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Stopped spinning

 
 
Reply Tue 5 Feb, 2013 10:52 pm
If the earth were to stop spinning would it be like when your in a car that stops suddenly or would it happen much slower?
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Type: Question • Score: 1 • Views: 1,229 • Replies: 10
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rosborne979
 
  1  
Reply Wed 6 Feb, 2013 04:19 am
@starsegypt4,
What do you think might stop it from spinning?

In any case, the laws of physics would always apply.
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rosborne979
 
  2  
Reply Wed 6 Feb, 2013 05:04 am
@starsegypt4,
Quote:
Simplistic explanation of surface velocity :
The circumference of the Earth at the equator is 25,000 miles. The Earth rotates in about 24 hours. Therefore, if you were to hang above the surface of the Earth at the equator without moving, you would see 25,000 miles pass by in 24 hours, at a speed of 25000/24 or just over 1000 miles per hour.

Multiply by cosine of your latitude to see how fast the Earth is rotating where you are.

Earth is also moving around the Sun at about 67,000 miles per hour.


No type of natural force could possibly stop the Earth (or anything that massive) instantly without destroying it in the process. It would require a collision with an object of dramatically greater mass, which would result in an energy release sufficient to liquify (plasma) most of the planet (thus ruining everyone's day).

On the other hand, the Earth and many other objects, like the moon, do lose their rotation very slowly over time due to tidal locking and other effects. But those things happen so slowly that we would never notice them.
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Brandon9000
 
  1  
Reply Sun 25 May, 2014 11:08 pm
That would be a lot of angular momentum to drain off. This is not going to happen naturally except, perhaps, very, very slowly by tidal forces.
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roger
 
  1  
Reply Sun 25 May, 2014 11:59 pm
@starsegypt4,
You might want to check out David Niven's Ringworld series.
Brandon9000
 
  1  
Reply Mon 26 May, 2014 12:10 am
@roger,
David Niven is a dead actor. :-)
roger
 
  1  
Reply Mon 26 May, 2014 12:16 am
@Brandon9000,
You're right. I think I meant Larry Niven. Lemme go check.
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roger
 
  1  
Reply Mon 26 May, 2014 12:17 am
@Brandon9000,
Yeah, I meant Larry Niven.

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Brandon9000
 
  1  
Reply Mon 26 May, 2014 01:39 am
"Ringworld," "The Ringworld Engineers," "The Ringworld Throne," etc. Niven is great.
roger
 
  1  
Reply Mon 26 May, 2014 01:55 am
@Brandon9000,
You know, I always thought the best work came from Niven and Pournelle, which is the only collaboration I can think of that really worked. Maybe Niven required more thought than I was ready to put into science fiction.
Brandon9000
 
  1  
Reply Mon 26 May, 2014 08:59 am
@roger,
I liked "The Mote in God's Eye."
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