Author Topic: 2012 what do you think will happen?  (Read 1525 times)

Offline Anodizer

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Re: 2012 what do you think will happen?
« Reply #30 on: April 23, 2012, 12:58:31 PM »
Actually, the Earth will end before then.  Once the Moon departs its orbit of Earth (if I recall it is moving away at about 1 inch a year), the orbital stability of the Earth will fail.  Should happen long before the Sun will kill it.


Actually that's wrong...  The Earth's axis would wobble..  But the Earth's orbit around the sun wouldn't change..  I think you meant to say that the Earth's rotation on its axis would fail.. 
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Offline Shuffler

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Re: 2012 what do you think will happen?
« Reply #31 on: April 23, 2012, 02:02:30 PM »
Actually, the Earth will end before then.  Once the Moon departs its orbit of Earth (if I recall it is moving away at about 1 inch a year), the orbital stability of the Earth will fail.  Should happen long before the Sun will kill it.

This is true................. we will begin to wobble. The speed of rotation will change. All the skinny folks will start to float off...... 
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Offline Skuzzy

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Re: 2012 what do you think will happen?
« Reply #32 on: April 23, 2012, 02:02:47 PM »

Actually that's wrong...  The Earth's axis would wobble..  But the Earth's orbit around the sun wouldn't change..  I think you meant to say that the Earth's rotation on its axis would fail..  

Yes, that is what I meant.  There would be no definable axis of rotation soon after the Moon departed.
« Last Edit: April 23, 2012, 02:05:39 PM by Skuzzy »
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Offline 321BAR

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Re: 2012 what do you think will happen?
« Reply #33 on: April 23, 2012, 02:06:40 PM »
See Rule #14
« Last Edit: April 23, 2012, 02:07:58 PM by Skuzzy »
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Offline ghi

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« Last Edit: April 23, 2012, 09:37:14 PM by ghi »

Offline 68ZooM

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Re: 2012 what do you think will happen?
« Reply #35 on: April 23, 2012, 09:42:10 PM »
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Offline 321BAR

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Re: 2012 what do you think will happen?
« Reply #36 on: April 23, 2012, 10:36:02 PM »
See Rule #2, #14
« Last Edit: April 24, 2012, 08:52:59 AM by Skuzzy »
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Offline Anodizer

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Re: 2012 what do you think will happen?
« Reply #37 on: April 23, 2012, 11:28:56 PM »
This is true................. we will begin to wobble. The speed of rotation will change. All the skinny folks will start to float off...... 

Yeah, but rotation isn't what controls gravity..  I mean, it does in a really minuscule sense because you're a teensy weensy bit lighter at the poles of the Earth..  However, mass is what controls gravity.. 
The bigger the mass, the more you weigh..  The moon is smaller, has less mass..  Things weigh 1/6 less..  Astronauts bouncing around..  That sort of thing..
Jupiter, the biggest planet, 318 times the mass of Earth: if there was anything solid to land on in the first place, you'd weigh over 2 1/2 times more than you would on Earth..

 
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Offline Anodizer

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Offline Bodhi

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Re: 2012 what do you think will happen?
« Reply #39 on: April 23, 2012, 11:36:40 PM »
Yes, that is what I meant.  There would be no definable axis of rotation soon after the Moon departed.

Regardless of an axis tilt which is very unlikely considering the self seeking stability of a rotating mass, let's say it does, do you really think an axis tilt is honestly going to throw the world into chaos?  Sure, it some gigantic universal twist did it suddenly, but there is no data to support that is possible other than through a physical collision or large orbital pass that could force such.

Are you saying Planet X is real?
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Offline ByeBye

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Re: 2012 what do you think will happen?
« Reply #40 on: April 23, 2012, 11:49:20 PM »
I have not read even one post in this thread. I saw the title of the OP, and that's it.

What do I think will happen n 2012? I predict that 2012 will be followed by 2013. The world will just advance another year in time.

Offline morfiend

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Re: 2012 what do you think will happen?
« Reply #41 on: April 24, 2012, 12:05:19 AM »
Actually, the Earth will end before then.  Once the Moon departs its orbit of Earth (if I recall it is moving away at about 1 inch a year), the orbital stability of the Earth will fail.  Should happen long before the Sun will kill it.


  While this may be true,now that Dick Clark has died and they cancled new years,looks like the Mayans knew something...... :noid





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Offline Skuzzy

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Re: 2012 what do you think will happen?
« Reply #42 on: April 24, 2012, 09:01:46 AM »
Regardless of an axis tilt which is very unlikely considering the self seeking stability of a rotating mass, let's say it does, do you really think an axis tilt is honestly going to throw the world into chaos?  Sure, it some gigantic universal twist did it suddenly, but there is no data to support that is possible other than through a physical collision or large orbital pass that could force such.

Are you saying Planet X is real?

When you talk about the stability of a rotating mass, you are referring to one that is static.  The Earth is not a static mass.  The plates are shifting everyday and the land mass drift never stops.

There are physics models showing the Earth doing its own flipping during rotation without the Moon to stabilize it.  The 45 degree wobble we are on now is only inhibited by the Moon.  Without that Earth would not stop its tilting.  Even as the Moon is drifting away, the tilt and the rotation of the Earth has been altered from what it was a few million years ago.

Once the axis, the Earth rotates on, is reduced to a dot, life will be pretty improbable to maintain.
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Offline Karnak

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Re: 2012 what do you think will happen?
« Reply #43 on: April 24, 2012, 10:24:06 AM »
Can't vouch for the accuracy of the answer, but this was the first non-anti-evolution link I found via google:
http://www.physlink.com/education/askexperts/ae429.cfm

Question

What will be the fate of our moon? Will it remain in a stable orbit, crash back into Earth or drift off into space?

Asked by: Tom Burke

Answer

The Moon is gradually receding from the Earth, at a rate of about 4 cm per year. This is caused by a transfer of Earth's rotational momentum to the Moon's orbital momentum as tidal friction slows the Earth's rotation. That increasing distance means a longer orbital period, or month, as well.

To picture what is happening, imagine yourself riding a bicycle on a track built around a Merry-go-Round. You are riding in the same direction that it is turning. If you have a lasso and rope one of the horses, you would gain speed and the Merry-Go-Round would lose some. In this analogy, you and your bike represent the Moon, the Merry-Go-Round is the rotating Earth, and your lasso is gravity. In orbital mechanics, a gain in speed results in a higher orbit.

The slowing rotation of the Earth results in a longer day as well as a longer month. Once the length of a day equals the length of a month, the tidal friction mechanism would cease. (ie. Once your speed on the track matches the speed of the horses, you can't gain any more speed with your lasso trick.) That's been projected to happen once the day and month both equal about 47 (current) days, billions of years in the future. If the Earth and Moon still exist, the distance will have increased to about 135% of its current value.

Answered by: Paul Walorski, B.A., Part-time Physics Instructor
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Offline Grayeagle

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Re: 2012 what do you think will happen?
« Reply #44 on: April 24, 2012, 10:56:24 AM »
What will happen?

Ima prolly take a nap after lunch,
.. play World of Tanks for while,
..mebbe clean up the Vette near sundown.

You know .. the usual :)

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