Lexica (lexica510) wrote,
Lexica
lexica510

It's having everyday things explained that can blow your mind

This video of Richard Feynman just blew my mind.



For as long as I can remember, I've known that water expands when it freezes. When I got to junior high physics, I learned that water is the only thing we know of that expands when it gets colder. And at some point, I forget when, I read about how ice skates work.

But to have Feynman say, "water expands when it freezes, so the pressure tries to undo the expansion and melts it" and get that Oh? Oh. Oh! feeling...

And of course, when I start googling it at all, I find that apparently our understanding has moved on since then.

Science is COOL!
Tags: science, video
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