The MIT sound-absorbing silk is a new and exciting innovation.

"MIT researchers developed a silk fabric, which is barely thicker than a human hair, that can suppress unwanted noise and reduce noise transmission in a large room. Credit: MIT News; iStock" (ScitechDaily, The Future of Silence Is Here: MIT’s Noise-Canceling Silk)

One of the newest practical innovations. Is sound-absorbing silk by MIT. Those kinds of materials are classified. The chemical compounds of them are not public. And they involve very interesting nanotechnology. The thing that makes this nanotechnology interesting is that the elastic and flexible structure can deny the noise. 

It is possible to make the 2D material structure like a non-linear graphene where the ball-shaped molecules jump between the walls of the nanotubes. That system's purpose is to pull energy out of the structure. The non-linear nanotubes conduct sound to the structure. The non-linear nanotubes mean that the graphene molecules are not in line. However, the MIT invention is elastic. And that means any structure can be covered by it. 

"MIT researchers have developed a silk fabric that suppresses sound using vibrations, offering two techniques: canceling noise through interference and preventing its transmission." (ScitechDaily, The Future of Silence Is Here: MIT’s Noise-Canceling Silk)

The nanotechnology behind the silk makes the structure the acoustic Faraday gage. In those models, the structure makes standing acoustic waves that travel into the fabric. It's possible. The structure in the fabric makes the acoustic fall that aims incoming waves at the strings. The side-coming waves pull energy out from incoming waves that attempt to travel through that silk. 

These kinds of innovations are tools that can revolutionize airports. The acoustic silk can deny or make the jet engine noise lower. The lightweight sound insulators can also in vehicles to make their noise lower. If that kind of acoustic silk is around the engines like turbines it can decrease the sound of the engine. That kind of silk can also used in face masks that allow the users to talk into the microphones and radios. But those systems deny outsiders to hear what those people say without technical devices. 

 Another thing is that this kind of effective, lightweight, transportable system can decrease the noise of the building sites. Make meetings more secure because people cannot hear things that meeting participants say. And that acoustic silk can protect places like band rooms so that neighbors don't hear the noise.