...more I can relate to my kids." The action requires the chemical energy in the human body, from carbon molecules, kinetic energy in hands -- pushing -- and heat energy in the hanger, from bending. Kimberly Bates, a third grade teacher at...

...end will have the maximum velocity," Parsons said. "The potential energy put into stretching is converted into kinetic energy, and it's mostly stored at the end of the rubber band." Parsons said it would be difficult to calculate how much...

...inlet's tidal range of up to 12 meters -- second largest in North America -- we're talking about a huge amount of kinetic energy that could be tapped. This could be great idea for a number of reasons. First, the energy source is right there...