3 ms·
I thought it was already routinely used by electric trains (http://en.wikipedia.org/wiki/Regenerative_brake http://en.wikipedia.org/wiki/Regenerative_brake)
by ithkuil 16y ago
I thought it was already routinely used by electric trains (http://en.wikipedia.org/wiki/Regenerative_brake http://en.wikipedia.org/wiki/Regenerative_brake)