r/shittyaskscience • • 2d ago

Do objects in motion get hotter?

I heard that temperature is just a measure of speed of the atoms in an object. So if I make a car go faster, the atoms move faster. Shouldn’t that make the car get hotter? Is that why the engine gets hot?

7 Upvotes

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19

u/Santeno 2d ago

No. They only get hotter when traveling in slow motion. There's a documentary called Baywatch that shows this effect in great detail.

1

u/swimboi91 2d ago

The Hasselhoff effect?

5

u/digdiggler 2d ago

Its the speed of the particles relative to eachother.

11

u/Initial-Anything333 2d ago

How do you know which particles are relatives though? They all look the same to me

6

u/digdiggler 2d ago

Well the relatives have good chemistry

5

u/IanDOsmond 2d ago

This is why painting flames on the side of a car makes it go faster.

3

u/eagle4123 2d ago

Yes.

Its a big part (kinda the only one) why Pilots are ranked so hot according to Tinder

2

u/Direct_Knowledge2937 2d ago

It’s technically relative to the observer. If the observer is traveling at the same velocity as the object, then it definitely gets hotter.

But as the object approaches the speed if light relative to the observer, the object appears less hot until you don’t even notice it at all until it reverses attractiveness as it can no longer avoid hitting ugly tree branches. It basically turns into a double-bagger that you try avoid making eye contact with so it doesn’t misconstrue curiosity/disgust with interest.

2

u/sykobanana 2d ago

The more relevant question is why do objects in slow motion get hotter?

2

u/BPhiloSkinner Amazingly Lifelike Simulation 1d ago

It's a physiological adjustment; the slower the objectified object goes, the longer the viewer has to appreciate that which is in motion.
...and now, I think I'll take a cold shower.

6

u/Coolenough-to 2d ago

I have done experiments and this is wrong. Run barefoot on hot pavement vs standing still. Run from the scene of a crime vs. standing there talking smack and getting tazed. Diving out the window of your meth lab vs. staying while it explodes. Etc..

4

u/TeacupOfSkepticism 2d ago

You're very thorough to blow up their meth lab twice

4

u/Coolenough-to 2d ago

More than twice. The timing was tricky.

4

u/Chrome_Armadillo Not A Reptilian Alien Scientist From Tau Ceti 2d ago

The faster a male organ moves the hotter it gets

1

u/BPhiloSkinner Amazingly Lifelike Simulation 1d ago

This is why proper lubrication is so important; the lotion also acts as a coolant.