this post was submitted on 03 Apr 2025
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Science Memes

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shrimp colour drama (mander.xyz)
submitted 3 weeks ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 3 weeks ago* (last edited 3 weeks ago) (3 children)

We don’t really detect direction of light exactly. Instead we detect the location in the eye where the light landed, and have lenses to focus the light onto our retina. That relationship does imply some of the directionality of the light, by ignoring light that goes in certain directions and relating the direction of light that does get detected to the location it ends up.

[–] [email protected] 20 points 3 weeks ago (1 children)

By the same logic, we don't detect light, just the change in shape of certain proteins. The sky isn't blue, it's a subset of sunlight. We don't really touch things, we transmit forces with tiny magnets. Computers don't really do math, they just arrange states in certain ways.

[–] [email protected] 7 points 3 weeks ago

The world ~~is beautiful~~ makes my brain release endorphins

[–] [email protected] 4 points 3 weeks ago

Yeah I was trying to avoid those details. I think it’s fair to summarize that as a system that detects the direction light is coming from.

[–] [email protected] 3 points 3 weeks ago (1 children)

*we detect the direction of light by the location in the eye....ect.

There fixed it for you.

[–] [email protected] 3 points 3 weeks ago* (last edited 3 weeks ago)

ect.

etc. It stands for the Latin words et cetera.

You haven't been saying ectcetera have you? Oh no.

Correctors better come correct.