Find out in this project where you’ll build a rubber band–powered car. Background When you stretch a rubber band it stores potential energy. Specifically it stores elastic potential energy ...

You will examine some of the fascinating physics behind hula-hooping using just a pencil and a rubber band. Background Hula-hooping is all about forces! You might not think about physics much when ...

Ever noticed that a rubber band gets warmer when it’s stretched? The bands also get cooler when allowed to snap back to relaxed length? [Ben Krasnow] noticed, and he built a rubber band cooled ...

How much energy can you store in a rubber band? Obviously, the answer depends on the size of the rubber band. I'm talking about, of course, the energy density or specific energy of an energy ...

Now 21 years old, Bendek is the CEO of a company called Elastic Energy, which takes that rubber tree sap and makes an elastic band into the main fuel source for the battery, which weighs about 200 ...