What makes The Earth "spin"

It is spinning, but at the same rate of it's orbit around Earth, making it
look as if it is not spinning. It does always keep the same face, however
becase of this spin. If it weren't "spinning" then we would be able to see
the oposite side of the moon every 13-15 days or so.
"Greg Neill" wrote in message
news
"Darrell" wrote in message
...
What do you mean the "other's" spin. The moon is rotating, but isn't
spinning.

Sure it is. It's spinning at a rate of once per month.
Otherwise it wouldn't always keep the same face towards
us.

Jonathan Silverlight wrote in alt.astronomy:


I've asked this before, but what _is_ it about webtv?

As suggested by me before it could well be in webtv's EULA to post this
kind of messages in a newsgroup of your choice at least once a week.



--
CeeBee


Uxbridge: "By God, sir, I've lost my leg!"
Wellington: "By God, sir, so you have!"


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Jonathan Silverlight wrote in alt.astronomy:


I've asked this before, but what _is_ it about webtv?

As suggested by me before it could well be in webtv's EULA to post this
kind of messages in a newsgroup of your choice at least once a week.



--
CeeBee


Uxbridge: "By God, sir, I've lost my leg!"
Wellington: "By God, sir, so you have!"


Google CeeBee @ www.geocities.com/ceebee_2

Try a web search under 'tidal locking' and 'mascon'. Mascon is short for
mass concentration, an assymetrc distribution of mass within the moon
that led to tidal locking. The term originated with the Apollo program,
when the lunar orbit was found to be slightly 'bumpy'. oc

Anti-spam address: oldcoot88atwebtv.net
Change 'at' to@

Try a web search under 'tidal locking' and 'mascon'. Mascon is short for
mass concentration, an assymetrc distribution of mass within the moon
that led to tidal locking. The term originated with the Apollo program,
when the lunar orbit was found to be slightly 'bumpy'. oc

Anti-spam address: oldcoot88atwebtv.net
Change 'at' to@

"Darrell" wrote in message
...
What do you mean the "other's" spin. The moon is rotating, but isn't
spinning.
Both the Earth and the Moon are spinning. The Moon is (at present), tidally
locked to the rotation of the Earth, so it spins 'in time' to the Earth, but
it still spins. The same effect is working the other way, to a much lesser
extent, and would eventually slow the Earth's rotation down, but not till
long after the Solar system has died...
Your comment is a bit like saying 'the top is rotating, but not spinning'.
Rotation around an axis, _is_ a spin.

Best Wishes

"Roger Hamlett" wrote in message
...

"Guy you lovetoHate The" wrote in message
...

The Moon.
No.
The simple answer is, to remember that without friction, an object will
spin
forever unless there is something to influence it. The junk that came
together to form the Solar system was all moving, and the spins this
imparted onto the objects as they formed, has been retained, _except_
where
something else influenced them. The collision that led to the formation
of
the Moon, will have changed the spin on the objects concerned, but the
objects were spinning before this. Afterwards, the gravitational pull
between the Earth and the Moon, have both influenced the other's spin,
but
didn't 'cause' it.
In a sense, not spinning, would be the unusual case.

Best Wishes

"Darrell" wrote in message
...
What do you mean the "other's" spin. The moon is rotating, but isn't
spinning.
Both the Earth and the Moon are spinning. The Moon is (at present), tidally
locked to the rotation of the Earth, so it spins 'in time' to the Earth, but
it still spins. The same effect is working the other way, to a much lesser
extent, and would eventually slow the Earth's rotation down, but not till
long after the Solar system has died...
Your comment is a bit like saying 'the top is rotating, but not spinning'.
Rotation around an axis, _is_ a spin.

Best Wishes

"Roger Hamlett" wrote in message
...

"Guy you lovetoHate The" wrote in message
...

The Moon.
No.
The simple answer is, to remember that without friction, an object will
spin
forever unless there is something to influence it. The junk that came
together to form the Solar system was all moving, and the spins this
imparted onto the objects as they formed, has been retained, _except_
where
something else influenced them. The collision that led to the formation
of
the Moon, will have changed the spin on the objects concerned, but the
objects were spinning before this. Afterwards, the gravitational pull
between the Earth and the Moon, have both influenced the other's spin,
but
didn't 'cause' it.
In a sense, not spinning, would be the unusual case.

Best Wishes

This post fits in nicely because I'm thinking a lot about spin. I know
Jupiter makes a complete turn in just under 10 hours.,and Venus takes
243 days to make a complete turn(spin). What are the best theories to
account for such a fast and slow spin? Maybe if Venus spun faster it
could cool down a little better at its equator?? I think I can use
Photolysis here as I did on Mars With all that heat within Venus"s
atmosphere that all the surface water evaporated high in the upper
atmosphere,and this water vapor got hit by the ultraviolet radiation
from the Sun and split the water molecules into hydrogen and oxygen.
The hydrogen bleed off into space,and the oxygen combined with carbon to
form carbon monoxide,and carbon dioxide. It must have volcanoes so
sulfur dioxide,and iron oxide chemicals should make up a good
percentage of its surface,that must be sandy Bert.

This post fits in nicely because I'm thinking a lot about spin. I know
Jupiter makes a complete turn in just under 10 hours.,and Venus takes
243 days to make a complete turn(spin). What are the best theories to
account for such a fast and slow spin? Maybe if Venus spun faster it
could cool down a little better at its equator?? I think I can use
Photolysis here as I did on Mars With all that heat within Venus"s
atmosphere that all the surface water evaporated high in the upper
atmosphere,and this water vapor got hit by the ultraviolet radiation
from the Sun and split the water molecules into hydrogen and oxygen.
The hydrogen bleed off into space,and the oxygen combined with carbon to
form carbon monoxide,and carbon dioxide. It must have volcanoes so
sulfur dioxide,and iron oxide chemicals should make up a good
percentage of its surface,that must be sandy Bert.

Right what I meant was, and let me clarify, that the Earth is orbiting but
not spinning simmular to the Earth spinning. Sure the Moon is spinning and
it make one complete rotation with one complete orbit around the Earth.
Like you said, at present, it is tidally locked to the rotation of the
Earth. Locked being key, meaning that we can see only one face of the moon.
It is not spinning in a way that we on Earth get to see it spin. It's a
concept that I think some fail to grasp.

"Roger Hamlett" wrote in message
...

"Darrell" wrote in message
...
What do you mean the "other's" spin. The moon is rotating, but isn't
spinning.
Both the Earth and the Moon are spinning. The Moon is (at present),
tidally
locked to the rotation of the Earth, so it spins 'in time' to the Earth,
but
it still spins. The same effect is working the other way, to a much lesser
extent, and would eventually slow the Earth's rotation down, but not till
long after the Solar system has died...
Your comment is a bit like saying 'the top is rotating, but not spinning'.
Rotation around an axis, _is_ a spin.

Best Wishes

"Roger Hamlett" wrote in message
...

"Guy you lovetoHate The" wrote in message
...

The Moon.
No.
The simple answer is, to remember that without friction, an object
will
spin
forever unless there is something to influence it. The junk that came
together to form the Solar system was all moving, and the spins this
imparted onto the objects as they formed, has been retained, _except_
where
something else influenced them. The collision that led to the
formation
of
the Moon, will have changed the spin on the objects concerned, but the
objects were spinning before this. Afterwards, the gravitational pull
between the Earth and the Moon, have both influenced the other's spin,
but
didn't 'cause' it.
In a sense, not spinning, would be the unusual case.

Best Wishes