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jd πŸ”†

This took me a sec, but then, I’m not a physicist.
8 May 2023 at 19:56 | Open on mstdn.ca
28 comments
Cats Who Code πŸ’™πŸ’›

@jd one shift, two shift, redshift, blueshift

8 May 2023 at 20:22 | Open on mstdn.social
Eva Chanda

@calculsoberic @jd NGL I had to look at the replies for the explanation. Very clever cartoon ! Thanx, Cats Who Code!

8 May 2023 at 20:54 | Open on mstdn.ca
jd πŸ”†

@calculsoberic
Check the stub of a nose on the approaching driver vs the pinnocchio shnoz on the deperting one lol

8 May 2023 at 21:01 | Open on mstdn.ca
BlueShiftNZ
ator robot

@calculsoberic @jd i still don't understand :blobcatgrimacing:

9 May 2023 at 7:08 | Open on tech.lgbt
Ewan
HistoPol (#HP)
jordan

@jd i'm sorry this cartoon robbed you of your physicist credentials :jarden_unhappy:

8 May 2023 at 20:33 | Open on mastodon.jordanwages.com
jd πŸ”†

@wagesj45
No great loss, Jordon, since I never was one lol

8 May 2023 at 20:53 | Open on mstdn.ca
Luca

@jd I see what you did there πŸ˜‰

8 May 2023 at 21:05 | Open on troet.cafe
Widdershins Smith 🐘
Zachary

@jd I am very proud of myself for figuring it out in a minute or two. Your physicist clue helped a lot.

8 May 2023 at 21:07 | Open on social.coop
Peter Koopman 🦣

@jd
Fast car. Traveling at the speed of light.

8 May 2023 at 21:10 | Open on mastodon.nl
Bodling

@jd I had to turn the sound on before I got the joke.

8 May 2023 at 21:31 | Open on deacon.social
bee

@jd It usually takes twice as much because of the doppler effect.

And this will take another second

8 May 2023 at 21:59 | Open on mastodon.social
Catherine Berry

@jd , that driver is going to get one heck of a speeding ticket!

8 May 2023 at 23:14 | Open on mastodon.sdf.org
DELETED

@jd
I'm not either, but I love astronomy.

8 May 2023 at 23:17 | Open on artisan.chat
DELETED
Angshu Chatterjee

@jd @donmelton this meme should belong to a science museum

9 May 2023 at 2:16 | Open on mindly.social
Pineapple 🍍

@jd
I got it.
But if you didn't tell me it was a physics joke I probably wouldn't have

9 May 2023 at 3:53 | Open on toot.pizza
Kickitupanacho

@Pineapple @jd

Me too. Got it immediately.
But I wonder if I saw it with no context/clue how long it would have taken?

9 May 2023 at 4:09 | Open on mastodon.social
black traffic πŸ‡ΊπŸ‡¦

@jd I used to say that a colleague must have thought he had a red-tinted rear view mirror.

9 May 2023 at 5:37 | Open on infosec.exchange
Level 98

@jd It's fun... but, every time I see it, I can't help mentioning: while colours are "correct", the lengths (etc.) are not.

Just talking 1D, the oncoming car should be longer, the receding car shorter (shorter than the usual length contraction).

Also, the oncoming car should be brighter, receding dimmer (relativistic beaming).

In 3D also other effects e.g. "Terrell rotation".

To see the full range of effects one can play the MIT game "A Slower Speed of Light":

gamelab.mit.edu/games/a-slower

@jd It's fun... but, every time I see it, I can't help mentioning: while colours are "correct", the lengths (etc.) are not.

Just talking 1D, the oncoming car should be longer, the receding car shorter (shorter than the usual length contraction).

Also, the oncoming car should be brighter, receding dimmer (relativistic beaming).

9 May 2023 at 6:09 | Open on mastodon.social
Quokka

@jd Reminds me of this one which still makes me laugh whenever I think about it, even years later.
Need to click to expand
9 May 2023 at 6:09 | Open on tictoc.social
Appagal Crochet
Rua

@jd Length is contracted regardless of whether it's moving towards or away. So the red car would still be squished.

9 May 2023 at 6:30 | Open on chitter.xyz
ajilemondrop :artix:
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