Why doesn't the moon spin?

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posted on Dec, 29 2012 @ 05:31 PM
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Originally posted by Tom Bedlam
It does spin.

www.pbs.org...

Although from Earth's view the moon doesn't rotate

www.digipro.com...

Why Doesn't the Moon Rotate? In comparison, the tidal effect on the Moon is static because the Moon no longer rotates in relation to the Earth.

wiki.answers.com...

Does the Moon spin on its axis? No it doesn't ! If it was spinning/ rotating (on its own axis, by definition), and we could somehow stop its orbit around the earth (or even suddenly straighten it into a line), it should then continue spinning. It obviously won't. It will just sit there angularly motionless as it always has.

www2.enarm.org...

The reason why the Moon doesn’t rotate is because of weights that are placed at both poles which are magnetic in nature. There are 4 pyramids on the Moon, with 1 being at the far sides equator.



There is more than one tidal locking mode. Mercury, for example, is resonantly locked to the Sun at a 3:2 ratio.

en.wikipedia.org...

It was thought for some time that Mercury was tidally locked with the Sun. This was because whenever Mercury was best placed for observation, the same side faced inward. Radar observations in 1965 demonstrated instead that Mercury has a 3:2 spin–orbit resonance, rotating three times for every two revolutions around the Sun, which results in the same positioning at those observation points. The eccentricity of Mercury's orbit makes this 3:2 resonance stable.
edit on 29-12-2012 by Anunaki10 because: (no reason given)




posted on Dec, 29 2012 @ 06:18 PM
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Originally posted by Anunaki10


Although from Earth's view the moon doesn't rotate



Key word "Earth's point of view". If it didn't rotate, you would see the entire surface of the Moon, depending on how far west or east you traveled.



www.digipro.com...

Why Doesn't the Moon Rotate? In comparison, the tidal effect on the Moon is static because the Moon no longer rotates in relation to the Earth.



Again, same as the previous one, just different phrasing, here the key phrase "in relation to Earth".



Does the Moon spin on its axis?


Wikianswers is not exactly a great reference. Or the next two either...




4 pyramids on the Moon, with 1 being at the far sides equator.


That one's not worth bothering to respond to...



There is more than one tidal locking mode. Mercury, for example, is resonantly locked to the Sun at a 3:2 ratio.
...
The eccentricity of Mercury's orbit makes this 3:2 resonance stable.


Yep, good to see you agree with me here.



posted on Dec, 29 2012 @ 08:15 PM
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Originally posted by Anunaki10
www.pbs.org...

Although from Earth's view the moon doesn't rotate


OK. So what if from earth's view the Moon does not rotate? From outside the earth, the Moon DOES rotate.

From The Earth's view, the Sun and stars look to revolve around the earth -- but they really don't.



posted on Dec, 29 2012 @ 09:05 PM
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Originally posted by Bedlam

Originally posted by Anunaki10

Although from Earth's view the moon doesn't rotate


Key word "Earth's point of view". If it didn't rotate, you would see the entire surface of the Moon, depending on how far west or east you traveled.

You misunderstand something here,

Although from Earth's view the moon doesn't rotate

which means that the moon is tidally locked to the Earth, which again means that Moon does NOT rotate on it's own axis in relation to the Earth...


www.digipro.com...

Why Doesn't the Moon Rotate? In comparison, the tidal effect on the Moon is static because the Moon no longer rotates in relation to the Earth.



Again, same as the previous one,


You misunderstand something here again, so let me repeat this to you since you are struggling trying to understand that
www.digipro.com...

Why Doesn't the Moon Rotate? In comparison, the tidal effect on the Moon is static because the Moon no longer rotates in relation to the Earth.



Wikianswers is not exactly a great reference.

It's at least thousands of times more reliable than you will ever be, and let me repeat it since you are struggling trying to understand that
wiki.answers.com...

Does the Moon spin on its axis? No it doesn't ! IF it was spinning / rotating (on its own axis, by definition), and we could somehow stop its orbit around the earth (or even suddenly straighten it into a line), it should then continue spinning. It obviously won't. It will just sit there angularly motionless as it always has.



That one's not worth bothering to respond to...

Don't expect me to believe you on that, i think you are lying again...
edit on 29-12-2012 by Anunaki10 because: (no reason given)



posted on Dec, 29 2012 @ 09:08 PM
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reply to post by Soylent Green Is People
 

But the Earth doesn't rotate relative to a geostationary satellite. Doesn't that means the Earth isn't rotating either?



posted on Dec, 29 2012 @ 09:19 PM
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Originally posted by Anunaki10


You misunderstand something here,

Although from Earth's view the moon doesn't rotate

which means that the moon is tidally locked to the Earth, which again means that Moon does NOT rotate on it's own axis in relation to the Earth...


Yes! Glad to see you constantly keep agreeing with me. It does not rotate with relation to the Earth. That means it rotates once per orbit around the Earth. Otherwise, if it didn't rotate at all, it WOULD rotate with relation to the Earth.




In comparison, the tidal effect on the Moon is static because the Moon no longer rotates in relation to the Earth.


As before, this is exactly right. It doesn't rotate with relation to the Earth, which means it rotates once per orbit.



It's at least thousands of times more reliable than you will ever be, and let me repeat it since you are struggling trying to understand that


Simple spatial relationships are tough for you, aren't they? I imagine there's some sort of animation on the net for those that struggle with this. You ought to look for one.




Don't expect me to believe you on that, i think you are lying again...


Four out of five Nibirunians agree with me.



posted on Dec, 30 2012 @ 10:57 AM
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reply to post by Sliick
 


In addition to what Phage said, you can read more about this phenomenon at en.wikipedia.org...

It's very common in the Solar System. When the Moon formed, it did rotate (as seen from Earth) but gradually got tidally locked to Earth. This tidal effect also causes the Earth's spin to slow down.



posted on Dec, 30 2012 @ 11:21 AM
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I've read most of these "moon rotating" topics and they seem to be just be arguing semantics.

I think everyone agrees that the moon rotates on its own axis.

Does the Moon rotate in relation to the Earth? I think you can argue either way on this because it's an ambiguous statement.

Either way the Earth rotates about its own axis at the equator at 1030 mph
The moon rotates about its own axis at its equator at 10.3 mph



posted on Dec, 30 2012 @ 11:35 AM
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reply to post by Anunaki10
 


As shown in another thread, those links from which you cherry picked lines from go on to say that the moon does rotate on its axis.

Do you not read your links further than the one line, that if misread, could support your view that the moon doesn't rotate?

"From Earth's point of view" is like the "key word you look for ignoring the rest of the information.

Or is it that you don't want the truth?
From you pbs link:

Although from Earth's view the moon doesn't rotate, with respect to the sun it does. Take a look at the animation above. Look only at the moon. (The red dot marks a fixed point on the moon's surface.) See how it does rotate on an axis?


From your digipro link;

You might be struggling against the nuances in the meanings of the words "rotate" and "revolve." The Moon ROTATES about its axis at exactly the same rate as it REVOLVES around the Earth. That's an important point about tidal locking.


From your wikipedia link:

For example, the same side of the Earth's Moon always faces the Earth. A tidally locked body takes just as long to rotate around its own axis as it does to revolve around its partner. This causes one hemisphere constantly to face the partner body.


Your other two links, wikianswers and the other from Alex Collier, are not accurate.
edit on 12/30/2012 by Chamberf=6 because: (no reason given)





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