If you’re familiar with aerogel, you know that it’s one of the lowest–density materials on Earth. But even if you’re versed in this supermaterial’s physical properties, you’ve probably never thought about what aerogel sounds like. This video answers that question.
https://gizmodo.com/this-is-a-picture-of-the-lightest-substance-on-earth-461681135
I don’t know what I was expecting, but… it certainly wasn’t that. Even watching it a second or third time, there’s something dissonant about the sound – like somebody took out the real noise and replaced it with the metallic clinkity-clink we have here. It seems like a weird sound, for something dropped from so small a height onto (what looks like) a wooden tabletop.
H/t Motherboard