Science Bag Videos

"Why Does a Spinning Top Stop?"

Robert Greenler - Department of Physics

"I suspect a top is one of those things that wants to be invented," Physicist Robert Greenler suggests as he spins fruits and vegetables—nuts, a strawberry with a twig stuck through it, a lemon, an apple on a stick, a coconut, an acorn squash, a pumpkin—in this engaging program. It is both an explanation of Newtonian laws of motion and a celebration of human curiosity and resourcefulness.