physics 20b. cosmology. lec. 1: introduction to cosmology Published 9 years ago • 35K plays • Length 50:21 Download video MP4 Download video MP3 Similar videos 1:08:59 phys 550 lecture 1: biomolecular physics - introduction to biomolecular physics 1:16:14 biophysics 401 lecture 2: boltzmann, free energy, equilibrium constant