[Video Link] From Neatorama: "FlippyCat assembled 60 walls, each consisting of 990 dominoes, and an additional field of 600 dominoes. The project took 65 hours over 8 days and some painful failures along the way. But when he finally pushed it over at 0:55, he made a beautiful cascade of color and sound."
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects