this post was submitted on 19 Nov 2024
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[–] qwerty@discuss.tchncs.de 86 points 3 days ago* (last edited 3 days ago) (5 children)

I know this is a joke but if anyone is wondering it's because they build those things to go towards the air, otherwise they would be going away from the air and it would be hard to breath. Earth is going away from the air too but luckily it has trees attached to itself that make more air and leave it behind, that's where wind comes from.

[–] cordlesslamp6891@lemmy.world 21 points 2 days ago (1 children)

Who are you, who are you so wise in the ways of science?

[–] Tyfud@lemmy.world 20 points 2 days ago (1 children)
[–] Texas_Hangover@sh.itjust.works 12 points 2 days ago

Calvin's Dad over here.

i'm taking a meteorology class and can confirm that this is how wind works.

[–] Smoogs@lemmy.world 2 points 2 days ago

Im sure going against the force of gravity vs gravity pull to the earth has a lot to do with it too.

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[–] scrubbles@poptalk.scrubbles.tech 118 points 3 days ago (2 children)
[–] Harvey656@lemmy.world 15 points 2 days ago

Yes, now out with your deeply ingrained racist ideologies or I'm gonna sic gran on you.

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[–] LouNeko@lemmy.world 21 points 2 days ago

Those men are just very good friends.

[–] mlg@lemmy.world 34 points 2 days ago (1 children)

I'm appalled at the amount of people in this comments section who failed elementary grade school level of physics and also somehow failed to notice this is the shitpost community

[–] DragonTypeWyvern@midwest.social 2 points 2 days ago* (last edited 2 days ago)

It's not...

Maybe it was supposed to be, but it's just a regular meme sub

[–] RizzRustbolt@lemmy.world 41 points 3 days ago (1 children)
[–] Idreamofcheesy@lemmy.world 49 points 3 days ago (8 children)

Not quite. When you're rotating, you are constantly accelerating in a tangent direction to the diameter. So the poster is right that we should be feeling a force shooting us away from the center of earth.

Except the force of gravity cancels out the centripetal force and then some.

So [force of gravity] - [centripetal force of Earth's rotation] = 9.8m/s^2

[–] cynar@lemmy.world 24 points 3 days ago (6 children)

The difference is about 0.5%. A mass weighing 100kg at the north pole would only weigh 99.5kg at the equator. Most of the difference is the centerfugal force of the earth's rotation.

I've not checked the numbers, but apparently it's detectable in Olympic sports. More height records get broken at equatorial latitudes that higher ones.

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[–] whotookkarl@lemmy.world 18 points 3 days ago (1 children)

If you want to just pick the fastest velocity we can measure and we're currently moving at thanks to dark energy the Milky Way galaxy is moving away from other distant galaxies faster than the speed of light.

[–] Agent641@lemmy.world 5 points 2 days ago (1 children)
[–] whotookkarl@lemmy.world 1 points 2 days ago

I thought so too but it ended up just being an encumbrance of vapors

[–] taiyang@lemmy.world 18 points 3 days ago (6 children)

Man, it'd be so funny if the entire atmosphere just straight up locked in place. Heck, forget rotation, have it keep it's X/Y/Z in the universe static and just straight up disappear as our solar system moves on.

[–] Remotedeck@discuss.tchncs.de 11 points 3 days ago (1 children)

Xkcd kinda did a video on it except the earth is the one that stopped. It's pretty much exactly the same result though

https://m.youtube.com/watch?v=gp5G1QG6cXc

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[–] superkret@feddit.org 13 points 3 days ago

That's cause earth isn't actually rotating at all. The entire universe rotates around earth.

[–] Unknown1234_5@lemmy.world 9 points 3 days ago (1 children)

Ik this is a joke but if anyone is wondering it's because units of linear motion (km/h, mph, etc.) do not accurately describe rotation. Rotational units like rpm are much better as linear units give a misleadingly large (though technically correct) number.

[–] GoodEye8@lemm.ee 21 points 3 days ago (1 children)

If anyone is wondering it's actually because of frame of reference. The first two images have speeds in relation to the rotation of earth, the last imagine uses a different frame of reference. If you put the last image in the same frame of reference as the first two images the number there would be 0km/h, because it would be moving in relation to itself.

[–] mkwt@lemmy.world 6 points 3 days ago (1 children)

It's actually because the thing that makes you make those faces is the acceleration, not the speed.

All three reference frames shown are accelerated, non inertial frames. But the first two have "fictitious" centrifugal accelerations somewhere around 0.5-2.5 g. The third frame has a detectable centrifugal acceleration, but it's like 0.003 g or something, and can be lumped in with gravity for many types of problems.

[–] beastlykings@sh.itjust.works 11 points 3 days ago

It's actually because of wind resistance, the air is moving the same speed as the ground when the earth turns so you don't feel it.

(don't @ me I'm just following what I recognized to be a humorous pattern of technically correct "well actually"s)

[–] peanuts4life@lemmy.blahaj.zone 12 points 3 days ago (2 children)

Maybe my math is wrong but: The Earth's radius is about 6,371 kilometers. With this large radius and a 24-hour rotation period, the centripetal acceleration at the equator is only about 0.034 m/s². This is tiny compared to Earth's gravitational acceleration of 9.8 m/s². So the centripetal effect is only about 0.3% of gravity's effect.

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[–] Fortatech@gregtech.eu 10 points 3 days ago

CHECKMATE ATHEISTS!!!

[–] inb4_FoundTheVegan@lemmy.world 9 points 3 days ago (1 children)

Wait, so if I drive fast enough I get a nice picnic meal?!?!

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[–] Skullgrid@lemmy.world 8 points 3 days ago

velocity V acceleration.

[–] UnfortunateShort@lemmy.world 6 points 3 days ago (2 children)

The earth isn't rotating and shaped like a pyramid

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[–] DmMacniel@feddit.org 7 points 3 days ago* (last edited 3 days ago) (3 children)

Uh, is this supposed to be a humorous jab at flat earthers, or do you actually think that this doesn't add up and out yourself as a flat eather and in this case do you wish an explanation?

[–] The_Picard_Maneuver@lemmy.world 29 points 3 days ago (3 children)

Maybe I should've put this in lemmyshitpost because I didn't expect anyone to think it was serious.

[–] DmMacniel@feddit.org 19 points 3 days ago (1 children)

I have very sensitive antennae when it comes to flat earth bullshit and also started to develop an allergy to non-science. So I beg your pardon that I asked...

[–] The_Picard_Maneuver@lemmy.world 10 points 3 days ago (2 children)

Well you aren't the only one, so maybe I should have laid the sarcasm on more clearly. I thought most people would read the title as tongue-in-cheek.

[–] QuantumSparkles@sh.itjust.works 11 points 3 days ago (2 children)

Honestly the internet has made me paranoid about who is and isn’t serious and who may or may not be a stupid twat

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[–] DmMacniel@feddit.org 7 points 3 days ago* (last edited 3 days ago) (1 children)

Sorry captain, but I've heard a lot of Flat Earthers that use that exact phrase and act like its a gotcha that the Earth supposedly moves with 1675 km/h (it doesn't, it rotates at a 15 degrees per hour drift ^Thanks^ ^bob^) can't be felt.

[–] The_Picard_Maneuver@lemmy.world 7 points 3 days ago (1 children)

Wow, I'm surprised they even try to explain it mathematically at all. Like, if you're going to believe something crazy, numbers clearly aren't going to make or break your conviction.

[–] DmMacniel@feddit.org 7 points 3 days ago

Oh yeah, they use loony toons maths to explain certain aspect of reality while a globe earth would explain it all at the same time.

[–] SapphironZA@sh.itjust.works 2 points 2 days ago

Any intelligent joke requires a disclaimer because of flat earthers, Qanoners and conservatives.

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