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General Forums => The O' Club => Topic started by: ByeBye on July 16, 2012, 06:45:17 PM

Title: Nothing to see here, move along
Post by: ByeBye on July 16, 2012, 06:45:17 PM
See Rule #10
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: Chalenge on July 16, 2012, 06:51:05 PM
The moon has always been heading away from Earth. Its about 3.8cm a year. The moon does protect Earth from some large body objects. My bet would be on a cyclic Ice Age occuring before the moon is gone in about a billion years.
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: Karnak on July 16, 2012, 06:53:50 PM
This is what I found here:
http://physics.stackexchange.com/questions/25252/when-will-the-moon-reach-escape-velocity

It will never reach such a high velocity. The moon is drifting further from the earth due to tidal acceleration. This process is, at the same time, slowing the rotation of the earth. Once the earth's rotational period matches the moon's orbital period, the earth-moon system will be tidally locked to each other (note: the moon is already tidally locked to the earth), and the acceleration will cease.
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: guncrasher on July 16, 2012, 06:56:40 PM
This is what I found here:
http://physics.stackexchange.com/questions/25252/when-will-the-moon-reach-escape-velocity

It will never reach such a high velocity. The moon is drifting further from the earth due to tidal acceleration. This process is, at the same time, slowing the rotation of the earth. Once the earth's rotational period matches the moon's orbital period, the earth-moon system will be tidally locked to each other (note: the moon is already tidally locked to the earth), and the acceleration will cease.

true and eventually the moon will be stationary i someplace above the earth.  however by then the sun would already be expanding and inner planets would be long gone.


semp
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: 100Coogn on July 16, 2012, 07:26:47 PM
(http://i1211.photobucket.com/albums/cc426/Coogan11/moonblog3-1.jpg)   :cool:

Coogan
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: Skilless on July 16, 2012, 07:29:47 PM
The moon's orbit is elongated.  Haven't you guys heard of the slingshot effect?
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: phatzo on July 16, 2012, 07:42:41 PM
The moon's orbit is elongated.  Haven't you guys heard of the slingshot effect?
with the Earths gravity 6 times greater than that of the moon it will amplify the effect.
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: B4Buster on July 16, 2012, 07:48:15 PM
Makes you happy you won't be one of the ones to see the end of the earth, all those years from now. That would be a pretty helpless feeling.

Of course with nukes, the earth could end tomorrow. You just never really know.
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: Slamfire on July 16, 2012, 07:54:35 PM
We'll be extinct as a species by then, and the earth will be inhabited by 6ft tall biped cockroaches who believe in re-distributive concepts.
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: bj229r on July 16, 2012, 09:26:04 PM
Makes you happy you won't be one of the ones to see the end of the earth, all those years from now. That would be a pretty helpless feeling.

Of course with nukes, the earth could end tomorrow. You just never really know.
I have such thoughts now and again...."am I just wasting my life away"....etc......then the commercial ends and my show comes back on
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: caldera on July 16, 2012, 10:06:34 PM
See Rule #14
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: fbEagle on July 16, 2012, 11:15:41 PM
Well im an expert on physics... (i took it in high school)!!   :D  :rofl

But from my understanding its physically imposible for the moon to leave earths orbit, Unless an object with a mass greater than that of the earth gets within very close proximity to the moon as to "pull" the moon away. If that happens, the moon being gone will be the least of our worries. This object would have to get extremely close to the moon for it to have an effect on it, as most of you know, distance has a much larger impact on the force of gravity than the mass of the object does.
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: titanic3 on July 16, 2012, 11:16:49 PM
We'll be extinct as a species by then, and the earth will be inhabited by 6ft tall biped cockroaches who believe in re-distributive concepts.

10000 years ago, we couldn't even dream of supersonic speeds, stealth, radar or touching the moon. Imagine what humanity would accomplish in a billion year (whatever we evolve into). Intergalactic space travel anyone? :) Sometimes I feel so small in this world.

If humanity does goes extinct, whatever life form that inhabit Earth afterwards will eventually evolve to be like us and perhaps be even more intelligent. I really wish I had a time travel machine. But then I'd think my brain would explode with all the discoveries I would find.
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: zack1234 on July 17, 2012, 12:52:46 AM
 :)


Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: Pigslilspaz on July 17, 2012, 02:13:31 AM
See Rule #14
Title: Re: Is the moon going to leave earth's orbit within several hundred years?
Post by: caldera on July 17, 2012, 06:03:31 AM
See Rule #4