1675 + 10km/h
1675 + 100km/h
1675km/h
Turns out that 1675km/h is the magic number, anything above that is dangerous
I’m a leading scientist on speed, and this is the answer.
They let scientists do drugs?
Who do you think invents the drugs?
Well maybe we should just turn the roller coasters around and go the other direction.
So 1675 - 100 = 1575 km/h?
I remember learning that before the invention of the locomotive, people thought that 30mph was some kind of barrier that the human body could not survive.
Acceleration vs. Velocity
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
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.
A mass weighing 100kg at the north pole would only weigh 99.5kg at the equator
That assumes a perfectly spherical earth. The earth is not perfectly spherical.
Interesting, would the muscles of someone living far away from the equator be stronger in general than compared to someone with the same genes / lifestyle on the equator?
0.5% is so tiny that it disappears into the noise. It’s a 1 in 200 difference. In theory, it would make a difference. In practice, you won’t be able to measure it. Other confounding factors would bury it.
The fact that your units are units of acceleration proves the guys point, no?
It sounded like the guy meant the 1700km/h is a velocity, not an acceleration, which is why we don’t feel the force of acceleration.
I was pointing out that spinning is acceleration, just in this case we can’t feel it due to other forces.
What are those pre-math numbers though? How screwed would we be if rotation doubled or stopped (regardless of the virtual impossibility)?
Have you seen the elementary school experiment where you spin an egg on a flat surface, then you stop the egg and let it go and the then the egg starts spinning again?
If the earth suddenly stopped spinning, the atmosphere would still be spinning at 1700km/h.
A cat 5 hurricane has wind speeds of 253km/h. So we’d be boned.
Look up xkcd world stop spinning
Only on the equator, the force is just tiny, it produces major weather systems through the coriolis effect but only on giant scales. This would be like saying people get dizzy if they stand near the pole.
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
Those men are just very good friends.
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.
I think I feel it
I thought so too but it ended up just being an encumbrance of vapors
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.
static
Relative to what?
The center of the universe, I suppose. How fast is the Milky Way moving away from the center? I imagine quite fast.
There is no center, and there’s no fixed grid. It’s still funny to think of the atmosphere stopping from the sun’s reference frame, though.
Well at the very least, we’re supposedly moving 2.1million km per hour along with the Milky Way, and 720,000 km per hour within the Milky Way (so it could be more or less if that’s with Milkys movement or not), plus our own movement around our sun, so … basically really fast.
My point is, having anything just freeze like a glitch would probably cause something terrible. Granted even relative to the sun is probably catastrophic so it’s kind of a moot point, haha.
Xkcd kinda did a video on it except the earth is the one that stopped. It’s pretty much exactly the same result though
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.
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.
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.
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)
velocity V acceleration.
Wait, so if I drive fast enough I get a nice picnic meal?!?!
Space doesn’t have air dummy
But earth is in space and I am ALMOST certain earth has air around it!
Unfortunately it does add up :(
If earth speed + hooman speed = no go
You see, that is another perfect example for why earth has to be flat, anything else just isn’t logical!
Fucking thank you! I was furiously skimming to see if anyone knew! It’s totes obvs that the ice walls block the wind, duh doi.
Wow am I on facebook?
The earth isn’t rotating and shaped like a pyramid
It’s not spinning AND shaped like a pyramid?
…where does the turtle go?
