Just watched a Nova documentary called
Absolute Zero. I think they only showed half of it though, because it stopped at the invention of air conditioning. Still, very VERY cool stuff about the history of the evolving science of temperature, and I finally kind of understand how refrigeration works, which is a concept I've been trying to wrap my brain around for ages (eg: I knew it involved "removing heat" but I didn't get how it was accomplished, and this explained it).
I know I'm a total dork, but you give me a show that explains how a particular machine works and I'm all ears. Throw in a little history on the evolution of the science and I'm yours forever, or an hour, however long the documentary lasts
