flywheels, Tag

It seems unlikely that flywheels would last more than a few years, certainly not without plenty of maintenance. Either way, the cost of flywheels would be considerable.

This is a guest post by Tom Murphy. Tom is an associate professor of physics at the University of California, San Diego. This post previously appeared in Tom's blog at Do the Math. The recent city-wide power outage in San...

Fast food lovers may finally feel a little less guilty about getting greasy burgers. One New Jersey Burger King recently equipped its drive-thru with a speed bump that harvests electricity from cars that pass by. The speed...