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ping-pong ball

Bazooka shoots ping-pong balls at Mach speed

The magic of physics can turn the mundane into something marvelous. Mark French, a mechanical engineering professor at Purdue University, designed a supersonic air-powered ping-pong ball cannon that shoots the lightweight object at speeds so fast I would consider the device a lethal weapon of science.

A ping-pong ball reportedly blasts out of the special cannon at speeds equivalent to Mach 1.23 -- nearly as fast as an F-16 fighter jet. As evidenced in the video below, the high-speed ball can put a clean hole through a plywood paddle, a VHS tape, and other objects. The amount of energy delivered by the Mach-speed ping-pong ball equals the force of a baseball thrown at 125 mph or a brick falling from several stories up.… Read more

65,000 ping-pong balls turn pool party into cool party

Pools aren't just for swimming, you know. Brooklyn art studio Red Paper Heart made some pretty nifty art with a swimming hole and 65,000 ping-pong balls. Before you dismiss that as an exercise in lunacy, take a look at a clever interactive pool party experience for yourself in the video below.

Red Paper Heart created the mesmerizing show in conjunction with city guide Web site UrbanDaddy, all for a tequila promotional event in Hamptons, N.Y.. The art studio programmed some software (using C++) to control the projector-driven light show that reacts to music. To enhance the visuals, the group enlisted a team of synchronized swimmers and some tuxedo-clad scuba divers to class up the joint.… Read more