Re:Units! (Score 1)

So the answer the poster was looking for was each car generates 2.778 watt hours (in theory), although the system that returns the ramp to the original position is also getting powered by this. I'd guess the results they are getting of 500-800 watts or 0.222 watt hours per car is going to be not too short of the best they'll do. At this rate you'd need 450 cars per hour for a single 100 watt bulb (with loads of other 100% effeciency simplifications assumed).