Alt text:
The Doppler effect is a mysterious wavelength-shifting phenomenon which seems to primarily affect sirens, which is why the 🚨 emoji is red.
Alt text:
The Doppler effect is a mysterious wavelength-shifting phenomenon which seems to primarily affect sirens, which is why the 🚨 emoji is red.
I believe it’s this one…
https://lemmy.world/post/14868285
Are you sure you didn’t mean this one?
TIL that wasn’t actually an official one, hrm.:-|