Mythbusters: Season 2, Episode 9 - ProjectFreeTV

2 - 9: Explosive Decompression, Frog Giggin', Rear Axle

In this episode, Jamie and Adam test: -If a sunken boat can be lifted only with ping-pong balls (lots of ping-pong balls, in fact). -The "Mythbuilder" team tests the classic myth of the kid that picks a bunch of balloons and is lifted off the ground. How many balloons are needed to lift a 4 year child off the ground?