Sound is simply compressed air traveling in waves. See what it looks like: http://ow.ly/Zh4CX pic.twitter.com/mr7Ksl468e
4:01 AM - 10 Mar 2016
0 replies
16 retweets
15 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.