Today I Learned@lemmy.worldEnglish · 21 天前

TIL: Rainbows are actually full circles

bigthink.com

266

TIL: Rainbows are actually full circles

bigthink.com

TwoTiredMice@feddit.dk to

Today I Learned@lemmy.worldEnglish · 21 天前

Rainbows are actually full circles. A physicist explains

bigthink.com

Most of us only ever see a fraction of a full rainbow: an arc. But optically, a full rainbow makes a complete circle. Physics explains why.

I might be stupid by not knowing this, but I suddenly got an item on my bucket list.

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PrimeErective@startrek.website
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21 天前
I saw a full rainbow from a plane once. It was sick
- GreenKnight23@lemmy.world
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  I saw one in the mountains when ice crystals were floating in the air on a sunny day.
  
  it was actually a septuple rainbow.

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