Launch 1,500 Ping Pong Balls into the Air with a Homemade Liquid Nitrogen Bomb « Mad Science :: WonderHowTo
This is what 500+ ping pong balls look like! What do they have to do with cancer immunotherapy? You will have to wait for this year's MRC Festival to... | By MRC
500": The Astounding Light painting project with 500 table tennis balls using black light via Marcel Schindler | Light painting, Painting projects, Blog photography