Spiders are master builders, expertly weaving strands of silk into intricate 3D webs that serve as the spider’s home and hunting ground. If humans could enter the spider’s world, they could learn about web construction, arachnid behaviour and more.
Scientists report that they have translated the structure of a web into music, which could have applications ranging from better 3D printers to cross-species communication and otherworldly musical compositions.
“The spider lives in an environment of vibrating strings,” says Markus Buehler, Ph.D., the project’s principal investigator. “They don’t see very well, so they sense their world through vibrations, which have different frequencies.” Such vibrations occur, for example, when the spider stretches a silk strand during construction, or when the wind or a trapped fly moves the web.
Buehler, who has long been interested in music, wondered if he could extract rhythms and melodies of non-human origin from natural materials, such as spider webs. “Webs could be a new source for musical inspiration that is very different from the usual human experience,” he says.
In addition, by experiencing a web through hearing as well as vision, Buehler and colleagues at the Massachusetts Institute of Technology (MIT), together with collaborator Tomás Saraceno at Studio Tomás Saraceno, hoped to gain new insights into the 3D architecture and construction of webs.
With these goals in mind, the researchers scanned a natural spider web with a laser to capture 2D cross-sections and then used computer algorithms to reconstruct the web’s 3D network.
The team assigned different frequencies of sound to strands of the web, creating “notes” that they combined in patterns based on the web’s 3D structure to generate melodies. The researchers then created a harp-like instrument and played the spider web music in several live performances around the world.
The team also made a virtual reality setup that allowed people to visually and audibly “enter” the web. “The virtual reality environment is really intriguing because your ears are going to pick up structural features that you might see but not immediately recognize,” Buehler says. “By hearing it and seeing it at the same time, you can really start to understand the environment the spider lives in. Essentially, we can explore the temporal sequence of how the web is being constructed in audible form.”