How Many Balloons Would You Actually Need To Lift a House?

Last night we reported about Jonathan Trappe, a man who's hoping to fly a tiny balloon-tethered house across the Atlantic ocean. But his Up-inspired planning would probably have been a lot easier had he access to this online calculator that lets you know exactly how many helium filled balloons you'd need to hoist your… » 11/20/12 10:27am 11/20/12 10:27am