People power is perhaps one of the world's greatest untapped sources of renewable energy. Smart devices that harness kinetic energy from everyday human activities help the environment in more ways ...

Kinetic energy is the energy of mass in motion. The kinetic energy of an object is the energy it has because of its motion. Why can't we walk through walls if atoms are mostly empty space? Physicists ...

Humanity is constantly looking at innovative technologies to help reduce our dependence on fossil fuels. Yet it’s not always the big discoveries that make the difference. Small inventions that reduce ...

Potential energy is the latent energy in an object at rest, and is one of two forms of energy. The other form, kinetic energy, is the energy expressed by an object in motion. Potential energy is a ...

Researchers at Columbia University have conducted the first exhaustive study into kinetic energy harvesting -- the harvesting of "free" energy from common human activities, such as walking, writing ...

In my previous post on the Black Arrow from The Hobbit, I looked at the speed of some real arrows shot in my backyard. Oh, in case you didn't read that post, the arrow shot in the movie version of ...

JONNY NELSON: Energy. There are lots of different types and lots of different ways of storing it. Chemical energy in a sparkler, elastic potential energy that fires a toy into the air, and many, many ...