I take it the moon is heavier: on the side closest to the earth:...? so ..... that would possibly slow it to a non rotation dew to rotation balance ok ? but why hasnt it been started rotating by asteroid collision? shouldnt the moon rotate? it cetainly must have rotated when forming from molton magma to have formed so round is the center of the ,moon cold /solid if so then then shouldnt the earths rotatoin spin the moon i dont know but this seems weird wealways see the same side of the moon but i dont think thar is a one sided answer as to why the moon dosent rotate as well as revolve
You're not right at all which is probably why your thread is here in Pseudoscience. The moon does rotate, just not on it's axis. The moon is in orbit with the earth, we might well see one side constantly because of the Gravitational effect of both the moon and earth combining, however if you were to observe the moon from another planet, you'd probably see 3/4's of it's surface as it rotates from it's orbit. To my knowledge (obviously feel free to surf the internet to check on it), the reason that it doesn't spin on it's axis is because of it's size. Since it's small it's cooled relatively quickly compared to the earth, this means that it's core isn't as molten as the earth, therefore gravity is effecting a mostly solid mass rather than a solid crust and molten core. I guess you could say the earth spins because it has both a moon and magma flow.
Without going into any of the details at all, it's actually quite easy to tell that the Moon does rotate. If it didn't, we'd see the back and sides as it revolved around the Earth.Please Register or Log in to view the hidden image!
Hi, Stryder, Just a minor point of correction. The Moon and magma flow has nothing to do with causing Earth to rotate. It began rotating as it was formed from an accretion disk due to conservation of angular momentum. (That's why all the planets and even the Sun rotates.)
Wrong. It does spin on its axis, it's just that its rate of spin coincides with the time it takes to revolve around the Earth (as ReadOnly has pointed out.) This is due to tidal locking between the Earth and the moon.
Boom, bang-a-bang: collision with a large body in the case of Uranus for sure. Additional possibilites exist for Venus.
Ophiolite, In honesty if you were to model it's spin it wouldn't be on it's axis, it's spin would actually be on the earth's axis at least from 3D modelling. (actually to be honest, it's axis, the earths axis, even the suns axis wouldn't be a static point of pivot, but it's all relative really) Although to be perfectly honest, as I statement in my initial message "surf the internet yourself", it's not up to me to give a correct definition, it's up to the original OP to search out other evidence and come to a conclusion. (considering most people post here without references we'd be Third-person or worse evidence, notoriously unreliable.)
I think it rotates with the Earth because it came from the Earth. If it was a separate body captured by Earth's gravity, it would have it's own rotational speed, independent of our's.
Alexandre C. M. Correia & Jacques Laskar, "The four final rotation states of Venus", Nature 411, 767-770 (14 June 2001) http://www.nature.com/nature/journal/v411/n6839/full/411767a0.html
The moon is rotating with respect to inertial an inertial reference frame, one revolution per sidereal month. The moon isn't rotating from the perspective of an Earth-fixed observer because it is tidally locked with respect to the Earth. This is not the consensus view. It flies in the face of observed data and common sense. Latter problem first: What could have made the Earth rotate so fast as to split off a piece of itself to form the Moon? The other problem: The Moon's orbit is not in the Earth's equatorial plane. You are ignoring gravity gradient torque.
That is marginally true, I think, but it is not the reason why the moon always faces the same side towards Earth. If anything, it is a consequence of that. You'd need a very large asteroid to significantly affect the rotation. And any rotation that started would gradually be damped out again. It does! It rotates about its axis about once a month - the same amount of time it takes to revolve once around the Earth. The reason for this is that the Earth creates tides on the Moon (tides of land, not water, and not as large as the water tides we see on Earth). These tides tend to slow the Moon's rotation until it is synchronised with its revolution around the Earth. It does rotate on its axis (relative to the distant stars) - once every month. This is wrong. The Moon originally would have rotated faster, but tidal forces have caused its rotation to slow and become locked with its revolution around the Earth. Mars, like the Moon, probably doesn't have a molten core, but it rotates just like the Earth. Rotation has nothing to do with magma flow. In astronomy, spin on its axis is called "rotation". Orbiting around another object is called "revolution". The moon both rotates and revolves around the Earth. For a while, but tidal locking would still apply over time.
^ Evidence that the universe tends towards order and not chaos. Please Register or Log in to view the hidden image!
it is because the earth and moon are exchanging energy see casimir it is the same reason the observations of galaxies show that some stars are moving far too fast on the outer portions, than what the math predicted with a black hole in the middle of the galaxies http://en.wikipedia.org/wiki/Galaxy_rotation_curve the mass at them close points between the arms is associating (exchanging energy) the gravity comes from the entangled energy between structures, the more they associate the greater the potential (casimir) here is science on the subject http://www.weizmann.ac.il/chemphys/gershon/rand_scat.html
read this http://physicsworld.com/cws/article/print/9747 and think about the earths magnetosphere, the moon within it moving and then the sun offering the outside source of additional energy you can make your own determinations from there enjoy
If I stand at the north pole of the moon the stars will turn around me. so the moon does revolve on its axis. The only reference frame that matters for discussing the revolution of a body is one centred on the body.
