xkcd #2926: Doppler Effect
xkcd #2926: Doppler Effect
![](https://imgs.xkcd.com/comics/doppler_effect_2x.png?thumbnail=1024&format=webp)
Alt text:
The Doppler effect is a mysterious wavelength-shifting phenomenon which seems to primarily affect sirens, which is why the 🚨 emoji is red.
4
comments
14 0 ReplyI think there's an xkcd for that topic... 🙃
spoiler
(/s in case it is not blatantly obvious)
10 0 ReplyI believe it's this one...
4 0 Reply7 0 Reply