Why Is The Moon Not Spinning Then?
- Thread starter common_sense_seeker
- Start date
Earth spins like a top. The moon doesn't. Correct?
Does the Earth rotate about its axis? Yes. As it goes about the Sun. Does the Moon rotate about its axis? Yes. As it goes around the Earth. It just happens that its 'day' (time to go around its axis) is the same length as it's 'year' (time to go around its parent).
If the Earth's day was the same length as a year, one half would always face the Sun and one half wouldn't. Doesn't mean the Earth isn't spinning on its axis.
If the Earth's day was the same length as a year, one half would always face the Sun and one half wouldn't. Doesn't mean the Earth isn't spinning on its axis.
It makes perfect sense to me, but it still seems that it would be relative rotation, while not "real" rotation.
Does the ball at the end of the string rotate?
Again, if you are hovering above the ball it would appear that the ball is rotating and I am orbiting around the ball, but that's just not the case.
It seems to me that since the moon is trapped in an orbit around the earth, the earth-bound observer would be the correct perspective.
The ball on the piece of string is also rotating.
If you were a tiny observer on the ball where the string is tied to the ball, the room would appear to be spinning around you.
I am shying away from the maths, but that's because I believe the only way to really understand whether a model is correct or not is by computer simulation. Something akin to the work being done at Durham University. Although their model seems to be an unweildy joke, which manages to produce pictures similar to those revealed by the Hubble Telescope.
Ophiolite
Valued Senior Member
So what equations would you use in your simulation?
No simulations at all, I suspect, because that naturally requires equations.
And speaking of suspicions, I'll go ahead and state the obvious: the poster is yet another kid trying to pose as an adult. Silly attempt, actually.
That's the first comment that's made me laugh.
AL
AL
That's the first comment that's made me laugh.
AL
Can you show me to be incorrect? You certainly show over and over that you know practically nothing about what you claim to have a degree in, plus the fact that modeling requires equations to run and computer simulations require math - yet you say you shy away from math.
Who else but a kid could be so self-contradictory and not even realize it?
No knowledge, no math = young kid! You've exposed yourself with no help needed from others.
Ophiolite
Valued Senior Member
Which is exactly why I asked the question and why I shall continue to ask it until one of three things happen:No simulations at all, I suspect, because that naturally requires equations.
1) He provides the equations.
2) He admits his level of ignorance.
3) He disappears.
Do not avoid the question CommonSenseSeeker, which equations would you use in your simulation?
The result of 25 years work isn't for free.
AL
AL
The result of 25 years work isn't for free.
AL
Ah, well - yet another "would-be scientist" bites the dust.
I wonder sometime why these forums attract so many impostors? While anonymity can allow anyone to claim to be anything they want to be, they simply aren't intelligent enough to realize that their very on words will always convict them of being a fraud.:shrug:
What a waste!
My simulation model is that of the beginning of creation followed by the big bang, incidentally.
Can we not get back onto the original thread idea?
AL
Can we not get back onto the original thread idea?
AL
Ditto.
I'm not trying to impress you. My scientific mind is a good one, if a little unconventional. Most physicists at the top of their profession welcome alternative thinking. It's how most of history's great scientific discoveries were made.
AL
AL