this post was submitted on 29 Sep 2023
1603 points (99.0% liked)

Memes

45730 readers
1399 users here now

Rules:

  1. Be civil and nice.
  2. Try not to excessively repost, as a rule of thumb, wait at least 2 months to do it if you have to.

founded 5 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 19 points 1 year ago

They are so fucking cool. If I had the money, I'd have a room that's just these gems+blacklights. There are some that change color based on the wavelength of UV light they're exposed to. Some glow a different color under UV than they do under normal light. Some are both fluorescent and phosphorescent, meaning they light up in response to UV, but then they can maintain their glow temporarily. Some change color based on the angle you view them at. They're so fucking cool.