this post was submitted on 07 May 2024
909 points (98.6% liked)

xkcd

8632 readers
1 users here now

A community for a webcomic of romance, sarcasm, math, and language.

founded 1 year ago
MODERATORS
 

https://xkcd.com/2929

Alt text:

While it seemed like a fun prank at the time, I realize my prank fire extinguishers full of leaded gasoline were a mistake.

you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 1 points 6 months ago (1 children)

They work based on UV light. So they will not transition inside cars. They also will not transition in cold weather, so you'll walk in snow with clear glasses and have dark ones for 5 minutes once you go inside.

[โ€“] [email protected] 2 points 6 months ago

Never had them not work in cold. They change even during heavy snowfall when it's well below freezing and well, no sun, heavy clouds. It's great because they help with the glare from snow.