For every action there is an equal and oppostite reaction.  Well...there are a lot of actions in the world...why not hook some of those reactions to a generator.  Decentralized passive power production...I think that's what it should be called.  J.R. East (the biggest railway company in Japan who we've already heralded for their hydrogen hybrid trains) hooked up a generator to the turnstiles of their railway stations and I call that awesome.  I mean, why not capture energy wherever we can. 

Now, I can't imagine it will add up to much, but if everything we do, from clacking a key to tapping a foot generated power, we might need a few less solar panels on the roof. 

The concept is currently being tested at their office, where you apparently have to walk through a turnstile to approach the receptionist.  Railway office...turnstile...ahh Japan...so cute...

 

Via TreeHugger