episode 11: gravity, electricity, magnetism - the mechanical universe Published 7 years ago • 84K plays • Length 29:03 Download video MP4 Download video MP3 Similar videos 1:09:52 the future of quantum computing with michio kaku, neil degrasse tyson & more 19:59 what works did edward witten do? 29:03 episode 52: the quantum mechanical universe - the mechanical universe