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Posted: 4/7/2006 12:31:08 AM EDT
www.space.com/scienceastronomy/planetearth/earth_move_010207.html

As a physics student I thought this was very cool. A plan has been developed to save the earth from the sun expanding as it becomes a red giant.
Link Posted: 4/7/2006 12:49:15 AM EDT
Sounds great, but would we really need it in a BILLION years? C'mon, I figure we'll at least have big space ships in at most a couple thousand if humanity is even still around...
Link Posted: 4/7/2006 1:18:37 AM EDT
yeah, or a working Stargate program

not that it effects our lives in any way I just thought it was cool.
Link Posted: 4/7/2006 2:02:17 AM EDT

Originally Posted By Magurgle:
www.space.com/scienceastronomy/planetearth/earth_move_010207.html

As a physics student I thought this was very cool. A plan has been developed to save the earth from the sun expanding as it becomes a red giant.



By then we will have moved on to other planets. Earth may be inhabited, but it will not hold much more than sentimental value.

Or no intelligent life will be here at all, in which case, who cares?

Jim
Link Posted: 4/7/2006 2:27:38 AM EDT
hate to be a downer....but this is a solution to a problem that doesn't exist....
Link Posted: 4/7/2006 2:28:59 AM EDT

Originally Posted By HillBillySasquatch:
hate to be a downer....but this is a solution to a problem that doesn't exist....



Yes it does. All stars die, even our Sun.
Link Posted: 4/7/2006 2:30:58 AM EDT
I say we move it ten feet that way ------->
Link Posted: 4/7/2006 3:01:23 AM EDT
I thought you could knock the earth out of orbit if all the Chinese on the count of 3 jumped up and down at the exact same time.
Link Posted: 4/7/2006 3:29:02 AM EDT

Originally Posted By HarrySacz:
I say we move it ten feet that way ------->



I must be tired...that made me laugh.
Link Posted: 4/7/2006 3:43:38 AM EDT

Originally Posted By Sagus:

Originally Posted By HarrySacz:
I say we move it ten feet that way ------->



I must be tired...that made me laugh.



I liked it too
Link Posted: 4/7/2006 3:43:56 AM EDT
I think I read that the moon will move far enough away from the earth to cause life ending type weather to happen long before the sun expands far enough to threaten life.
Link Posted: 4/7/2006 3:48:28 AM EDT
And the earth's magnetic field which shields us from cosmic radiation will be long gone as well. Let me guess, a government grant was involved here somehow.
Link Posted: 4/7/2006 3:54:44 AM EDT
[Last Edit: 4/7/2006 4:21:25 AM EDT by Cleatus]
It will be enclosed in a giant tranparent aluminum ball on display at a cosmic museum.

Earth Museum curator and lead tour guide-The the re-incarnated talking head in a jar Scottie -can say over and over "There be whales here captian!!"

Link Posted: 4/7/2006 4:15:45 AM EDT
The Earth's oceans will have evaporated away within 1 to 1.5 billion years. We've got that long to get out of Dodge. I think we'll manage in 200-500 years though, assuming we don't have a large nuclear war.
Link Posted: 4/7/2006 4:22:39 AM EDT

Originally Posted By falaholic1:

Originally Posted By HillBillySasquatch:
hate to be a downer....but this is a solution to a problem that doesn't exist....



Yes it does. All stars die, even our Sun.



By the time that happens, Earth will probably have been 'used up' & we will be able to get out of the way...
Link Posted: 4/7/2006 4:37:17 AM EDT

Originally Posted By Dave_A:

Originally Posted By falaholic1:

Originally Posted By HillBillySasquatch:
hate to be a downer....but this is a solution to a problem that doesn't exist....



Yes it does. All stars die, even our Sun.



By the time that happens, Earth will probably have been 'used up' & we will be able to get out of the way...



the earth will be "used up" in less than 500 years... It will be lots of fun to mine our old garbage dumps for recoverable metals and such.
Link Posted: 4/7/2006 4:38:37 AM EDT
our membrane will slam into a neighboring one, rendering this discussion moot
Link Posted: 4/7/2006 4:47:30 AM EDT

Originally Posted By Cleatus:

Originally Posted By Dave_A:

Originally Posted By falaholic1:

Originally Posted By HillBillySasquatch:
hate to be a downer....but this is a solution to a problem that doesn't exist....



Yes it does. All stars die, even our Sun.



By the time that happens, Earth will probably have been 'used up' & we will be able to get out of the way...



the earth will be "used up" in less than 500 years... It will be lots of fun to mine our old garbage dumps for recoverable metals and such.



Recover metals from garbage dumps in 500 years?

In 500 years, natural resources wont be a problem. Metals are everywhere out there.

Those who don't believe we'll be "elsewhere" in 500 years have a very poor understanding of the exponential development of technology.

Oh, except for the 1911. That was a perfect implement from it's inception.
Link Posted: 4/7/2006 4:53:34 AM EDT


TAG

MIKE
Link Posted: 4/7/2006 4:54:12 AM EDT

Originally Posted By KS_Physicist:

Originally Posted By Magurgle:
www.space.com/scienceastronomy/planetearth/earth_move_010207.html

As a physics student I thought this was very cool. A plan has been developed to save the earth from the sun expanding as it becomes a red giant.



By then we will have moved on to other planets. Earth may be inhabited, but it will not hold much more than sentimental value.

Or no intelligent life will be here at all, in which case, who cares?

Jim




You'll have to find some first.
Link Posted: 4/7/2006 4:56:27 AM EDT

Originally Posted By KS_Physicist:

Originally Posted By Magurgle:
www.space.com/scienceastronomy/planetearth/earth_move_010207.html

As a physics student I thought this was very cool. A plan has been developed to save the earth from the sun expanding as it becomes a red giant.



By then we will have moved on to other planets. Earth may be inhabited, but it will not hold much more than sentimental value.

Or no intelligent life will be here at all, in which case, who cares?

Jim



Not much intelligent life here now.

Look at Congress.
Link Posted: 4/7/2006 7:23:15 AM EDT

Originally Posted By Magurgle:
www.space.com/scienceastronomy/planetearth/earth_move_010207.html

As a physics student I thought this was very cool. A plan has been developed to save the earth from the sun expanding as it becomes a red giant.



Taking this ideal somewhat seriously

Not practical nor possible.

Mass of Earth is 5.98x10^24 Kg.

In the Classical Realm: F=MA or Force = Mass * Acceleration

Work (Energy) = Force * distance

The Inertial of the Earth is so large that it would take an awful lot of "rocks", let alone the fact that the orbit's eccentricity would likely increase, making for some rather undesirable climatic effects.

Link Posted: 4/7/2006 7:51:22 AM EDT
Thank God!

I'm glad someone has got this figured out.

Now my plans to become immortal can proceed. That whole "red giant" thing was putting a tremendous crimp in my long-term outlook.
Link Posted: 4/7/2006 7:56:35 AM EDT

Originally Posted By Bostonterrier97:

Originally Posted By Magurgle:
www.space.com/scienceastronomy/planetearth/earth_move_010207.html

As a physics student I thought this was very cool. A plan has been developed to save the earth from the sun expanding as it becomes a red giant.



Taking this ideal somewhat seriously

Not practical nor possible.

Mass of Earth is 5.98x10^24 Kg.

In the Classical Realm: F=MA or Force = Mass * Acceleration

Work (Energy) = Force * distance

The Inertial of the Earth is so large that it would take an awful lot of "rocks", let alone the fact that the orbit's eccentricity would likely increase, making for some rather undesirable climatic effects.




I was thinking of something along those lines...
Link Posted: 4/7/2006 8:01:25 AM EDT
IIRC we have about 50,000 years of stable energy output from the Sun left. After that it gets uncertain anyway. It's output can change and have dramatic effects on climate. It won't take much to make life very hard here for people very quick. I doubt we will be here when this star goes red.
Link Posted: 4/7/2006 8:05:28 AM EDT
How many cases of MRE's will we have to stock up on until we find a new sun?
Link Posted: 4/7/2006 8:12:31 AM EDT
Tag
Link Posted: 4/7/2006 8:21:21 AM EDT

Originally Posted By Grunteled:
IIRC we have about 50,000 years of stable energy output from the Sun left. After that it gets uncertain anyway. It's output can change and have dramatic effects on climate. It won't take much to make life very hard here for people very quick. I doubt we will be here when this star goes red.



Actually I read that that number is a SWAG and subject to interpretations. Some scientists argue that it will remain stable for another half million years some say 50k years some say 5 million.. Go figure.. In any event, I doubt we'll be here..
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