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The Sciences

Feynman's Character of Physical Law Lectures

Cosmic VarianceBy Sean CarrollJuly 16, 2009 10:12 PM

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Everyone and their niece is emailing me that I should post these. (And Aatish in comments.) And a good thing, too, because it usually takes at least half a dozen emails before I will do anything at all. In 1964, Richard Feynman gave the Messenger Lectures at Cornell, aimed at a general audience. They were later collected into The Character of Physical Law, a great little book with a depressingly boring cover. Feynman-worship is often overdone, but man, the guy could lecture. And he knew a lot about physics! The good news is that Bill Gates has now put the full video of the lectures online, as part of Project Tuva. I had to update some software to view them on my Mac, but it seems to be working now.

feynman-lecturing.jpg

Lecture Five is about the arrow of time. If you skip ahead to the 18th minute or so, you'll hear Feynman explain the Boltzmann Brain argument.

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