So Earth is spinning at 465m/s. And we are born here while its

We only experience the spin of the planet by day and night cycles and changing night sky.
If we slowed down the day and night would be longer, and if it sped up day and night would become faster and faster until the planet would destroy itself.

>>8816547
But would we feel it physically like in accelerating/deccelerating car?

>>8816550
Nope, besides the day/night getting longer everything would be normal.
Gravity would change to a minor degree too, pulling more if we slowed down and pull less if speeding up.

>>8816563
>>8816550
We would definitely feel a change in rotational speed...

>>8816547
>>8816563
You dont know shit, fuck off from here

>>8816541
if some event happened that caused the earth to lose rotational speed you would definitely notice

if the earth suddenly expanded it would spin slower; you would perceive and earthquake and probably die
if the earth was hit by a sizable asteroid at the right angle it could be forced to spin slower; you would probably be vaporized and die
if the earth suddenly shrank it would spin faster; you'd experience an earthquake and probably die. if it shrank enough the earth might be so dense and you so close to the core that gravity would crush you

http://news.nationalgeographic.com/news/2010/03/100302-chile-earthquake-earth-axis-shortened-day/

>Saturday's Chile earthquake was so powerful that it likely shifted an Earth axis and shortened the length of a day, NASA announced Monday.

>>8816612
Rotationg earth means we experience an upward force. This negates gravity to some extent, no by much though. We don't feel anything, because we're used to a vertical force pulling us down.

There's also the coriolis force impacting moving objects. It's relevant for high-speed trains, that will use up their rails on one side more than the other.

Maybe I'm forgetting some things, it's been years since I learned this stuff.

>>8816940
How about lateral momentum at the surface? A change in rotation would make everything at the surface feel a force, including the tectonic plates, which would cause insane earthquakes.

>>8816962
It depends how that change in rotation takes place. Let's say a misterious force acts to change the rotational speed.
If that force is very weak, it will not be felt or have much effects.

It that force is strong, it depends on what parts of the earth it acts.

1. If it acts on everything, you would not even feel it (because you feel a force with a small stuff in your head that is just an organic accelerometer). If everything in that accelerometer is impacted by the same force than you are, you don't feel anything).

2. If it acts lets say on the whole earth but not the buildings and people, everything would crumble.

3. It it acts below the tectonic plates, then yes the plates would be impacted and earthquakes would happen.

>>8817011
Location doesn't matter. A change in momentum induces a force. Earth changing rotational speed means momentum changes everywhere. Even a miniscule change could have large effects. The entire atmosphere has momentum, so changing it at all will induce motion of air worldwide.

>>8816541
Daily reminder that has been zero evidence in history of the rotation of the Earth. Not even Einstein was ever able to find it, despite trying his entire life. The Coriolis effect is a meme, and if you think bullets spin different directions regardless of consistent rifling you belong on /b/.

>>8817052
ever heard of a Foucault pendulum pleb?

https://en.wikipedia.org/wiki/Foucault_pendulum

>>8817030
where does the change in rotational speed come from ?

>>8817052
hey a meme

>>8817096
It doesn't matter. Let's go with I banged your mom in outer space and sent her hurdling towards Earth with the force of a quadrillion nukes. Anything that would cause a rotation change would have an effect globally.

>>8817131
That seem like an difficult way to express a simple idea : the change in rotational speed comes from a single point. Now, if you could understand the meaning of the stuff you read, you would realize you are a huge brainlet.

>>8816541
>1) What do astronauts feel when they leave our planet's spinning momentum?
The same thing you feel when you jump off the ground. Looking at the situation in terms of Earth's momentum makes it confusing. Better to think about it in terms of relative motion.

>>8816541

A) you do feel the spin of the earth, your weight will decrease toward the equator as opposed to near the poles because of earths spin

1) an extreme acceleration (aka the rocket launch) and then nothing unless another force is acting on them.

3) 1m/s negative acceleration would be noticeable as a lurch and definitely alarming when the earth stops spinning in a few minutes

No bully don't worry senpai

The spinning is relative
For us the earth is not moving at all and everything else is "spinning" around us

>>8817145
>the change in rotational speed comes from a single point.
That's irrelevant to the thread tho. OP is asking effects from a reduction in rotational speed. There doesn't need to be an explanation as to how it is happening.