Scientist Is Nearly Hit By Wrecking Ball To Prove Basic Law Of Physics - Video

The law of conservation is simple enough, stating that energy can not be destroyed, only changed. Physicist Andreas Wahl demonstrates the law in this daring science experiment in which he lets go of a giant wrecking ball by his face and let it swing back at him. Even if you fully understand the science, it can still be very intimidating to let a giant wrecking ball swing right at you.