I want to ask the same question with more details "what is the proof on the rotaion of moon around itself"

Question

I already know that we see only one face of the moon during it's circular movement around the earth, but it would have a rotational movement around itself only when the axis of rotation passes through it .as if I rotate a small ball a round my finger, only one side of the ball is facing my finger while the ball is making circular movement around the finger without any rotational movement around it's own axis.
and if we supposed that the earth has stopped it's revolution around itself, then only one face of it will always face the sun independent of its continuous rotation around the sun.
now,if we supposed the sun as the fixed reference point ,and if the moon is making a one revolution around its own axis within one month, and further if someone on the earth is looking to a point on the moon on the 1st day of the month, then ,after two weeks this point will be on the other side of the moon because it would make a half revolution around itself, while we see only one face!

Answer 1

I really cannot understand your question, but I can explain lunar rotation.
The moon DOES rotate, but because of tidal effects, it's rotation and orbit became synchronized.
That means that as it orbits the earth, it rotates keeping the same side facing us at all times.
one month is one lunar rotation and one lunar orbit.

if that isn't what you were asking, try adding details telling people what exactly was your question.

Answer 2

>>as if I rotate a small ball a round my finger, only one side of the ball is facing my finger while the ball is making circular movement around the finger without any rotational movement around it's own axis.<<

Only if you consider your finger a fixed point, but the ball IS rotating relative to the room around it. You could also have the ball stationary and move your finger around it in a circle, and in order to keep one side of the ball facing your finger the ball must rotate around its own axis. But the relative motions are all the same.

>>and if we supposed that the earth has stopped it's revolution around itself, then only one face of it will always face the sun independent of its continuous rotation around the sun.<<

No. If it stops its rotation one face of it will always face a distant star, not the sun.

>>if we supposed the sun as the fixed reference point ,and if the moon is making a one revolution around its own axis within one month, and further if someone on the earth is looking to a point on the moon on the 1st day of the month, then ,after two weeks this point will be on the other side of the moon because it would make a half revolution around itself, while we see only one face!<<

If you stand on the Moon, the whole sky appears to rotate around it. It's a question of relativity. If you take the Moon as the fixed point , it MUST rotate around its own axis to show the motions observed from the lunar surface.

Answer 3

You are making a fundamental error that is really annoying.

The sun is not fixed, the Milky Way Galaxy is not fixed, the earth is not fixed, the moon is not fixed. We have objective evidence that proves this. We have seen the dark side of the moon, we have satellites that watch the earth orbit around the sun and we know from seasonal measurements that the distance between the earth and the sun varies. We have used type 1a supernovas (they all explode at the same level of brightness) to map the distances in our universe and have verified those distances with radio astronomy and other means.

Yet in the face of all this objective evidence you still claim that the “Earth is the fundament and no moving.” You make the biblical claim that all of the universe revolves around the earth, yet in your example you don’t even want the moon to revolve.

How do I pound sense into a mind that rigid with a view that flawed?

There is a fixed mirror on the moon placed there by Apollo Astronauts (yes, the US has landed on the moon). It is used to measure the exact distance between the earth and the moon and has been used so for 30 years. In all that time no matter where in the lunar cycle the moon is the mirror has been in the same place. With respect to the earth it hasn’t moved a thousandth of an inch. The moon is tidally locked to the earth. It keeps the same face toward the earth because the gravity of the earth has totally dictated its orbit and exercises complete control on which face it shows. It keeps the same face shinning on the earth at all times because it has been overpowered by the force of gravity. Any original force that the moon may have had has long been canceled out by the superior force of the earth’s gravity field. Now the final force left on it is a steady, but minor one, which will eventually force it to escape the earth; until it does though the moon is a puppet of the earth because of gravity. Even when the moon finally escapes the earth’s gravity to become its own planet, in billions of years, it will still keep the same rotational period and it will become a slave to the sun.

The moon revolves at the same pace that it orbits because it is a pure puppet of gravity, the proof for it is as plain as the face on the “man in the moon.” The scientific proof is as clear as an encyclopedia and fills a one as well. Yet, still you question it? How can someone who can connect to the Internet and type a legible document be so blind? Do you also feel that there are Martians and the supposed face on the moon was a carving, on the scale of the Great Sphinx, made by aliens? Do you also wonder if time stands still when you leave the room or that if a tree falls in the forest with no one around to hear that it fails to make a noise? I try to not insult people on Yahoo Answers, I honestly try to give a good and accurate answer. I try to get the best answer and to give the best answer as I can, but the blindness that you have expressed is such an outrage that I have to respond.

Answer 4

Here is a animation of what you are discussing:

http://astro.unl.edu/naap/lps/animations/lps.swf

It shows a man standing on a rotating (spinning about it's axis as you say) Earth.

It shows the moon revolving (making a circle) around the Earth.

If you click the Diagram Options "Show Lunar Landmark" it puts a pole on the surface of the moon. The pole is not moving on the surface of the moon (illustrated in the Moon Phase pane).

The pole is always facing the Earth. If you watch the pole through one entire revolution you will see the pole spins about the moons axis (rotates, like the hour hand on a clock going backwards) one time for each revolution.

You may change some of your assumptions after viewing this animation.

Answer 5

In astronomy, the closest we can come to determine 'true' rotation is by comparing it to distant 'fixed' stars.

If we did stop Earth's rotation, it would always face the same distant star. As we orbit around the Sun, the Sun appears to cross all constellations of the zodiac, to make a complete turn in one year. So, an observer on a non-rotating Earth would see the sun rise and, six months later, the sun would set.

If a spot on Earth faced the sun all the time, an observer on the night side would see the stars rise. There would be 6 months between the rise of a star and the setting of that same star. Over a year, the observer would have seen the entire sky and the same star would be back overhead. Conclusion: the Earth's rotation would be 1 turn per year, same as its orbital period around the sun.

If you were to go on the Moon (on the side we see) you'd see the Earth, unmoving. You'd see the stars go around every 27d7h43m12s (on average) and the Sun go around in 29d12h44m03s.

If, like astronomers, you thought that the stars are the closest things to "fixed objects", then you'd say the Moon rotates in approximately 27 days and a third.

Answer 6

The more you think about this, the more confused you are getting. Just take our word for it that because the moon both revolves and rotates in the same time period, the same face of the moon always faces toward the earth.

Several answerers have given you correct answers. You just have to trust us.

For more information along with pictures, diagrams, and animations that may help you understand, try an internet search on "rotation of the moon."

Answer 7

Why would you need proof of something that is self-evident.

The moon orbits the Earth. In doing so, it keeps the same face towards Earth. That is impossible if it wasn’t rotating.

Try it, it aint difficult. Put a chair in the middle of your room. Walk around it, but keep facing the chair. Not only have you orbited the chair, in doing so, you have faced every side of the room, so you have rotated at the same time.

It aint rocket science.