2018-01-08 19:42 thomas.godart "This Particle Breaks Time Symmetry" This Particle Breaks Time Symmetry play_circle_filled YouTube https://youtu.be/yArprk0q9eE labelVeritasium check_box_outline_blank labelinteresting check_box_outline_blank labelphysics check_box_outline_blank labelscience check_box_outline_blank