Tim Shaw, the man they call the street genius, takes us on a road trip to show why things do what they do. He asks which gas-filled weather balloon will give the biggest bang, what happens when water pressure matches up against a steel tank, how many rubber bands can be stretched around a water melon, and which weird rocket fuel will be the most effective. Plus how to quench your thirst - with a chainsaw. (S.2 Ep.4)
