viqar husain: shell crossings and shocks during gravitational collapse in effective lqg - loops'24 Published 5 months ago • 34 plays • Length 42:52 Download video MP4 Download video MP3 Similar videos 3:42 clamor of gravitational waves from universe's merging supermassive black holes heard for first time 3:39:14 physicist debunks big bang! abhay ashtekar's quantum loops 8:35 solution to #101 - contracting sphere 6:46 what are wormholes? connecting two points in spacetime