Leonard Susskind gives a lecture on string theory and particle physics that focuses on the mechanisms that make the universe hot. (March 14, 2011)

Leonard Susskind gives a lecture on string theory and particle physics that dives into the idea of cosmic horizons as well as the relationship between ultraviolet and infrared light. (March 7, 2011)

Leonard Susskind gives a lecture on string theory and particle physics that focuses on how string theory gives a resolution to the question regarding the entropy in a black hole. (February 14, 2011)