What is the sound of an ambulance siren changing pitch when it moves towards and away from you known as?
Correct answer: Doppler effect

tinabobina
learned this in high school and today is the first time it's been useful!! 😋

Giant Midget
sheldon cooper comes in useful again.

Player #21157266
Thanks Big Bang

aliahli kiomi chan
who else here is hard core BIG BANG FAN. HIT like🤪

Barnowl
doppler effect radar can "see" down bursts during storms for this reason

Player #8988878Xet
The same thing happens with 'light waves'...in space..blue moving towards 'you'...red moving away...per se'...

Player #10639782
I am sensitive to sounds so hearing any siren is painful for me

Poekneegurl
tinabobina, yes...also used in weather forcasting... storms...

Ducky
thank you Big Bang Therory 🥰

Player #48458
funny cause I had a fire truck come by on the street and it was just like you described

Mars V
Thanks, high school science class!

Pip
Ducky, 😂

Pip
tinabobina, not everything you learn in school is “useful” in later life but it shapes your brain and understanding more than you think! 😉

Mars V
aliahli kiomi chan, The early seasons are really good. It gets tiresome later on.

Sassy
Sheldon cooper dressed as the Doppler effect for a costume party

Gunnar Gunderson
aliahli kiomi chan, Makes a great Halloween costume!

Val
Lol, I learnt this on The Big Bang Theory. Thank you Sheldon! :D

Deborah
I think a lot of people got the correct answer to this thanks to watching The Big Bang Theory on TV.

Roma
Thought it only had to do with weather.

Player #10768381
I love the siren sounds it’s so weird. Sorry guys

Player #10768381
I love the serene sounds coz I’m alert of what’s is coming. Sorry folks!

Player #5100533
I always heard it was a motorcycle not an ambulance. Kinda threw me off a little. Next thing you know, they'll be saying its how they track storms or something crazy like that???

brownidol
Giant Midget, that's how I remembered it.

Player #8988878Xet
whitefalcon6266t, Dude! what were you smoking and did you bring enough for everybody!!!

emmiewhyard
this somewhat reminded me of interference pattern in quantum mechanics.