Gravity Powered Xylophone Another look at the gravity powered xylophone which I could watch forever. Facebook Prev Article Next Article Videos Checkout these cool gadgets... Related Posts Ice + Hill + Cars + Bus = OMFG Animatronic Head (Greg Townley) from The World’s End movie How to Pack for the Apocalypse Build Your Own Solar Powered USB Charger 3 of the strangest projects DARPA has worked on Squash + Tennis = Awesomeness !
