Physicist Richard Feynman was widely regarded as Albert Einstein's successor as the great genius of physics. In Project Tuva, Microsoft Research uses a series of very engaging general audience lectures Feynman gave at Cornell in the 1950s to try, through the lectures themselves and an accompanying toolset, to get viewers/users to not only gain a greater appreciation for and enthusiasm about science, but to "think like Feynman," whose approach to the world around him was continually exploratory and investigatory. The name of the service, "Project Tuva," comes from a small country in Central Asia, then part of the Soviet Union, now a Russian republic, that Feynman long hoped to visit, but could never get permission from the Russians to enter. Given how few at the time even knew Tuva existed, it exemplifies, in a simple way, Feynman's relentless pursuit of knowledge over the next horizon in all directions.
The service itself consists of several elements. Front and center are the lecture videos themselves. These have the usual controls associated with them, including full-screen mode. Each video allows you to choose from a menu of commenters (the default is "none") - a top physicist or a group of physics students, for example - whose main function is to make clearer what Feynman (or others) are saying in the video. For example, when it's revealed that Feynman