Next airing Thu Mar 22, 9 a.m. ET

Shock & Awe

Host Tim Shaw takes us on a road trip to show why things do what they do. He asks which gas-filled weather balloon will make the biggest bang, what happens when water pressure matches up against a steel tank, how many rubber bands can be stretched around a watermelon and which weird rocket fuel will be the most effective. Plus how to quench your thirst — with a chainsaw!