We must promote this hosue@@!!!

That's pretty awesome. The concept of storing the energy that you lose when braking is a really cool insight. Shame about the weight though. I suppose you could make it lighter and spin faster?..

He does seem to be all that and a bag of chips. I bet he gets work quick.

I bet it's a bitch to turn on this bike. http://en.wikipedia.org/wiki/Angular_momentum

Also 3 days later this guy was found dead with a petroleum covered fingerprints all over this apartment.

16 more comments have been lost in the ether at this killed duplicate.

He went through the entire vid without mentioning Williams Hybrid Power, the spin-off from the flywheel storage developed for the Williams F1 car in 2008/2009:



Unfortunately it couldn't be scaled up to the increased KERS output required for the 2011 season, at least not in a way that fit in an F1 car, so Williams now run the same electric KERS as everybody else. The flywheels are used in other racing series and in road cars though, as mentioned in their vid.

One very obvious difference between the prototype bicycle system in this vid and the WHP version is that they are using relatively lightweight composite flywheels and then spinning them to speeds that would tear apart the car flywheel from this vid, typically 20,000 to 50,000 rpm. This greatly increases the amount of energy storage available which increases linearly with mass, but with the square of rotational velocity.

http://rpm2.8k.com/basics.htm