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)

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)

Leonard Susskind gives a lecture on string theory and particle physics that focuses again on black holes and how light behaves around a black hole. He uses his own theories to mathematically explain the behavior of a black hole. (February 7, 2011)

Leonard Susskind gives a lecture on string theory and particle physics that focuses on the geometry of a black hole near the horizon. (January 31, 2011)

Leonard Susskind uses the most complex math that will be used in the course with the hopes that it will give a better idea of how a black whole works mathematically. (January 24, 2011)

Leonard Susskind describes the special theory of relativity and focuses on showing how it connects to string theory. He considers concepts such as space-time and some of Einstein's original concepts. (January 17, 2011)

Leonard Susskind gives a lecture on the string theory and particle physics. (January 10, 2011)