light seconds, light years, light centuries: how to measure extreme distances - yuan-sen ting Published 10 years ago • 3.4M plays • Length 5:29 Download video MP4 Download video MP3 Similar videos 4:45 how do we study the stars? - yuan-sen ting 1:13 light seconds, light years, light centuries: how far are they? 17:19 the attribute of light science still can't explain 12:50 will we ever visit other stars? 6:16 einstein's twin paradox explained - amber stuver
