I love physics, and I love high-speed cameras, and this video combines both of those into one demonstration of how you can recapture energy normally wasted in braking. It’s the concept of regenerative braking, and it essentially takes energy that is normally dissipated during braking (in cars, trains, etc) and harnesses it to be used again. GE calls it dynamic braking and focuses on its use in trains, but it’s commonly used in hybrid vehicle designs as well. The video doesn’t address any technical parameters, but it’s still interesting and informative.
Found via FlowingData [original article]