Science Memes

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submitted 8 months ago by [email protected] to c/[email protected]

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[–] ChickenLadyLovesLife 5 points 8 months ago (3 children)

Seems a bit weird that every culture would call them some variant of "stars" since they don't look like actual stars. Actual stars are just dots.

[–] xkforce 11 points 8 months ago (1 children)

Spikes on star image

[–] FuglyDuck 1 points 8 months ago (2 children)

For clarification, the lines are caused by the mirrors’ edges, and the cross hatch pattern common on street lamps in pictures comes from a filter (or scratched lenses/other filters.)

With your normal eyeballs, it comes from defects like cataracts.

[–] angrystego 1 points 8 months ago

You don't need defects in your eyes to see it. All you need to do is to close your eyes slightly and look through your eyelashes. The light refracts on the lashes and creates a star-like pattern.

[–] Pipoca 3 points 8 months ago

They particularly look like diffraction spikes/starbursts.

Astigmatism, cataracts, glaucoma or smudged glasses can cause you to see starbursts when you look at bright lights at night.

[–] [email protected] 2 points 8 months ago (1 children)

I must assume all people who name things have astigmatism.

[–] ChickenLadyLovesLife 2 points 8 months ago* (last edited 8 months ago) (1 children)

Surely whoever named astigmatism had astigmatism.

[–] [email protected] 1 points 8 months ago

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