[Brian Ritchken] and [Jim Liu] made a thrust-vector controlled balloon blimp. They call this working?!?! Three balloons provide just enough lift so that the blimp can climb or descend on motor power.

Imagine you're at a hot air balloon event. The balloonists are busy preparing for flight. They spread out the enormous balloons on the grass and check all the lines. The talk is all about today's ...