Bimonthly News Journal of the Association of Science-Technology Centers July/August 2007 IN SCIENCE CENTERS S: O R U A N D D N U U THE AUDIO O EXPERIENCE S Sound Advice: Acoustic Considerations for Exhibit Design Designed for Attentive Listening: Dealing with a Challenging Environment ‘Wild Music’: Making the Most of Sound in an Exhibition Wired for Music: The Science of Human Musicality Heureka’s ‘Music’: Sound with a Sociocultural Perspective Bimonthly News Journal of the Association of Science-Technology Centers IN THIS ISSUE Bonnie VanDorn Executive Director Wendy Pollock Director of Research, Publications, and Exhibitions Carolyn Sutterfield Editor Christine Ruffo Researcher/Writer Brendan Cartwright Publications Assistant Editorial Advisors Elsa Bailey National Science Teachers Association San Francisco, California, U.S.A. Rita Deedrick COSI Columbus Columbus, Ohio, U.S.A. Graham Farmelo Science Museum, London, U.K. Preeti Gupta New York Hall of Science Queens, New York, U.S.A. Mikko Myllykoski Heureka, The Finnish Science Centre Vantaa, Finland Vishnu Ramcharan Ontario Science Centre Toronto, Ontario, Canada Contributors Philip Blackburn Eric Dimond Donald A. Hodges Mikko Myllykoski J. Shipley Newlin Wendy Pollock Stephen Pompea Andrea Weatherhead July/August 2007 Researchers who study the human brain and nervous system continue to find connections between environmental sound (both ambient and organized) and behavioral/emotional response. Anthropologists and neuroscientists alike tell us that music has been and remains critical to the development and survival of our species. It seems that people are hard-wired to respond to the quality of sound around us. Yet the auditory environments of science centers do not always reflect that understanding. In this issue, we draw on research into acoustics, the brain, and learning, as well as current museum practice, to explore the effect of sound on human experience—with implications for the design of both exhibits and the larger museum environment. Features Sound Advice: Acoustic Considerations for Exhibit Design . . . . . . . . . . . . . . . . . . . 3 Designed for Attentive Listening: Dealing with a Challenging Environment . . . . . . . 5 ‘Wild Music’: Making the Most of Sound in an Exhibition . . . . . . . . . . . . . . . . . . . . 8 Wired for Music: The Science of Human Musicality . . . . . . . . . . . . . . . . . . . . . . . . . 9 Composing an Exhibition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Heureka’s ‘Music’: Sound with a Sociocultural Perspective . . . . . . . . . . . . . . . . . . . . 12 Science Sonatas: Listening to Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Sound Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Departments Calendar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ASTC Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Spotlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Grants & Awards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 People . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Cover: A variety of interactive exhibits posed challenges for Wild Music, a 4,000-square-foot, National Science Foundation–funded traveling exhibition launched earlier this year by ASTC and the Science Museum of Minnesota. Wild Music explores the evidence for music’s biological origins and seeks to expand visitors’ understanding of what constitutes music. Photos, clockwise from left: Jamming Room by Wendy Hancock; whale song spectrograms courtesy Science Museum of Minnesota; Bird Song and Touchable Sound exhibits by Dale Dehmer ASTC Dimensions (ISSN 1528-820X) is published six times a year by the Association of Science-Technology Centers Incorporated, 1025 Vermont Avenue NW, Suite 500, Washington, DC 20005-6310, U.S.A. Copyright ©2007 the Association of ScienceTechnology Centers Incorporated. All rights reserved. ASTC Dimensions is printed on 45 percent recyled paper with environmentally friendly inks. ASTC Dimensions is intended to keep member institutions apprised of trends, practices, perspectives, and news of significance to the science center field. All ASTC members receive five free copies of each issue as a benefit of membership. Individual subscriptions are also available: For employees of ASTC-member institutions, the annual rate is US$35; $45 outside the United States. For all others, the price is $50; $60 outside the United States. Send name, address, name of institution, and payment in U.S. dollars to ASTC, 1025 Vermont Avenue NW, Suite 500, Washington, DC 20005-6310, U.S.A., Attn: ASTC Dimensions. For more information or to order bulk subscriptions, call 202/783-7200 x140, or e-mail pubs@astc.org. ALTERNATE FORMATS AVAILABLE ON REQUEST. To submit news items and ideas for articles, contact Carolyn Sutterfield, editor, 202/ 783-7200 x130; e-mail csutterfield@astc.org. For editorial guidelines, visit www.astc.org. ASTC Dimensions • July/August 2007 3 Sound Advice: Acoustic Considerations for Exhibit Design By Andrea Weatherhead H as anyone ever asked you, as you returned from visiting a new exhibition, “So how did it sound?” And if someone did, have you ever had anything positive to say? Sadly, acoustic design in exhibitions is often noticed only when it has been done poorly or not at all. The typical exhibit designer emphasizes the visual at the expense of the auditory. But with today’s audiences increasingly expecting museum exhibitions to include media-rich experiences, the arts of acoustics and audio delivery are of growing interest to developers and designers. To convey their messages, exhibitions now draw on everything from ambient audio, video, kiosks, and multimedia interactives to electromechanical experiences, simulator rides, and immersion theaters. Each of these experiences emits not only its own audio content but also attendant mechanical sounds—and often loud shrieks of glee from visitors as well. What effect does this new wave of audio experiences have on visitor satisfaction? Quite a lot, as it turns out. When integrated with imagery, lighting, and graphics, sound is an important communication tool within the museum. It adds emotion and dimension to the visitor experience. It appeals to a variety of learning preferences. It provides a way for designers to transport people into the “worlds” they create. Sound even appears to play an active role in learning and memory. A 1996 report from the U.S. Department of Labor’s OSHA Office of Training and Education cites research indicating “that three days after an event, people retain 10 percent of what they heard from an oral presenta- Left: A media map—pictured here, a project at Calgary, Alberta’s Glenbow Museum—is a graphic that lets the design team see an exhibition from a sonic point of view. Above: The Sound Lab at Seattle’s Experience Music Project illustrates the challenge of managing competing sound spaces. All images courtesy Weatherhead Experience Design Group tion, 35 percent from a visual presentation, and 65 percent from a visual and oral presentation.” As the use of sophisticated sound media in museums becomes more prevalent, the quality of the experience will become even more crucial. Anyone who has ever fled from a noisy science center gallery (“Too loud—I just had to get out of there!”) can tell you that auditory exhaustion comes sooner than visual. It is vital that content developers, architects, designers, and fabricators understand how to manage sound, lest their expensively produced efforts drive visitors away. Setting the stage for success The integration of sound in exhibits calls for rigorous design considerations from the start. It is possible to improve the sound experience within almost any setting, but strategies need to be mapped out ahead of time, not applied as bandages to poorly planned environments. To develop a sonically successful exhibition, it takes a minimum of four critical players: the exhibit designer/ developer, the acoustics engineer, the A/V or multimedia designer/producer, and the museum leader. Nontechnical personnel must acquire at least a basic understanding of acoustics and how sound behaves in a space, and the director or deputy who signs off on the budget must understand that acoustic planning, design, and treatment are exhibition priorities. In an ideal process, this core group, in concert with other members of the exhibition team, will • engage in a thoughtful and collab- 4 July/August 2007 • ASTC Dimensions orative process of media planning; • apply architectural acoustic practices at the right time in the development process (before floor plans are established and finishes specified); and • implement effective audio delivery systems and acoustic treatments for both new and existing exhibit spaces. Mapping the media A planning device frequently suggested by acoustic engineers and media producers is “media mapping.” In this collaborative effort, team members first define how much and what kind of audio they want to include in exhibits and then pace out the exhibition space on foot, mapping it according to the various sound-emitting components. During this walkthrough, the engineer and producer will ask typical questions of design staff to help categorize elements appropriately: • Content: What do you want to communicate to the visitor in terms of content? Will sound be archival (thus possibly of poor quality) or original? Will there be music? Spoken word? • Delivery: Will audio elements be mono, stereo, or surround-sound? Do you want a mini theater, looping audio, an ambient soundscape, interactive sound exhibits, live demos with docents? Will visitors use personal audio devices (headsets, wands, or PDAs)? Does the exhibition include immersive environments? Quiet areas? • Accessibility: How do you plan to meet ADA requirements? Will there be auditory labels for people with visual impairments? If there is an audio tour, will it need to sync audio from the exhibition’s media programs? Following the walkthrough, the engineer and producer draw up a spreadsheet listing all the planned activities and their attributes (e.g., how many people are intended to hear a narration, and what type of sound elements are in it?). The next step is, in consultation with the design team, to arrange the audio elements according to the ideal storyline of the exhibition and the available space. Where will the audio take place? Will there be live presentations in Focusing sound helps to create personal space within an exhibition. Left: directional speakers serve the purpose for Pizza Run, an interactive exhibit in STARTUP, the New Mexico Museum of Natural History’s exhibition on the history of microcomputers. Top right: a design for a simple speaker tube. certain spots? Will activities overlap sonically? What is your expected throughput (number of visitors on a peak day)? Do nearby exhibit areas depend heavily on the use of sound? The final result is the media map, a graphic that lets everyone see the situation from a sonic point of view. This makes it possible to identify and mitigate competing sources of sound before anything is built. Addressing architectural challenges Like a pebble dropped in a pond, sound spreads outward—in this case, spherically—as waves of air pressure. Higher frequencies are more directional and easier to absorb or block; lower frequencies generate larger wave lengths capable of passing around or over small objects and partitions. Three main factors affect the quality of the sound experience in a given museum space; all have specific solutions. 1. Cavernous spaces: The tiled floors, cement walls, and domed ceilings that make science center lobbies visually appropriate and impressive also make them unfriendly as gathering spaces for the kind of parties or musical performances often hosted there. Fortunately, there are acoustic treatments or solutions that can help. Careful positioning of temporary panels or hanging of drapes across glass walls can deaden reflective surfaces. In new construction, adding a glass wall at a slight tilt can ensure that sound reflects up into an absorbent area. Sound absorption can be added behind video screens and in the ceiling and sidewalls. 2. Reflected sound: Acoustic engineers commonly measure the reverberation (reverb) time of a room—how long it takes for a sound to fade from its initial “incident attack” volume to the end of its last echo. As the reverb time of a given space increases, ambient noise goes up and intelligibility decreases. In museums, this means that visitors raise their voices, underlying noise levels go even higher, and the vicious cycle repeats. Some degree of reverberation adds to the quality of a musical experience, but since museums are mainly concerned with sound abatement, the goal is usually to reduce reverb time. This is done through various means of sound absorption. Ceilings can be made of attractive perforated metals and/or woods, with absorbent materials behind them to soak up sound. Sound-absorbent structures can be incorporated with other required infrastructure, too: An acoustic absorbent “cloud,” for example, can carry lights, sprinklers, and wiring for audio (Continued on page 7) ASTC Dimensions • July/August 2007 5 Designed for Attentive Listening: Dealing with a Challenging Environment By Eric Dimond A nyone who has ever visited the Exploratorium can imagine the challenges involved in adapting our space for an exhibition on the topic of listening. The museum is housed in a curved steel/concrete structure nearly a quarter of a mile long, with a peaked roof towering more than 50 feet above visitors’ heads. Less than 20 percent of the interior space is carpeted, interior walls are rare, and only a few sections of the exhibit floor have lowered ceilings. In addition, many of the exhibits produce sound (some are quite loud, in fact), and our visitors are not particularly quiet either. All of these factors combine to create a listening environment that hovers around 80–85 decibels (dB) at midday (somewhere between the sound of a working vacuum cleaner and the sound of truck traffic, according to one scale). In undertaking to build Listen: Making Sense of Sound, a National Science Foundation-funded exhibition focused on finding ways to support visitors in listening attentively, the exhibition team knew that our space would require some sort of acoustic treatment. But as we began the project, we didn’t know what exactly that would look like, how extensive it would need to be, or what it would cost. Exhibition designer Diane Burk and I had several goals for Listen’s acoustic environment. Some criteria were obvious from the beginning, but others evolved as we learned more about the realities of creating sonically effective environments with finite amounts of time and money. Basically, we wanted the following: • a flexible acoustic design plan that would be easily adaptable, in the short and long term, to the changing needs of the exhibition and the museum itself • a uniform aesthetic that would not visually distract from the focus on listening • acoustically protective alcoves that would accommodate specific exhibits and groups of 1–3 visitors • spaces that allowed visitors to feel ownership of exhibit experiences while allowing good visibility across the collection. There were two main reasons why our approach needed to remain flexible. The first was that we were designing and building the overall acoustic system for the exhibition while we were still in the process of creating, evaluating, and modifying individual exhibits. We did not yet know what specific acoustic demands the complete collection would generate. More broadly, we also recognized that if there is one constant at the Exploratorium, it is change: The museum floor is always in flux, with exhibits, collections, and public Listen’s acoustically protective alcoves are clustered in groups of three to form a “honeycomb.” Narrow windows ensure privacy for users while permitting views across the floor, and the disc-shaped baffle floating overhead further improves the acoustics. Inset: A close-up of wall construction. Photos by Amy Snyder/©Exploratorium events continually changing the layout. Whatever we designed had to be adaptable to new conditions. A flexible, modular plan Early on, we began working with experienced acoustic consultants. Among the many ideas we adopted from Andrea Weatherhead, of Weatherhead Design (see “Sound Advice,” page 3), were both the overall wall design of the exhibition and the honeycomb shape in which individual alcove units are arranged. Ewart “Red” Wetherill, of Ewart A. Wetherill, AIA, helped us design a small theater and the sound-absorbing ceiling elements that hang over the honeycomb wall structures. Importantly, both Andrea and Red encouraged us to tackle our acoustics problems at the individual exhibit level first, rather than at the level of overall ambient sound. Without their expertise and attention, the experience of Listen’s visitors would not have been nearly as strong. Through a process of trial and error, the design team came up with a flexible modular plan for the exhibition’s rooms and alcoves. The primary components consist of wall units and a set of variously angled posts that connect them. Each wall unit is 6 inches thick, 4 feet wide, and 9 feet tall, with a narrow 6-inch horizontal window placed 52 inches above the ground. The windows are deliberately placed out of the view of most visitors using the alcoves; the idea was to provide privacy and safety and discourage destructive behavior while still allowing comfortable lines of sight through the alcoves from outside. To control sound within the units, corner posts were 6 July/August 2007 • ASTC Dimensions constructed in four angle configuraimprove the acoustics within. tions, allowing us to connect the Some of the exhibits in the collecwalls in several nonparallel foottion ask visitors to listen really prints. Plywood cores and 2.5-inch attentively, and for these it was clear acoustic baffling on each side limit we would need even more acoustic through-wall sound transmission. protection. The last significant Finally, the walls are covered with source of ambient noise we could perforated plywood exteriors with address was the alcoves’ open loose-weave burlap between insulaentrances. tion and plywood. We were reluctant to mount Our goal was a uniform aesthetic actual doors—one, because of the that would expose the design’s added cost and complexity and, acoustic functions to visitors in a two, because we did not want to simple, unembellished way. During make these spaces feel barricaded prototyping of wall units, we spent considerable time trying materials and patterns to find a combination that would achieve the goal of uniform look and feel but also be cost-effective and allow for practical long-term maintenance. In the end, we used plywood to construct both interior and exterior walls and posts. For the walls’ outer surfaces, we chose prefinished plywood custom cut with an oversized perforated pattern of uniform 1.5-inch holes. Although wood construction meant that the units would be heavy, this solution turned out to be the most cost effective—and it added a certain warmth to the exhibition that fit well with the For exhibits that require a visitor to listen especially team’s aesthetic preferences. The senior researcher on the Listen team, Sue Allen, designed a study to explore this possibility. The observational study compared visitor behavior at an alcove equipped with either full-length vinyl strips, shorter strips, or a completely open entrance (no strips). Observations of 116 visitor groups suggested that the vinyl strip doors had no apparent effect on the number of visitors entering the space or the time they remained inside. In addition, the strips offered excellent visibility from both outside and inside, allowing visitors to see each other and maintaining a sense of the collection’s spatial continuity. Lessons from Listen The Listen team learned some key lessons about working with sound during this project: • We discovered that it saves time and money to think about acoustics from the start. We consulted experts early on and made sure to set aside an appropriate portion of the budget for materials, experimentation, and construction. • We also learned that it is not necessary to use specialty materiattentively, the designers added “doors” made of clear als. Our vinyl strip doors were vinyl strips. These strips decrease the ambient noise inexpensive to make, and the An extra level of sound level by as much as 10 dB, but do not inhibit visitors standard house insulation our conprotection from entering. Photo by Amy Snyder/©Exploratorium sultants recommended in place of costly brand-name acoustic foams We arranged most of the wall worked just as well in absorbing and unwelcoming. Instead, we units into small alcoves, each deexplored a cost-effective solution: sound. (We even found a flamesigned to accommodate a single “doors” made of hanging vinyl retardant brand made from recycled exhibit and 1–3 visitors. Clustering strips. jeans.) these alcoves in groups of three (a In the past, the Exploratorium had • Finally, we learned that although configuration we call a “honeyused opaque versions of strip barriintegrating overall design and comb”) meant they could share ers in exhibit enclosures to control acoustic design solves many probwalls, for a significant cost savings. both light and sound. Based on lems, it is still important to prototype One of our goals on this project those experiences, we installed clear as many of the acoustic elements on was to design spaces that wouldn’t vinyl-strip “doors” on several of the the museum floor as you can. With feel like rooms or cubicles. But Listen alcoves. careful early planning, we had time as we began testing exhibits within Like the addition of the hanging and money to make last-minute the alcoves, we realized that some roof baffles, the strip doors enadjustments to individual exhibits sort of acoustic protection was needhanced the sonic effectiveness of that greatly enhanced their acoustic ed above them. the units, decreasing the ambient effectiveness. ■ After prototyping several “roof” noise level by as much as 10 dB. designs, we settled on disc-shaped This seemed to solve the problem. Eric Dimond is an exhibit developer acoustic baffles large enough to Nevertheless, we worried that the at the Exploratorium, San Francisco, cover the three clustered alcoves of perceived or actual effort of pushing California. To learn more about a honeycomb. Hung to float about through the strip doors might inhibit Listen: Making Sense of Sound, visit 1 foot above the top edges of the some visitors from entering. www.exploratorium.edu/listen. alcove walls, the baffles dramatically ASTC Dimensions (Continued from page 4) delivery. Acoustic materials can double as finishes, thermal insulation, light reflectors, partitions, and graphic panels. 3. Sound bleed: To block transmission of noise via the HVAC system, acoustic engineers may apply duct liner to duct exteriors, install baffles at the openings of returns and vents, and build ducts with sharp U-turns. To minimize sound bleed from competing sound sources, sound can be focused with individual domes or steered arrays—devices with lots of tiny speakers and relatively good frequency response. (These work well in lobby spaces.) A budget way to focus sound is a speaker tube (see diagram, page 4) consisting of a four-sided plywood box, a loudspeaker, and a 3foot length of duct liner; its waterfall effect focuses sound quite well. Ensuring effective delivery It is essential that the hardware you select to support planned exhibit experiences conforms to the soundfocusing requirements discussed above. This is where a media producer or acoustic engineer can help. Some audio may require special equalization or shaping to make it intelligible. Music calls for better fidelity than spoken word, and the delivery of full-spectrum frequency requires good-quality loudspeakers, carefully positioned. For hands-on experiences, speakers may need to be placed inside exhibit casework. Here are some adaptations for particular needs: • Contained sound: For minitheaters, where the goal is to reach several rows of visitors, speakers can be placed on either side of a video screen and along the walls toward the back of the space. This gets the sound as close to visitors as possible while keeping the overall volume low. Other methods for containing sound in spaces without doors range from partitions to spiral enclosures to sound locks (entries/exits with absorbent panels and hairpin turns). • Floor speakers: Where a ceiling is too high for mounting speakers, sound can be focused out of the floor. This must be specified early on, since such speakers require a recess in the floor. Aimed slightly at an angle, a floor speaker array will hit visitors’ heads when they are standing at the right spot to watch a screen. • Immersive experiences: Immersive experiences tend to have omnidirectional seating, making the specifications and locations of speakers extremely important. Spoken word, sound effects, musical scores, and a soundtrack may all be key elements of these experiences, in which sound is often used to direct the visitor’s attention to different points of view. The case for acoustics It takes courage to make a commitment to good acoustic design. The problem is invisible, and treatment is not cheap. The process, with its attendant special shapes, materials, finishes, and floor plan considerations, is enough to make designers tear their hair. It is hard work. Is acoustic design worth fighting for? Undoubtedly. Good acoustics are a tool to help exhibitions communicate better, to make sure that what the designers want to be heard is heard, and that those elements that can be delivered effectively as media are distinguished from those that should remain visual only. The best outcome is that allowing for acoustics during the design process will ensure that visitors feel comfortable as they experience your exhibition. You may have felt like screaming as you dealt with the details of good sound design, but no one will need to run screaming from the cacophony of a chaotic sound environment. You have fought nobly for the visitor’s right to intelligibility and comfort and for an element that, although completely invisible, will make or break the exhibition’s success. ■ Andrea Weatherhead is a principal of Weatherhead Experience Design Group Inc., Seattle, Washington. • July/August 2007 7 Ten Tips for Good Acoustic Exhibit Design 1. Avoid hard-surfaced, highly reflective materials—i.e., stone, glass, metal, and concrete. They reduce control over where sound travels. Likewise, avoid components that will act as reflectors and bounce sound around the spaces, unless that is a desired effect. 2. High ceilings, especially those treated with absorbent materials, are better than low ones. Avoid domed ceilings, which can focus sound in unwanted “hot spots.” 3. Bass sound waves are long and difficult to control: consider using bass shakers, which replace bass audio with physical vibrations, tricking visitors into believing they are hearing those frequencies rather than merely feeling them. 4. In areas with multiple sound sources, provide ways to deliver sound close to a visitor’s ears. Competing sound sources need to be far enough apart that one is at least 10 decibels (dB) louder than the other. Take advantage of a predominant sound to mask other competing sounds. 5. Use circuitous routes between spaces to achieve acoustic isolation without the need for doors and ceilings. 6. Budget enough money and space for acoustic treatments; commercial soundabsorbing panels can run $10 to $40 per square foot. Cheaper materials exist, but you will need to budget time and labor for mounting them. Remember that absorption materials take up valuable space on floor plans, making walls, ceilings, and ducts thicker. 7. Consider carpeting areas of greatest sound intensity. 8. Ensure that spaces are free of excessive mechanical noise (e.g., do not locate exposed air units in the gallery). 9. When planning audio with video, you may want to use focused sound devices. A video monitor’s integral speakers are usually designed to cover as wide an area as possible. 10. Take special care with location and orientation of mini-theaters; sound bleed out the rear can interfere with adjacent exhibits. Doors are not needed if speakers and materials are chosen and placed wisely.—A.W. 8 July/August 2007 • ASTC Dimensions Making the Most of Sound in an Exhibition ‘Wild Music’: By Wendy Pollock and J. Shipley Newlin A Wild Music visitor compares her vocalization to the visual/tactile diagrams of vowel sounds in the Electronic Voice exhibit. Photo by Dale Dehmer S ound in an exhibition? Most of the time, exhibition planners think of sound as something to be dampened, controlled, or contained. The very term “sound bleed” suggests exhibits battling for attention in an atmosphere of cacophony. In planning Wild Music: Sounds & Songs of Life, the exhibition team—an unusual partnership among ASTC, the Science Museum of Minnesota (SMM), and the Music Research Institute at the University of North Carolina at Greensboro—decided to approach sound from an alternative perspective. We would treat it as an element to be tuned and composed, as well as an opportunity to enrich the experience for visitors who are blind or have low vision. Funding from the National Science Foundation, Harman International, and NEC Foundation of America, ensured that the team was well positioned for this task. We also were encouraged by what we were learning from our science advisors who study natural sounds as “soundscapes” (the acoustical equivalents of biomes), not just birdsong extracted from its context or a frog’s call minus its chorusing kin. Why not regard the exhibition in a similar spirit, with an overall and positive approach to acoustics paralleling traditional approaches to visual and spatial design? Of the many people who provided advice and expertise to guide us on this path, two were especially important in our experiments with sound: Walter Waranka, an access advisor we invited to serve on the exhibition planning team, and Philip Blackburn, the musician who ultimately composed the exhibition’s overall soundscape. Strategies for interpreting sound An employment consultant and president of the Minnesota chapter of the American Council of the Blind, Wally Waranka had participated in an ASTC Accessible Museum Practices workshop in 2002. His regular attendance at Wild Music planning sessions helped maintain a focus on the experiences of people with disabilities. Waranka could see the potential of the subject for people who are blind, as he is. Whale song, bird and insect calls, human music, the physics of sound— all are part of the study of the biological origins of music. There would be plenty to listen to. But assuming we could achieve high-quality sound, how could we ensure that the sounds would make sense to those who can’t read signs? And what experiences could be meaningful for people who are deaf or hard of hearing? With Waranka’s advice, the developers devised an array of strategies for interpreting sounds. These included • Braille and acoustic labels. Standardized locations make these easy to locate. • Tactile relief models. In one exhibit, for example, whale models are associated with buttons that activate different species’ songs. • Tactile diagrams. In an exhibit about animal vocalization, visitors can select a tactile sonogram of a bird, mammal, or insect song and insert it into a slot, activating an audio recording. In an exhibit about the human voice (see above), tactile diagrams illustrate the shapes of anatomical airways and working mechanical analogs. • Experiences of sound as vibration. A spectrum analyzer that works through vibrating metal reeds allows visitors to both feel and see that single sounds are often composed of several frequencies. In the exhibition’s small theater, “bass shaker” speakers bolted under the seats let visitors feel low-frequency parts of the soundtrack, while limiting the spread of these hard-to-contain sounds into the rest of the exhibit space. • Visual representations of sound. In a working model of a larynx, a fan blows low-pressure air through rubber flaps. By pulling on a control knob, visitors can stretch the flaps and bring them together, producing a sound that varies in pitch with the tension applied. Strobe LEDs help visitors see how vibrations make the sounds they hear—or to see sounds they can’t hear. After constructing a series of prototypes with Waranka’s advice, we tested them with other consultants who had developed exhibits with people who are deaf and hard of hearing. We also tested ASTC Dimensions prototypes during a session focused entirely on accessible design. This was attended by members of several Twin Cities groups that represent people who have personal and professional experience with disabilities. A positive experience for all It was important to the Wild Music team that an exhibition about the deep roots and universality of music be broadly accessible and offer a rich and positive sonic experience. Not content with containing, controlling, and interpreting (Continued on page 11) July/August 2007 9 Wired for Music: The Science of Human Musicality By Donald A. Hodges Containing and controlling sound In addition to making individual sound experiences intelligible to a wider range of users, we were committed to creating an overall sound environment that was meaningful and harmonious. With 32 interactive exhibits in a 4,000square foot space, this required a variety of sound-containment strategies. From among the more familiar, we adapted several that were best suited to the exhibition’s intent: • Headphones. Although headphones have drawbacks, our musical consultants persuaded us that there was no way to achieve enough high-quality sound experiences without them. We were encouraged by the example of Seattle’s Experience Music Project, which makes extensive use of headphones. We chose lightweight AKG headphones and, to counter the potentially isolating effect, provided them for the most part in pairs. • Near-field speakers. We mounted high-quality speakers at about ear height for an adult seated on a stool, and provided start buttons and volume controls to reduce unnecessary sounds when an exhibit is not in use. • Enclosures. We constructed three types of enclosures: a professional music practice room; open, roofless carrels with nonparallel, insulation-filled walls to reduce internal reflection and sound bleed; and a theater that uses hanging baffles with other acoustic elements. • M in the floors of caves, indicating dance (hence music); wear patterns on bone and rock fragments, indicating usage as percussion instruments; and even some early instruments. One bone flute is thought to be around 53,000 years old. There is corollary evidence, too—in the fact, for example, that the caves most acoustically suited for singing and chanting are precisely the ones that have the most paintings. Anthropologists tell us that the bow is as much a musical instrument as it is a weapon. Humans thrive in communities, and those attributes that help to meld individuals into a cohesive unit provide an obvious survival value. Singing and dancing are two of the most powerful ways to create social unity, and every tribe or cultural group documented thus far identifies itself through particular songs and rituals. Equally important for survival are the musical capacities in mothers and babies that allow them to share and express emotions during the infant’s years of dependence and growth. Mothers share important information with their babies by a host of behaviors, including singing, As old as humankind rocking, and patting in a rhythmic fashion and speaking in a way Fifty thousand years ago, (dubbed by some “mothour ancestors were erese”) that emphasizes spending the time, pitch, timbre, rhythm, and energy, and creative dynamics. Infants, likewise, brain power necessary to learn early on to modulate make and use musical their voices to convey instruments—a fact that emotional states. says something important Memory is also of crucial about the significance importance to the survival music has for our species. of a society. Not only is Although the evidence memory of a technological for ancient music is not nature important: When as common as that for best to plant? Where best ancient art (instruments to find game? How best to of reeds, wood, and start a fire? Equally vital hides being less enduring are the things that make a than cave paintings), Wild Music advisor Jelle Atema society unique and spethere are still numerous indicators of early music. plays a replica of a Neanderthal cial: Who are we? Where bone flute. Photo by Gabriele Gerlach did we come from? What These include footprints usic is at the very core of what it means to be a human being. To find music is to find human beings, and vice versa. Although some features of the natural soundscape (e.g., that which we call bird song or whale song) bear remarkable similarities to human music, nothing in any other species remotely compares to the richness, variety, and sheer amount of music that humans produce. Indeed, humans spend such an inordinate amount of time, money, and passion on music that it seems as if we are wired to be musical. And so we are. Both anthropological and neurological research support the conclusion that, for human beings, music is not a happy accident but rather an adaptive behavior that has provided significant survival benefits for our species over time. Although we may vary in our musicality, no human is bereft of musical sensitivity. Criteria such as gender, age, race, or socioeconomic status cannot by themselves prohibit any person from a meaningful experience with music. 10 July/August 2007 • makes us better than our enemies who live on the other side of the river? Music is one of the most effective mnemonic devices. It enables preliterate societies to retain information—not just facts, but the feelings that accompany those facts as well. Poems, songs, and dances are primary vehicles for the transmission of a culture. ASTC Dimensions human health and well being. A unique way of knowing The basic, biological equipment of our species includes a musical brain that provides us with rich insights into the human condition and Researchers are still mapping locations of music perception in the human brings us great joy brain; areas marked are linked to song recognition. Image courtesy Donald Hodges Based in the brain and beauty. Just as language, mathematics, and other likely due to good time management The human brain is modularized— intelligences provide unique ways of skills, parental support, and so on, meaning that there are relatively understanding, sharing, and expressthan because music has made them separate neural networks for various ing our inner and outer worlds, so smarter. Musical training undoubtcognitive domains (e.g., language, too does music offer unique ways of edly makes people “musically mathematics, music). Within the neural knowing the world. smarter,” but transfers into other network for each domain are nodal Music is not just an accidental domains are likely to be limited. points involved in particular facets of byproduct, providing people with Although our brains come wired in processing. In language, there are pleasant things to do in our leisure such a way that we could learn any locally specialized regions for speaktime. Music was critically important musical style, specific musical expresing, for understanding speech, for to our development as a species, sion is culturally determined. As reading, for writing, and so on. The and it continues to be at the core of children we learn the musical lansame is true for music, although what it means to be human. ■ guage of our culture in the same way neuroscientists are just now beginthat we learn to speak English or ning to map musical pathways. ReWild Music advisor Donald A. Swahili or Mandarin Chinese. Of search shows that music activates reHodges is director of the Music course, some of us are multimusical, gions of the human brain that Research Institute at the University of just as some are multilingual, but are widely distributed, but locally North Carolina at Greensboro. much of what is expressed in music specialized. These areas include is culturally based. Without training, front-back, top-bottom, and leftReferences it can be difficult to understand the right pathways in the brain. • Avanzini, Giuliano, Carmine music of another culture. Active music training, particularly Faienza, Diego Minciacchi, Luisa Being fully human means to expeif it starts before the age of 7, leads Lopez, and Maria Majno. The Neurorience the infinite shadings that exist to changes in areas of the brain sciences and Music. New York: between the polar ends of emotional dealing with auditory processing, Annals of the New York Academy of states. Our experience of these motor control, and sensory inteSciences, Vol. 999, 2003. refined feelings is essentially nongration. Many differences in brain • ———————. The Neuroverbal. Our vocabulary is limited in structures and functions have been sciences and Music II: From Percepthis area, and we often experience demonstrated in adult musicians, tion to Performance. New York: difficulty in telling one another exactwhen compared to untrained subAnnals of the New York Academy of ly how we feel. Music is one of the jects. It must be clearly stated that Sciences, Vol. 1060, 2005. most powerful outlets for expressing brain changes occur not only with • Hodges, Donald A. “Neuromusical emotion, and emotional response is music, but also with anything one Research: A Review of the Literaclearly at the core of music’s meanspends time doing, such as playing ture.” In Handbook of Music Psying. Yet this topic, until recently, has sports. Nevertheless, there is comchology, Second Edition, Donald A. not received much attention. pelling support for the effects of Hodges (ed.). University of Texas at Neuroscientists are just beginning early childhood musical experiences. San Antonio: IMR Press, 1996. to identify brain sites involved in Some have construed this to • Wallin, Nils L., Björn Merker, and affective responses to music, and mean that “music makes you Steven Brown, eds. The Origins of some physicians are already using smarter,” but there is limited eviMusic. Cambridge, Mass.: MIT Press, affective responses to music in the dence to believe that this is the 2000. practice of music medicine. Studying case—at least not in the simplistic • Zatorre, Robert J., and Isabelle emotion is not easy, and progress is sense. Students who participate in Peretz, eds. The Biological Foundalikely to be slow. But in time, there band, chorus, or orchestra do typitions of Music. New York: Annals of will be many applications and undercally have higher SAT scores than the New York Academy of Sciences, standings of music as it relates to the average student, but this is more Vol. 930, 2001. ASTC Dimensions (Continued from page 9) a collection of sounds, we decided to approach the entire exhibition as a soundscape—or, more exactly, three interconnected soundscapes. Because the songs of birds, whales, and people are key strands in the biology of music, we organized much of the exhibition into thematic areas we called the Edge of the Forest, the Town, and the Ocean Deeps. Each is anchored by a schematic “set” and distinguished by a composition by environmental sound artist Philip Blackburn. (For details on that process, see “Composing an Exhibition,” below.) The compositions create an acoustic niche both for exhibits that can be heard at a distance (such as a giant wooden xylophone) and for visitors’ conversations. These themes were extended in a teacher workshop and public programs held when Wild Music opened. Whale expert Roger Payne, one of the project advisors, spoke about his research and played recordings of whale songs; we had to rent speakers capable of trans- Composing an Exhibition A • July/August 2007 11 mitting the vibrations of their deep bass notes throughout the museum. A local gamelan performed bird-related Indonesian compositions, and SMM’s teen volunteers shared pocket science demos with visitors. Work in progress Wild Music opened in March, and as it moves to the North Carolina Museum of Natural Sciences in June, we are just beginning to explore the possibilities for reaching new audiences through its rich sound experiences and themes. Evaluation suggests some fine-tuning that will help improve the visitor experience, but in general the response has been overwhelmingly positive. Visitors are telling interviewers that they appreciate the tactile experiences and the presence of Braille and acoustic labels, even though most haven’t used them themselves. Wally Waranka reports that this is the first exhibition he feels he can navigate and enjoy almost entirely on his own. In fact, he has brought his col- Wild Music consultants test a prototype spectrum analyzer for the Touchable Sound exhibit. Photo by Wendy Hancock leagues in the employment agency to visit, hoping to inspire their approach to workplace accommodations. ■ Wendy Pollock is ASTC’s director of research, publications, and exhibitions. J. Shipley Newlin is program director for physical sciences at the Science Museum of Minnesota, St. Paul. For more on Wild Music, visit www.wildmusic.org. By Philip Blackburn s an environmental sound artist, a composer who went outside, I am interested in sound as a public art form. I make instruments powered by the wind, write music for ships’ horns in harbors, and produce concerts for conch shells, lithophones, and jumping beans. Venuewise, experimental composers are generally a homeless bunch; for me, Philip Blackburn led Sound Crew museums have become a participants in gathering the field welcome home. We share an recordings that would later inform open-ended sense of curiosity, his work for Wild Music. Photo by wonder, and discovery. Kristen Murray My involvement with Wild Music began in 2005 with Sound Crew, a summer workshop for youth I led in collaboration with Kristen Murray of the Science Museum of Minnesota’s Youth Science Center. With support from a local arts funder, we spent time wondering what this land of 10,000 lakes sounded like under water. We constructed hydrophones, took field trips, explored soundscapes, and made recordings that I later used to compose a piece of music called “Symphony in Sea” (available at www.wildmusic.org). I also became involved in overall planning for Wild Music, offering a musician’s perspective and ultimately composing a soundtrack for the exhibition with advice from Victor Zupanc, a theatrical sound designer. The hour-long, looping, six-channel composition not only unifies the exhibition, but also provides a distinguishing sense of place for each of its three main areas: the Edge of the Forest, the Town, and the Ocean Deeps. All sounds are 100 percent organic in origin—among them a Bulgarian double flute, a Hmong reed pipe, an Aeolian harp catching the wind, Samoan cicadas accompanied by human drummers, and even a lawn sprinkler. These sounds were slowed, filtered, and shaped to complement sound frequencies occupied by visitors and exhibits. The resulting music, the ambient backbone, is generally low in pitch, sustained, ever-changing, and subtly varied. Like a movie soundtrack, it provides aural space—a setting for the sounds of whales, birds, musical tones, and human voices. The intended total mix is about 40 percent ambient (the soundtrack), 40 percent exhibit sounds, and 20 percent visitors’ conversation. No volume setting is perfect for all crowd conditions, and we periodically fine-tune the settings. At the request of our most constant audience, we removed one high string sound that floor staff found intolerable. Every visitor will experience a different perspective on the overall composition, and different locations will provide new challenges as speakers and sound levels are adjusted to accommodate new floor plans. The result is likely to be somewhere between a work-in-progress and a living acoustic ecology. With luck, visitors will be guided as much by their ears as by their eyes and leave the space ready to explore the soundworld outside with fresh attention and wonder. ■ Philip Blackburn is senior program director at the American Composers Forum, St. Paul, Minnesota. 12 July/August 2007 • ASTC Dimensions Heureka’s ‘Music’: Sound with a Sociocultural Perspective By Mikko Myllykoski S cience centers are vivid and Exhibits for social socially sparkling places, engagement but they are also often noisy and restless. At Finnish art The Music exhibition would, of museums, lone visitors make up course, devote space to the physics one-fifth of the audience, but at of sound; that became the focus of Heureka, the Finnish Science the area we call “Play with Centre, 99 percent of visitors Sounds!” But we also included arrive in company. Add to that three areas that we hoped would our modern architecture of conbe socially engaging for our audicrete, steel, and glass, and, closing ence: “How Do We Experience your eyes, you can imagine being Music?,” “Sounds of Cultures,” at a public swimming pool. It is a and “Let’s Play Music.” challenge to bring meaningful Exhibits for the first two of sound to this acoustic environthese areas were designed to break ment, but that is what we decided barriers by allowing visitors to to try in 2005 with Heureka’s share experiences: traveling exhibition Music. • Cultural similarities and difAny exhibition on music has ferences can be felt in Beat Time!, a high potential for offering an exhibit based on joint research audiences more than just wave by Cornell and Jyväskylä universidiagrams. Music is a channel of ties. The player is invited to clap communication: Through music, in time with four music samples people share emotions. Music is and then compare his/her own performed together and enjoyed performance with that of groups together: It is a form of social of American, African, and Euroglue and a celebration of companpean clappers. The message is ionship. And, finally, music is an that beat can be experienced difexpression of identity; the music ferently, depending on culture. A visitor to Heureka’s Music exhibition tries some licks we choose to listen to tells someon the Virtual Air Guitar. Perhaps the most striking example Photo by Saila Puranen thing about who we are. is the African folk song “Mma Heureka’s exhibition, we thereSelina,” where Europeans find fore decided, should not be an isolated percentage of Finns actively involved in that they consistently clap a quarterand lonely experience. Blocking the music making has been in decline: Bebeat behind the African pulse. sound behind closed doors or cutting tween 1981 and 2002, the percentage • In What Makes Us Sing?, a quiz the communication between visitors of the population who said they played about sociomusical practices, two to by having them wear earphones would an instrument dropped from 20 perfour players try to figure out what difnot be options. That was our first cent to 14 percent, with a similar ferent folk music samples are intended challenge. decline in the number who identified to convey. Possibilities range from work A second challenge became apparent themselves as singers (6 percent of men songs to wedding songs, from lullabies as we interviewed visitors for the frontand 9 percent of women in 1981 vs. to drinking songs. The task allows playend study. We learned that a great many 5 percent and 6 percent in 2002). ers to draw on common ground and people do not “consider themselves To create an impact with our exhiyet still be charmed by the unique local musical.” (“Not after the song test in bition, we needed to take this trend characteristics of the music. school” was a typical self-assessment.) seriously. “People who lack the experi• Songs About Us is a musical version This result was reinforced by research ence of making music” became the of Heureka’s classic Language Globe. from Statistics Finland showing that the point of departure for our project. Visitors can (Continued on page 14) ASTC Dimensions • July/August 2007 13 Science Sonatas: LISTENING TO DATA By Stephen Pompea I first met Marty Quinn seven years ago on the exhibit floor of a geophysics convention. You couldn’t miss his booth; it was the one blaring the music with tympani gone wild. Titled Climate Symphony, Quinn’s composition was not a rain dance but a condensation of 110,000 years of Earth’s climate into 7 minutes of music. What the drums were pounding out, I would learn, was a massive volcanic eruption that created high dust levels in the atmosphere many tens of thousands of years ago. Quinn had converted climate data gleaned from nearly two miles of Greenland ice cores into symphonic music. The levels of carbon dioxide, methane, sulfates, potassium, dust, and other gases recorded by the ice over the millennia could have been represented visually on strip graphs stretching hundreds of feet. Instead, Quinn had made the data more accessible by converting it to music, assigning each recorded variable a different instrument. It was marvelous to me that you could understand all of the interrelated climate events just by listening to this one composition. Before each repetition of his symphony, Quinn gave a brief description of which instrument “played” each data set, allowing a careful listener to discover in the music the long-term changes in Earth’s climate, including those pounding dust clouds. The science of auditory display This process of “sonification,” using nonspeech audio to convey information, is not only useful scientifically but may have promising practical and aesthetic applications. Not everyone absorbs information best visually or by In this depiction of data used to generate Marty Quinn’s “Rock Around the Bow Shock” composition, vertical lines represent spacecraft crossing the bow shock created where the solar wind meets Earth’s magnetosphere (inset). Illustrations courtesy University of New Hampshire Experimental Space Plasma Group using visualization tools. Sometimes sound seems to be a better match for complex, patterned information. Sonification is not new. The Geiger counter and even a church bell tolling the time are examples of converting data to sound. Auto mechanics work on this principle, of course—or used to, before cars had computers. Imagine a power plant operator listening to all of the information that would normally come from dials, gauges, and computer screens: When everything is going well, the sound is melodic; when something starts to go wrong, the music changes in a way instantly apparent to the operator. The human brain is naturally skilled in listening to music. Want to know if the numbers of pi repeat themselves? Convert them to musical notes of different pitch and listen for patterns. Or imagine that you can listen to and compare the sequence of DNA from two people, noting similarities or differences through harmony. Mike Ballora at Penn State and others have converted complex phenomena like electrocardiograms (EKGs) to music in a novel approach to their analysis. The driving force behind the effort to analyze science data using sound is the International Community for Auditory Display (ICAD), which holds meetings each year where papers are given on topics from better train whistles to conveying information to the blind. An eclectic group, ICAD represents the intersection of many fields of study. Its directors range from a staff member of the U.S. Naval Research Lab to a representative of the Buddhist Clarity and Meta Foundation. Many members are expert in several areas. While the mature field of visualization has benefited from the success of experts like Edward Tufte, whose seminars on the best ways to create 14 July/August 2007 • ASTC Dimensions visual displays of quantitative information regularly draw crowds, the field of sonification is still developing its tools, techniques, and language. But the idea of using sound to teach or entertain the public is not new. In 1970, at Columbia University, Charles Dodge created a composition titled The Earth’s Magnetic Field, which converted worldwide magnetometer measurements to music similar to Johann Sebastian Bach’s to give a sense of how our planet’s field changes with time. In the mid-1990s, NASA’s Voyager 2 scientists used sonification to solve a mystery that occurred when the spacecraft traversed Saturn’s rings. NASA’s Galileo mission team used it to better understand their measurements of Jupiter. Recently, Marty Quinn has designed sonifications (sometimes with creative visualizations) to communicate the tides of Venice; seasonal changes in the Martian ice caps recorded by the Mars Gamma Ray Spectrometer; data from spacecraft studying space weather; and data on ocean temperature that gives the signature of El Niño. Musical retellings Creating the proper translation between data and sound is challenging. Just mapping data from an Excel spreadsheet to the pitch, timbre, or volume of musical notes could be overwhelming to a listener or, even worse, painful to the ear. The key, says Quinn, is “to create a mapping system that makes it possible to notice patterns and also keep the listener’s interest.” That’s what this engineer, who is also a musician, strives to do in his New Hampshire–based Design Rhythmics Sonification Research Lab (http:// www.quinnarts.com). Can sound help the public understand complex phenomena? In a pilot project in Germany, weather forecasts are already being turned into a sensual experience in sound, representing weather’s nine different dimensions (variables) in music. Quinn’s own Solar Songs was commissioned by the University of New Hampshire’s Space Sciences Center to communicate up to six variables of space weather. One of his songs, “Rock around the Bow Shock,” is of interest to scientists who study the shock wave that forms where the solar wind interacts with the magnetic field of Earth. The area is of great importance in studying the aurora and the effect of solar storms on satellites. Quinn is working on a similar project for the NASA STEREO mission, along with the University of California–Berkeley’s Space Sciences Lab and the Christa McAuliffe Planetarium. He has even created a musical retelling of the Northbridge, California earthquake; Seismic Sonata is based on the different kinds and speeds of waves from the 1994 quake detected by a seismograph in Albuquerque, New Mexico. For auditory learners, and for those looking to use the full range of their senses, Quinn’s science translations of data into music are an unusual but pleasant earful. In the future, he predicts, sonification will become a powerful component of iconic exhibits at science centers. ■ Stephen Pompea (spompea@noao. edu) is manager of science education at the National Optical Astronomy Observatory, Tucson, Arizona. SONIFICATION WEB SITES International Community for Auditory Display (ICAD) http://www.icad.org Source for new ideas on how sound can be used, with links to papers presented at past ICAD conferences. Sonification Examples http://www.tomdukich.com Weather and mathematical constants, including pi. Sounds of Jupiter from NASA’s Galileo Spacecraft http://galileo.jpl.nasa.gov/sounds. cfm Sonification of NASA STEREO Spacecraft Data http://cse.ssl.berkeley.edu/ impact/sounds.html (Continued from page 12) rotate a big globe and plug in at 90 spots to listen to local folk music. Each song is chosen as an example of how communities build and strengthen social identity through songs. (This is one of the few exhibits in Music that does employ headphones.) • How does music get written? In Sound Wording, we devised an accessible way for visitors to experience composition by using words that imitate sounds. Users can compare 40 onomatopoetic words in different languages (Do the Swedish dunder and Finnish jyrinä both sound like thunder?) and incorporate their choices in a 30second composition that can have up to five tracks. The software then plays this “soundscape,” using predetermined natural sounds. The process is similar to actual music composition and highly accessible to many people. Our greatest challenge was how to turn visitors with no prior experience of playing an instrument into musical performers (and even members of a band). In the final section of the exhibition, Let’s Play Music!, this is made possible by the sensOrchestra, a quartet of novel instruments—a ball, a bow, a stick, and a harp—that are “played” by touching, slapping, hugging, or making simple hand movements. The music that ensues is precomposed, but still includes possibilities for improvisation, creation, and communication. The bodily art of performing is perhaps most accessible in the Virtual Air Guitar exhibit. Here, a computer is programmed to respond to the location and movements of a pair of orange gardening gloves worn by the player. Moving the gloves actually causes a Stratocaster to sound—either with power chords (riffs) or in a solo mode, enabling Jimi Hendrix–like playing. Testing the premise This article began by citing the acoustic limitations of Heureka’s environment. So, how well does Music work within that environment? Out of 24 exhibits, only one, Songs ASTC Dimensions About Us, is used exclusively with headphones. For two where precise listening is important (Test Musicality in “How Do We Experience Music?” and Play the Lahti Symphony in “Let’s Play Music!”), we added optional headphones to the exhibit speakers. Otherwise, we found that it was enough to set the exhibits in semiopen kiosks that have carpeting and some 50 mm sound absorption material on the walls. Only two of the exhibits have ceilings. These structural choices were based on the fact that the exhibition was built to travel. Visitors seem happy with the results. Our success will be put to the test in 2008, when Music will visit three science centers in Mexico. ■ Mikko Myllykoski is experience director at Heureka, the Finnish Science Centre, Vantaa, Finland; www.heureka.fi. • July/August 2007 15 The Sound of No Sound A s an interesting counterpoint to Music, Heureka will soon host Scenes of Silence, a new traveling exhibition by social entrepreneur Andreas Heinecke and exhibit designer Orna Cohen. Heinecke’s earlier Dialogue in the Dark exhibition offered sighted visitors an opportunity to share a multi-sensory experience in total darkness with visually impaired guides. Positive feedback from that exhibition’s visitors set a high standard for Silence, which will open at Heureka on November 24 and run through March 5, 2008. In the exhibition, deaf “ambassadors” guide small groups of visitors wearing noise-canceling headphones through rooms that are totally soundproof, exploring different aspects of nonverbal communication: gesture, facial expression, body language, and sign language. The contrast of sound/no sound, facilitated by a welcoming deaf guide, is intended to inspire a new appreciation of silence and to make an important but insufficiently understood way of communicating tangible to all visitors. “After an hour and a quarter in the world of silence together with a deaf guide,” says Heinecke, “hands, faces, and bodies start to speak, express, and exchange. People with different backgrounds can meet, share, and understand.” A permanent installation of Scenes of Silence opened in A deaf guide introduces Scenes of Rendsburg, Germany, in January 2007 Silence visitors to the basics of sign (www.schattensprache.de).—M.M. language. Photo © G2 Baraniak Sound Resources Bad Vibes www.sound101.org Join the hunt for the worst sound in the world with the U.K.’s Acoustic Research Centre and Museum of Science & Industry in Manchester. Sonic Arts Network www.sonicartsnetwork.org A U.K. organization that works to enable audiences and practitioners to engage with the art of sound in accessible and innovative ways. Classroom Acoustics: A Resource for Creating Learning Environments with Desirable Listening Conditions http://asa.aip.org/classroom/ booklet.html Prepared in 2000 for the Acoustical Society of America’s Technical Committee on Architectural Acoustics, this publication summarizes research on sound in learning environments. SoundLab@Princeton http://soundlab.cs.princeton.edu Free software from this site was used to create the sound visualizer in Wild Music’s theater presentation. Dangerous Decibels www.dangerousdecibels.org/ virtualexhibit.cfm A virtual version of the SEPA-funded project developed in 2001 by OMSI, the Oregon Health and Science University, the Veterans Affairs National Center for Rehabilitative Auditory Research, and the American Tinnitus Assocation. (See ASTC Dimensions, March/April 2001.) This Is Your Brain on Music www.yourbrainonmusic.com An online resource for the 2006 book of the same name by record producer turned McGill University neuroscientist Daniel J. Levitin. The site features an interactive map of the brain, clips of music examples cited in the book, and an annotated bibliography. World Forum for Acoustic Ecology http://interact.uoregon.edu/ MediaLit/WFAE/home WFAE is “a multidisciplinary spectrum of individuals engaged in the study of the social, cultural, and ecological as- pects of the sonic environment.” The site’s extensive online library includes articles, theses, “soundwalks,” links to related organizations, and more. SOUND AND MUSIC IN MUSEUMS A sampling of current exhibitions on sound and/or music developed by ASTC-member institutions: • Digital Studio, Sci-Tech, Perth, Australia • Hear Here, Montshire Museum of Science, Norwich, Vermont • Music, Heureka, The Finnish Science Centre (see page 12) • Listen: Making Sense of Sound, The Exploratorium (see page 5) • Shapes of Sound, Explora, Albuquerque, New Mexico • Sound Bum Project: Let’s Listen to the Sounds of the World!, Miraikan, Tokyo, Japan • Strike a Chord: The Science of Music, Questacon, the National Science Centre, Canberra, Australia • Wild Music, ASTC, SMM, and UNC–Greensboro (see page 8). —Compiled by Wendy Pollock and Carolyn Sutterfield 16 July/August 2007 • ASTC Dimensions Experts Enliven ASTC 2007 O ne of the great pleasures of any ASTC Annual Conference is the array of talented and successful speakers who accept our invitation to share their expertise with the science center field. ASTC 2007—hosted October 13–16 in Los Angeles by the California Science Center—is no exception. In addition to keynoter Geoffrey Canada (see ASTC Dimensions, May/ ASTC Notes June 2007), delegates can choose from a half-dozen featured speaker sessions: • Lawrence Bender and Davis Guggenheim, producer and director, respectively, of the Oscar-winning An Inconvenient Truth, will review the strategies that helped them design an illustrated science lecture compelling enough for theatrical release. • Internationally recognized neuroscience researcher Antonio Damasio, of the University of Southern California, will explore with us “The Scien- Calendar JUNE 7–9 8 SEPTEMBER CASC Annual Conference. Hosted by TELUS World of Science–Edmonton, Alberta. Details: www. canadiansciencecentres.ca/ conferences.htm World Ocean Day. Sponsored by the World Ocean Network and The Ocean Project. Details: www.worldoceannetwork.org 19–22 2007 ASPAC Conference. “Bridging Gaps in Innovative Ways.” Hosted by Miraikan, Tokyo, Japan. Details: aspac2007@miraikan.jst.go.jp JULY 17–21 Visitor Studies Association Conference. “Evaluation and Diversity: Listening to Many Voices.” Ottawa, Ontario, Canada. Details: www. visitorstudies.org 25–27 BIG Event 2007. Annual gathering of the British Interactive Group. Hosted by Magna Science Adventure Center, Rotherham, South Yorkshire, U.K. Details: www.big.uk.com 23–25 Giant Screen Cinema Association Conference. Vancouver, British Columbia, Canada. Details: www. giantscreencinema.com 24–29 21st Annual Theatre in Museums Workshop. Children’s Museum of Indianapolis, Indiana. Enroll by August 17. Details: Patricia Daily, patriciad@ childrensmuseum.org OCTOBER 2–6 Southeastern Museums Conference Annual Meeting. Little Rock, Arkansas. Details: www. semcdirect.net 13–16 ASTC Annual Conference. “Lights, Camera, Action: From Vision to Reality.” Hosted by the California Science Center, Los Angeles. Early bird deadline: August 10. Details: www.astc.org/conference JUNE 2008 15–20 5th Science Centre World Congress. Hosted by the Ontario Science Centre, Toronto, Canada. Details: www.5scwc.org For information on ASTC RAPs, visit www.astc.org/profdev/. For updated events listings, click on ‘Calendar’ at www.astc.org. tific Study of Emotion and Its Relevance to the Science Museum Field.” • Master storyteller Kendall Haven will weave current climate science with classic elements of storytelling to reveal how scientists solved the great Greenland Ice Sheet Mystery. • Wayne Hunt, principal of Hunt Design Associates, will shed light on the often misunderstood but culturally integral topic of branding. • Discovery Factual Networks executive Jane Root will explore the whys and hows of making science sexy for television. • Richard Sorensen, a leading expert on the Tax Exempt Trust and other forms of charitable planning, will outline strategies and techniques for developing a planned gift program in line with your organization’s needs. As a special bonus, the ASTC Annual Banquet (scheduled this year on Saturday evening) will feature “POLAR-PALOOZA,” a preview of a National Science Foundation– and NASA-supported education and outreach tour on polar research that will launch simultaneously October 18 at the San Diego Museum of Natural History, the Reuben H. Fleet Science Center, and the Birch Aquarium at Scripps. This energetic, fast-paced afterdinner presentation, richly illustrated with high-definition video clips, evocative soundscapes, and authentic artifacts, will be introduced by Andy Revkin, award-winning environment reporter at the New York Times and author of The North Pole Was Here: Puzzles and Perils at the Top of the World. Also featured on the program are the following International Polar Year scientists and associates: • Waleed Abdalati, head of the Cryospheric Sciences Branch at NASA Goddard Space Flight Center • Alberto Behar, NASA/JPL engineer and developer of robots that record the working of “ice streams” in Antarctica and “moulins” in Greenland • Richard Glenn (via video), geologist, whaling captain, Inupiat community leader, and board member of the ASTC Dimensions Among the featured speakers scheduled for ASTC 2007 are neuroscientist Antonio Damasio, left, and exobiologist Darlene Lim. Photos, left, by Phil Channing and, right, courtesy Darlene Lim Arctic Slope Regional Corporation • Darlene Lim, exobiologist, SETI Institute, Mountain View, California • Stephanie Pfirman, oceanographer and professor at Columbia University’s Lamont-Doherty Earth Observatory, New York. For updated information on ASTC 2007 and a downloadable registration form, visit www.astc.org/conference. Discounted “early bird” registration closes on August 10. Wanted: Tomorrow’s Museum Leaders D uring March 2007, ASTC and the Noyce Foundation carried out a study to inform plans for a program that would identify, prepare, and support the next generation of science center leaders. Among its findings: • Most CEOs have come from science centers (21%) and other museums (18%) or nonprofits (20%). Another 16% worked previously in education. • 48% of current CEOs have been in their jobs for 5 years or less. • Among smaller institutions (operating budgets <$2.5 million), 38% have CEOs who have been in their jobs for a decade or longer, compared with 26% at larger centers. • 11% of current CEOs have MBA degrees, compared with 1% of their predecessors. The number with PhDs is down to 19%, compared with 34% of their predecessors. • 92% of CEOs surveyed and 100% of board members reported that they do not have a formal succession plan. • The number of female CEOs has increased from 34% to 54% overall; among institutions with budgets <$1 million, 74% of current CEOs are women. We asked CEOs what kinds of professional development would have helped them most around the time they assumed their positions. Answers included managing people and fostering teamwork (37%); finance (26%), and governance issues and board relations (22%). Both CEOs and board members expressed strong support for a leadership development program. A task force headed by ASTC Fellows and retired CEOs Alan Friedman and Sheila Grinell will work with the Noyce Foundation in coming months to develop plans for a leadership development program. The ASTC Board of Directors endorsed the project at its recent meeting in Chicago. A vision is emerging of a highly effective, widely recognized, and multifaceted program focused on both creating a deep pool of well-trained executive directors and senior managers for the field and supporting newly hired executive directors once they are in place. For the full report of the study, contact Wendy Pollock, wpollock@ astc.org. • July/August 2007 17 Not Just a Game P layed by groups around the world, DECIDE (www.playdecide.org) is a debate game designed to engage citizens more directly in discussion and decision making around science and technology issues and/or policies that affect their lives. Based on this model, a game about global warming has been developed for ASTC’s IGLO initiative by Claire Pillsbury of Chabot Space & Science Center, Oakland, California. It is currently being tested for local adaptation by museum participants in Italy, Portugal, Australia, India, South Africa, and the United States. On October 4, the Global Warming Game will be featured as part of an “International Conversation on Global Warming,” a joint project of IGLO, the Yale School of Forestry and the Environment, and ICLEI, an international association of local governments committed to sustainable development. Results will be discussed at the 5th Science Centre World Congress, hosted by the Ontario Science Centre, June 15–20, 2008. To participate in the October 4 event, contact Walter Staveloz, wstaveloz@astc.org. ExhibitFiles Nears 200 Members L aunched in April, ExhibitFiles (www.ExhibitFiles.org) registered its 184th member on May 31. Practitioners from all museum fields and all nations are welcome to join the National Science Foundation–funded ASTC site. Among the exhibition case studies posted so far by the online community are old favorites, such as Psychology and Greenhouse Earth, and current offerings, like Plants Are Up to Something, the Huntington Library and Botanical Gardens’ 2007 winner of AAM’s “Excellence in Exhibitions” competition. Registrants are welcome to post exhibition reviews as well, or to add their own comments to reviews and case studies. ■ 18 July/August 2007 • ASTC Dimensions Spotlights By Christine Ruffo An elaborate climbing structure welcomes visitors to the newly expanded Boston Children’s Museum. Photo courtesy Boston Children’s Museum OLD, NEW, AND GREEN—On April 14, the Boston Children’s Museum opened its expanded 73,000-square-foot facility along Boston’s historic waterfront. The institution’s renovated 19th-century wool warehouse and adjacent new building feature an array of permanent exhibitions focused on science, culture, the environment, health and fitness, and the arts—with an emphasis on local influences throughout. Boston Black: A City Connects illustrates the diversity of Boston’s Black community. Visitors can decorate a Haitian parade float for the AfroCaribbean Carnival, catch up on neighborhood news at John Smith’s Barber Shop, or dance the funana at the Cape Verdean Café Fogo. Boats Afloat allows children to explore the urban marine environment. Guests can launch boats, build barges, and even change the tides in an 800gallon, 28-foot replica of the Fort Point Channel. Local performance troupes have partnered with the museum to create interactive experiences. In Air Play, visitors can try to make music on PVC instruments the way Blue Man Group does, and City Stage, a professional company specializing in educational children’s theater, gives daily performances of original, participatory plays in the museum’s new 160-seat KidStage theater. Elements of sustainable design qualify the new facility for the U.S. Building Council’s LEED Certification. These include a 6,400-square-foot green roof installed with the help of guest scientists and visitors, a stormwater reclamation system to prevent polluted runoff into Boston Harbor, and HVAC controls that measure carbon dioxide to determine the exact amount of heating and cooling needed for every area of the building. The final phase of the project, the park that will connect the museum to the waterfront, will open in September, featuring mazes, giant boulders, and an adventure garden of New England flora. The $47 million expansion and renovation project was designed by Cambridge Seven Associates and Michael Van Valkenburgh Associates. Details: Rick Stockwood, director of public relations, stockwood@ bostonchildrensmuseum.org THE OLD WEST—The Ancient Americas, a permanent exhibition that opened March 9 at Chicago’s Field Museum of Natural History, invites visitors to explore pre-European societies of the western hemisphere. The 19,000-square-foot exhibition features both artifacts and interactive exhibits in seven galleries. Ice Age Americans immerses visitors in an animated scene depicting the sights and sounds of the northern Illinois landscape 13,000 years ago. Hands-on exhibits include replicas of mammoth and mastodon teeth, as well as spear points devised by the Clovis people to hunt the giant mammals. The disappearance of large animals meant the beginning of cultural diversity in the Americas as different peoples spread out across the continents in search of food. In Innovative HuntersGatherers, visitors can explore a “food wall” to learn the origins of presentday foods, like tomatoes, corn, and chocolate. In Farming Villagers, they can see how agriculture led to the development of permanent villages. A walk-through pueblo home provides a glimpse of daily village life. Gradually, cultures transitioned from egalitarian to stratified societies. In New Style of Leader, a computer station lets visitors “fly over” ceremonial sites of the Midwestern, mound-building Hopewell people, zooming in to investigate chosen locations in greater detail. Displayed here are luxury items developed as status symbols for leaders. Eventually, larger and more complex settlements appeared in Mesoamerica and the Andes. Visitors to Rulers and Citizens can examine a fragment of stone with Maya glyphs and push a button to hear a modern-day Mayan speaker read the text. Empire Builders takes visitors back to the powerful, but short-lived Aztec and Incan empires. Models of marketplaces and interactive maps of roads and canal systems demonstrate the importance of trade in these vast empires. Finally, in The Conquest and Beyond: Living Descendants, videos explore present-day native communities’ connections to the past, as well as new traditions they are creating for future generations. Major funding for the exhibition was provided by the McCormick Tribune Foundation, Mr. and Mrs. Michael W. Ferro, Jr., Mr. and Mrs. Miles D. White, the Abbott Fund, and the ITW Foundation. Details: www.fieldmuseum.org/ ancientamericas Visitors can virtually piece together fragments of replica pots to learn more about farming cultures in The Ancient Americas. Photo by Christine Ruffo THE VERY OLD DOMINION— What did Virginia look like millions of years ago? The Virginia Museum of Natural History (VMNH) invites guests to explore the commonwealth’s past through today’s science at its new facility in Martinsville. The design of ASTCASTC Dimensions • January/February Dimensions • July/August2007 2007 Gracing the new Piedmont Great Hall of the expanded Virginia Museum of Natural History is a 14-million-year-old baleen whale skeleton recovered from a Virginia quarry. Photo courtesy VMNH the 89,000-square-foot expansion, which began its rolling opening on March 28, allows visitors to observe the museum’s eight scientist-curators at work and then step into the role of scientists themselves through interactive exhibits. Visitors enter the museum though the Piedmont Great Hall, home to a suspended 14-million-year-old baleen whale skeleton unearthed in a Virginia quarry. Three working labs are visible from the Great Hall—the vertebrate paleontology lab, where VMNH scientists prepare vertebrate fossils; the archaeology lab, where bones and artifacts are catalogued; and the scanning electron microscope lab, where researchers can view artifacts in minute detail. The next gallery, Uncovering Virginia, features re-creations of six research sites where museum scientists have worked, complete with fossils and artifacts from 300 million years ago to 300 years ago. Each recreation includes a lab experience in which visitors can examine and interpret archaeological evidence using the same tools as the scientists; they can also view video animation of animals and plants from each particular era and place. Other planned permanent exhibitions include How Nature Works: Rocks and How Nature Works: Life. To coincide with this year’s 400th anniversary of the founding of Jamestown, the first permanent English colony in North America, VMNH developed a traveling exhibition, Beyond Jamestown: Virginia Indians Yesterday and Today. Running through January 2008, the exhibition examines Virginia history from the perspective of the region’s native peoples. Also on display are contemporary beadwork, leather craft, pottery, and drawings by Virginia Indian artisans. The Virginia Museum of Natural History is a state agency under the supervision of the Secretary of Natural Resources. Major funding for the $28 million project was provided by the Commonwealth of Virginia. An ongoing $5 million capital campaign by the museum’s foundation will fund new permanent exhibitions. Details: Ryan Barber, director, marketing and external affairs, Ryan.Barber@vmnh.virginia.gov BACK FOR A BOW—Does your museum’s storage area bulge with beloved exhibits you can’t bear to discard? Do nostalgic visitors constantly ask you, “Whatever happened to ...?” In Texas, the Fort Worth Museum of Science and History has brought back some of its classic crowd pleasers in a temporary, 5,000-squarefoot exhibition, Stories from the Attic: 65 Years of Exhibitions. The museum, which recently broke ground for its new Ricardo Legoretta– designed building scheduled to open in 19 19 2009, wanted to give long-time area residents an opportunity to remember their earliest experiences at the museum and share them with their families. Highlights of the exhibition include Astrid, the “transparent woman,” whose circulatory and nervous systems light up with the push of a button; a pair of fighting Allosaurus and Camptosaurus skeletons; the 100-pound Blue Mound meteorite found in Texas in 1979; and minerals that glow under ultraviolet light. Complementing the popular artifacts are stories of real people influenced by early visits to the museum. Among them are researcher Wann Langston, widely considered to be the father of Texas paleontology, and nature artists Stuart and Scott Gentling, who first saw a book of John J. Audubon’s paintings at the museum. Stories from the Attic will remain on display through September 3. Details: Margaret Ritsch, director of public affairs, mritsch@fwmsh.com ■ ”Astrid,” a transparent mannequin first introduced in 1964, makes a return appearance in Stories from the Attic. Photo courtesy Fort Worth Museum of Science and History Grants & Awards As part of A.G. Edwards’ “Nest Egg Knowledge for Kids” program, the U.S. brokerage company has awarded $25,000 to Explorium, Lexington, Kentucky, to teach financial literacy to local 4th graders. The science center, in partnership with Junior Achievement of the Bluegrass, will work with teachers to help students understand the basics of earning, budgeting, spending, and saving money. Conservation grants awarded in 2007 by the Institute for Museum and Library Services, Washington, D.C., include the following to ASTC members: • Bishop Museum, Honolulu, Hawaii: $28,447 for conservation treatment of three historic Hawaiian feather cloaks (‘ahu ‘ula). • Field Museum, Chicago, Illinois: $131,794 to treat a collection of Chinese rubbings. • Newark Museum Association, Newark, New Jersey: $33,000 to purchase and install new storage cabinets to rehouse the museum’s ceramics and glass collections. • Peabody Museum of Natural History, Yale University, New Haven, Connecticut: $100,353 to purchase and install 40 museum-quality storage cabinets to rehouse collections of microscope slides in its Invertebrate Zoology, Vertebrate Zoology, Paleobotany, and Mineralogy Divisions. 20 People July/August 2007 • ASTC Dimensions Recent appointments at the Museum of Science, Boston, include Richard Y. Blumenthal as senior vice president and publisher of the National Center for Technology Literacy, and Emily Bottis as director of interactive media. Bottis was most recently manager and designer of the museum’s web sites, and Blumenthal was previously manager of K–12 product development at The Princeton Review. ■ ■ ■ ■ ■ Christopher Reich, director and CEO of the Putnam Museum and IMAX Theatre, Davenport, Iowa, since 1996, resigned in February to accept a position as senior grant program specialist with the Institute of Museum and Library Sciences, Washington, D.C. Succeeding him as CEO is Mark Bawden, a 22-year veteran of the museum’s board of trustees. ■ ■ ■ ■ ■ After 23 years at the Fort Worth Museum of Science and History, director of visitor programs R.L. “Chip” Lindsey left in April to take up a newly created position as associate director of the Don Harrington Discovery Center (DHDC), Amarillo, Texas. He joins new DHDC director Joe Hastings, who was most recently director of Science Station, Cedar Rapids, Iowa. ■ ■ ■ ■ ■ SciTech Hands-On Museum, Aurora, Illinois, announces the appointment of Shawn Carlson as executive director, effective June 1. Carlson, a 1999 MacArthur Fellow honored for his contribution to informal science education, founded the nonprofit Society for Amateur Scientists (www.sas.org) in 1994 and has served as a regular columnist for Scientific American magazine. He replaces Ronen Mir, who returned to his native Israel to become deputy director of MadaTech, in Haifa. ■ ■ ■ ■ ■ Effective June 1, Stephanie Ratcliffe is the director of the Wild Center/Natural History Museum of the Adirondacks, Tupper Lake, New York. Ratcliffe, who worked previously at the Maryland Science Center, had served on the museum’s exhibition development team for the past five years. She succeeds Elizabeth M. Lowe, who left to become head of New York State’s Department of Environmental Conservation, Region 5. Association of Science-Technology Centers 1025 Vermont Avenue NW, Suite 500 Washington, DC 20005-6310 Address Service Requested Gretchen Jennings, director of education for interpretation and visitor experience at the National Museum of American History, retired in April after 15 years with the Smithsonian. A former editor-in-chief of the Journal of Museum Education, she will take over this fall as editor of the National Association for Museum Exhibition’s journal, The Exhibitionist. ■ ■ ■ ■ ■ We join with the Ann Arbor Hands-On Museum, Ann Arbor, Michigan, in mourning the death of University of Michigan physics professor, National Medal of Science winner, and longtime museum volunteer H. Richard Crane. A lifelong tinkerer, Crane, who died April 19 at age 99, wrote the “How Things Work” column for The Physics Teacher journal while teaching at Michigan; after retiring, he became a regular at the museum, building and repairing many exhibits and even writing a book, How to Build It and Keep It Working. An April 21 Ann Arbor News obituary quotes the museum’s founding director, Cynthia Yao, on the subject of Crane: “He reveled in the knowledge that kids enjoyed the exhibits so much,” she said. ■ Non Profit Org. U.S. Postage PAID Washington, D.C. Permit No. 537
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