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Profile Julie
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Message 1726152 - Posted: 16 Sep 2015, 7:31:41 UTC
Last modified: 16 Sep 2015, 8:19:10 UTC

Crazy... Not possible in my opinion. Our solar system is completely in balance, one small change could destroy that equillibrium. There's a reason the sun and moon have the same size in our sky. Just think of the moon's tidal forces we would lose as well. Pure science fiction..

How can we move the earth?


Here’s the best idea scientists have come up with so far. Gravity assists: Attach rockets to an asteroid, comet or Kuiper belt object and have it fall on a trajectory that takes it close to the Earth. Earth and this space rock would exchange a little momentum.

The rock slows down a bit and goes into a new orbit, and the Earth speeds up a little. That additional momentum pushes our orbit up a tiny little bit, and now we’re further away from the Sun. You’d need to do this tens of thousands or even a million times.


[edit] I think scientists come up with ideas like that to give people hope for the survival of their posterity.


he bad news is this is neither a fast nor an easy process. It would have to be repeated no less than six thousand times. Some estimates say it could take up to a million times. In between passes, the asteroid would have to go to Jupiter or Saturn, which would gravity-assist the asteroid back to Earth. Each pass would take the asteroid between 16,000 and 10,000 miles away from the Earth. Any mistake would either lose the asteroid, or would cause the asteroid to hit Earth, killing every single thing on it, with the possible exception of microbes. Still, compared to a fall into the sun, it's gotta be the best option, right?

Not if you live on the coast. The asteroid's pull on the tides would be ten times the pull of the Moon. It would cause storms, tsunamis, and chaotic seasonal changes. We'd also have to calculate its passes, so it wouldn't change the rotation of the Earth and give us, say, a twenty-three-hour day. Even if we did move the Earth, ideally to about where Mars is right now, we'd have a different orbit around the sun, and we'd have Mars as a freaky new neighbor, which might also play hell with our own orbit. What's the possible up side? Another five billion years of habitability on Earth. Right now, it looks like we might have, at the outside, about three billion — with things getting bad at the half a billion mark. I don't know about you, but five billion more years on Earth seems like it would be worth, say, forty million years' work. Who wants to get started on those solar powered rockets?


http://io9.com/5923828/dont-worry-people--nasa-has-a-plan-for-moving-the-earth
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Message 1726178 - Posted: 16 Sep 2015, 9:34:11 UTC

@Julie,
maybe if we put a sails on those asteroids 1 day...& sail with them across Solar system... ;)

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Message 1726182 - Posted: 16 Sep 2015, 9:49:32 UTC - in response to Message 1726152.  

hope for the survival of their posterity


Julie I believe the word you want is "posterior" !

What would moving to a larger orbit do to our expensive watches and grandfather clocks ??
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Message 1726186 - Posted: 16 Sep 2015, 10:06:10 UTC - in response to Message 1726182.  
Last modified: 16 Sep 2015, 13:35:08 UTC

hope for the survival of their posterity


Julie I believe the word you want is "posterior" !


I don't believe so William, I meant 'future generations':.

http://www.thefreedictionary.com/posterity

What would moving to a larger orbit do to our expensive watches and grandfather clocks ??


LOL, time dilation leaps to mind ;D
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Message 1726189 - Posted: 16 Sep 2015, 10:30:37 UTC - in response to Message 1726178.  
Last modified: 16 Sep 2015, 10:33:21 UTC

@Julie,
maybe if we put a sails on those asteroids 1 day...& sail with them across Solar system... ;)


Right, where the non-existing universal vacuum winds will propel us further to our destination ;D
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Message 1726190 - Posted: 16 Sep 2015, 10:54:11 UTC - in response to Message 1726182.  

hope for the survival of their posterity


Julie I believe the word you want is "posterior" !

What would moving to a larger orbit do to our expensive watches and grandfather clocks ??

Larger orbit means that we would have longer years not longer or shorter days.
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Message 1726270 - Posted: 16 Sep 2015, 18:37:26 UTC - in response to Message 1726190.  
Last modified: 16 Sep 2015, 18:38:09 UTC

Larger orbit means that we would have longer years not longer or shorter days.


Yes, assuming that the spin rate has not changed. However what would happen to the month and day indications on my watch if there were more than 365 days in one orbit around the sun. Also the seasons would get out of whack.
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Message 1726303 - Posted: 16 Sep 2015, 20:48:27 UTC - in response to Message 1726270.  
Last modified: 16 Sep 2015, 20:49:17 UTC

Larger orbit means that we would have longer years not longer or shorter days.


Yes, assuming that the spin rate has not changed. However what would happen to the month and day indications on my watch if there were more than 365 days in one orbit around the sun. Also the seasons would get out of whack.

Spin rate of planets has nothing to do with the distance to the Sun.
Yes. You have to adjust month and day indications on clocks if earth is moved to a larger orbit.
But a day would still be 24 hours.
And the seasons will be longer.
What happens if they do I have no idea.
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Message 1726588 - Posted: 17 Sep 2015, 21:00:14 UTC

"Months" are an artificial time interval, unlike "days" and "years" which are directly related to the earth's rotation around its own axis and the rotation around the sun's axis respectively.
If you increased the "radius" of the earth's rotation around the sun by say 10%, but kept its own axial rotation rate the same a day would still be 24hours, but the number of days in a year would increase. Thus the calendar would have to have more days in it, which would imply that either a new month would have to be inserted, or the number of days in each month would have to be increased.
As for seasons, these are the result of the axial tilt and the rotation around the sun. Assuming that the tilt stayed more or less the same the seasons would still exist, but they would all be colder as there would be less energy input from the sun.
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Message 1726628 - Posted: 17 Sep 2015, 22:35:55 UTC - in response to Message 1726588.  
Last modified: 17 Sep 2015, 22:36:29 UTC

"Months" are an artificial time interval
Not in religious communites and business accounting:)

As for seasons, these are the result of the axial tilt and the rotation around the sun. Assuming that the tilt stayed more or less the same the seasons would still exist, but they would all be colder as there would be less energy input from the sun.
Yes. It's much colder further out from the sun.
Mars weather report.
http://marsweather.com/data
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Message 1726726 - Posted: 18 Sep 2015, 3:41:42 UTC - in response to Message 1726628.  

At the point that earth might be moved, the sun will be expanding and we will need to be further out. Can't really imagine us being able to do that though.
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Message 1726769 - Posted: 18 Sep 2015, 5:51:21 UTC - in response to Message 1726726.  

At the point that earth might be moved, the sun will be expanding and we will need to be further out. Can't really imagine us being able to do that though.


Me neither.
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Message 1726790 - Posted: 18 Sep 2015, 7:42:03 UTC - in response to Message 1726726.  

At the point that earth might be moved, the sun will be expanding and we will need to be further out. Can't really imagine us being able to do that though.

by d time Earth will have to be moved, we'd have to be @ least all over 1/2 of Galaxy...we're talking about "millions of years" in future!
;)

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Message 1728106 - Posted: 23 Sep 2015, 12:35:04 UTC

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Message 1728216 - Posted: 23 Sep 2015, 16:45:04 UTC - in response to Message 1726790.  

At the point that earth might be moved, the sun will be expanding and we will need to be further out. Can't really imagine us being able to do that though.

by d time Earth will have to be moved, we'd have to be @ least all over 1/2 of Galaxy...we're talking about "millions of years" in future!
;)

This is all assuming there would be enough left of the Earth to salvage, of course. It's hard to imagine cosmic engineering when we can't even pick up our own trash.
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Message 1728468 - Posted: 24 Sep 2015, 10:22:27 UTC - in response to Message 1728216.  

At the point that earth might be moved, the sun will be expanding and we will need to be further out. Can't really imagine us being able to do that though.

by d time Earth will have to be moved, we'd have to be @ least all over 1/2 of Galaxy...we're talking about "millions of years" in future!
;)

This is all assuming there would be enough left of the Earth to salvage, of course. It's hard to imagine cosmic engineering when we can't even pick up our own trash.

u mean that something similar film called Deep Impacct
;)

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Message 1728603 - Posted: 24 Sep 2015, 18:57:05 UTC - in response to Message 1728468.  

At the point that earth might be moved, the sun will be expanding and we will need to be further out. Can't really imagine us being able to do that though.

by d time Earth will have to be moved, we'd have to be @ least all over 1/2 of Galaxy...we're talking about "millions of years" in future!
;)

This is all assuming there would be enough left of the Earth to salvage, of course. It's hard to imagine cosmic engineering when we can't even pick up our own trash.

u mean that something similar film called Deep Impacct
;)

No, I'm just wondering out loud what kind of shape the planet will be in by then. We won't need any extinction event to take us out at the rate we're going.
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Message 1728751 - Posted: 25 Sep 2015, 8:20:23 UTC - in response to Message 1728603.  

At the point that earth might be moved, the sun will be expanding and we will need to be further out. Can't really imagine us being able to do that though.

by d time Earth will have to be moved, we'd have to be @ least all over 1/2 of Galaxy...we're talking about "millions of years" in future!
;)

This is all assuming there would be enough left of the Earth to salvage, of course. It's hard to imagine cosmic engineering when we can't even pick up our own trash.

u mean that something similar film called Deep Impacct
;)

No, I'm just wondering out loud what kind of shape the planet will be in by then. We won't need any extinction event to take us out at the rate we're going.

well, people are more obsessed about THINGS & MONEY, then about progress...yes, it costs some money...but it's the fact of the Goals!

we haven't put a clear Goal to go to Space...yet!
;)

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Message 1729102 - Posted: 26 Sep 2015, 9:18:34 UTC

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Message 1729125 - Posted: 26 Sep 2015, 12:57:55 UTC - in response to Message 1729102.  

A new quantum teleportation distance record has been set

Building an entire "quantum Internet", would be faster, more efficient, and more secure than the networks we rely on today.
But if you want a backup of the information?
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