A swinging pirate ship ride at a theme park. Kinetic energy is transferred into gravitational potential energy. Doing 'work' is the scientific way of saying that energy has been transferred. For ...
April 10, 2009 The United States has about 250 million registered vehicles, which adds up to a lot of pollution and burning of fossil fuels. New Energy Technologies, Inc. prefers to look at it another ...
Source: NOVA: "Secrets of Lost Empires II: Medieval Siege" This media asset was adapted from NOVA: "Secrets of Lost Empires II: Medieval Siege" In medieval times, one of the most fearsome weapons was ...
Gravia, a gravity based kinetic energy lamp concept, wowed our panel judges and the crowd at the Greener Gadgets Conference, earning a second place accolade in the design competition. Created by Clay ...
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