this post was submitted on 05 Jun 2024
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Science Memes

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How you ๐Ÿ‘ rainbows ๐ŸŒˆ (mander.xyz)
submitted 5 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 45 points 5 months ago (2 children)

Alexanders Dark Band looks like they pump out some bitchin' songs.

[โ€“] [email protected] 11 points 5 months ago

I got tickets for them this weekend! Can't wait!

[โ€“] [email protected] 7 points 5 months ago (1 children)

Ironically, they're upbeat ska

[โ€“] [email protected] 2 points 5 months ago (1 children)

Ooh! Extra cheesesticks music!

[โ€“] [email protected] 5 points 5 months ago

Lmao wtf my friend just sent me that meme

For the uninitiated

[โ€“] [email protected] 27 points 5 months ago

At first, the dark band in between seems so counterintuitive, but then your realise rainbows don't create extra light, so it has to come from somewhere. Alexander's Dark Band is the empty husk left behind after a rainbow is born.

[โ€“] [email protected] 16 points 5 months ago (1 children)

That doesn't explain the gay frogs, at all.

[โ€“] [email protected] 12 points 5 months ago

So I don't know if I got a picture, but I was at a local beach right at sunset, and we had this moment where, for like just a moment, the entire valley behind us lit up with rainbows. Not a double rainbow, but like 5+ deep 'double' rainbows. It was utterly surreal.

[โ€“] zero_spelled_with_an_ecks 10 points 5 months ago* (last edited 5 months ago) (1 children)

Can somebody explain this image? If you had raindrops in only those four positions, this might make sense, but I think there are more than four static drops and thus angles.

Edit: staring at it helped. Anything that hits your eyes in a certain way comes from above a certain angle and has to have traveled and been refracted in a certain way, anything below a different angle is the opposite. Hence the opposite order to the rainbows and the difference in intensity from the difference in length of the path (which loses more light on each change in direction).

Not exactly correct, but close enough for my brain to stop trying to figure out.

[โ€“] [email protected] 7 points 5 months ago (1 children)

So how do triple rainbows work?

[โ€“] [email protected] 15 points 5 months ago (1 children)

Light bounces around and exits a raindrop in many different directions. This graphic illustrates the first(brightest) two that hit your eye, but there will be a third, fourth, etc in decreasing brightness.

[โ€“] [email protected] 3 points 5 months ago* (last edited 5 months ago)

Also, the tertiary rainbow is directly around the sun, which is hard to see because of, you know, the sun.

[โ€“] [email protected] 5 points 5 months ago (1 children)

AAAAAAA DOUBLE RAINBOW

[โ€“] [email protected] 3 points 5 months ago

All the way!