A new type of sustainable energy!

I cam across this article posted by the Fast Thinking magazine, which grabbed my attention:

http://www.fastthinking.com.au/site/page.cfm?u=18&c=975

I always wondered if it were possible to harness all the energy expended in the gym to power something - it turns out we can! Just think - a device that you can strap to your knee that creates electricity to generate all our devices... hikers could generate enough to power a small electric stove :P

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