Sunday, July 31, 2011
Surfing For Stress Relief?
James asks…Is it possible for sound to become energy?Is it possible to invent a machine that converts sound into usable energy. Like if you yell into it (stress relief yell), the machine could use the sound of the yell and convert it into usable energy to like run a light bulb.Nancy answers:Of course you can! Machines that convert sound energy into electricity have been in use for over a century. They're called microphones.Paul asks…Two part question. What are some things that cause you
