I just ran across this on boing-boing, my favorite blog:
It was sent in by Lisa Katayama, a writer from San Francisco, California, whose TokyoMango Blog is here.
JR East’s new experiment consists of energy-generators under ticket wickets, a milliwatt-tracking counter, and 700,000 daily commuters. For the next two months, the railway company will be using using the vibrations of human foosteps at Tokyo Station to generate up to 100 milliwatts per second per person that walks through. The idea is to be able to generate enough electricity to power the wickets themselves and their display panels regularly.
Don’t even think about going there and stomping your feet like a maniac to fuck up their results. That wouldn’t be nice.