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 continues the theory behind calculating the entropy of a black hole. (February 28, 2011)