Science Memes

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School is just one simplification after the other (sh.itjust.works)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 15 points 1 year ago (2 children)

Did the same thing to a science teacher when they said, "light only travels in a straight line" thing. It DOES only travel in straight lines, but refraction is a thing, and geodesics are never perfectly straight.

[–] [email protected] 22 points 1 year ago

Bonus, it only travels through a straight line through curved space, so to an outside observer the light did curve.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

When talking about normal refractions, it can be argued that thoose are still two peices of straight lines just like reflections.

But there was some experiment which light bends in curved path in a solution of varying concentration from top to bottom. So there was a gradient of optical density(higher at bottom) and caused smooth curving of light

Edit: Oh it was just sugar solution http://physicsed.buffalostate.edu/pubs/StudentIndepStudy/EURP09/Sugar/sugar.html

Edit 2: Found this too which is much better demo https://m.youtube.com/watch?v=rnNjV3fh-4M