I just posted a new episode of Science Teaching Tips — Running Hot and Cold. Thomas Humphrey is one of the smartest people I know (he’s a staff physicist at the Exploratorium, and studied under Richard Feynman at CalTech). Here, he talks about what temperature and color have to do with one another, and how this helps us figure out things about the world. I must say, the first time I heard him explain this was one of the first times I really got what blackbody radiation was all about, and what that T^4 term in those big ol’ equations really meant.
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