47:25duration 47 minutes 25 seconds
BB_2015_11_19
01:01:20duration 1 hour 1 minute
BB_2012_11_15
01:02:32duration 1 hour 2 minutes
BB_2008_03_27
53:54duration 53 minutes 54 seconds
BB_2005_01_13
07:01duration 7 minutes 1 second
MD1_M4_modulus_of_elasticity.mp4