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Impacts of Rotation of Moon

08/21/2017 5:20 PM

As I never studied Astrophysics during University years, I am asking the following from a naive standpoint. After watching the "great" [TIC] solar eclipse of 2017, I started wondering about a few facts about the moon:

I understand the observable face of the moon is directed towards us continually, so I assume the unobserved face would be generally be directed towards the sun and would be very hot given there is minimal atmosphere.

I also wondered what different impacts the moon's rotation has on the earth.

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#154
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Re: Impacts of Rotation of Moon

08/31/2017 11:21 AM

If you are not satisfied with that understanding of reality, then you must become something of a mathematical historian, to see where the concepts originated, such as Complex numbers

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#155
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Re: Impacts of Rotation of Moon

08/31/2017 12:35 PM

I never said I was not satisfied with that "understanding". What I said, was that I was not satisfied with the explanation. I do understand that "laying down the law" is an effective way to avoid explanations, tho. Very efficient, but not very accommodating. When I don't know what I'm doing, I usually find something else to do. And that's not as complex as the square root of -1. But it might be as interesting as those Universal Historians who came up with the Big Bang Theory.

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#157
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Re: Impacts of Rotation of Moon

08/31/2017 3:49 PM

"...And that's not as complex as the square root of -1...."

√-1 isn't very complex. It is about the least complex while technically still qualifying as complex. It is completely imaginary. It only cheats its way into complexity by claiming that the lack of a real component is actually the addition of zero as the real component.

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#158
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Re: Impacts of Rotation of Moon

08/31/2017 4:02 PM

Believe it or not, I actually understand what you're saying. But, is that what you're saying that I'm doing?

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#156
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Re: Impacts of Rotation of Moon

08/31/2017 1:21 PM

I did not know Illinois went so far south that physics doesn't reach there.

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#159
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Re: Impacts of Rotation of Moon

08/31/2017 4:19 PM

I know how to memorize and apply laws. However, that does not bring understanding. In the Navy, I was put on mandatory night-study just because of the questions I asked. I aced the test. But, my questions were never answered. Unless I'm confident that I got it right, I cannot fully participate in it. All I can do is acknowledge that's it's possible and obey orders (right or wrong). In the Navy, the upper command is responsible for the orders they give. As a civilian, I'm responsible for the "truths" I pass on. I just want to make sure that they ARE true before I pass them on. That's called Quality Control.

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#160
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Re: Impacts of Rotation of Moon

09/01/2017 4:01 AM

Twiggit? Or Knuckledragger, perhaps?

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#161
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Re: Impacts of Rotation of Moon

09/01/2017 10:17 AM

Well, sometimes you have to get your hands/reputation dirty to get any work/progress done. I won't deny it. I am what I am. I'm just trying to muddle thru life like everyone else is. But I am trying. I just hope that I do get somewhere, tho. Life is dynamic, and it's direction is important. Maybe life itself is also a vector. What vector are you on? I wish you luck. Just remember that it's your life and only you can live it. Maybe our vectors will cross again someday. And on that note, here's another poem I wrote:

The Modern Columbus
There comes a time when you're thoughts start thinning.
And writer's-block won't let you start by beginning.
So I'll try something new, and by doing some pretending,
I'll trick my brain, and I'll start by ending.
That goal has paid its toll, and now my brain can wander.
Free to explore, I'll go some more, A lllooooonnngg way out yonder.
I don't have to think out-of-the-box, if there is none.
Going to infinity is easy, and might even be fun.
There's no time for common-place pretensions.
So don't tell me there are no unknown dimensions.
I beg your pardon, for not regardin', common practicality.
But it might be cuter, if I take my computer, into criticality.
So now I'll retire, that old beat-up tractor,
Latch the rods, and boot-up the high-tech reactor.
What was known, now has flown, back into the past.
And something grew! All brand new! Now is coming up fast!
Faster than the speed of light, I know it must be best.
To leave all behind, as far as east is from west.
Something new up ahead, and I'm really ganing ground.
Oh! you'll never believe what it is that I have found!
Like the world, Time has curled, into a revolving globe!
What I sent, came back bent. All the data from that probe!
Columbus had an idea, and sailed to prove it true.
He sought something old, but found something new.
But unlike Columbus, all truth be told,
I sought something new, and found something old.
Try as I might to leave from where I departed,
I find myself right back where I started.

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#130
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Re: Impacts of Rotation of Moon

08/29/2017 9:46 AM

Insert brain in toilet.

reach for toilet flush lever

push lever

reset

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#119
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Re: Impacts of Rotation of Moon

08/28/2017 11:38 AM

Putting that word in bold caps was quite intentional! It reflects the extremely high confidence I have in the correctness of the mathematics regarding energy (in whatever form) and mass in classical physics.

Now I am an old classical physicist, with very little understanding of anything beyond Einstein's theory of relativity. If quantum or any other physics shows a discrepancy with classical physics, I'm clearly open to new ideas, but so far, I haven't seen any that affect objects on a macroscopic scale.

That is hardly a closed mind!

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#124
In reply to #119

Re: Impacts of Rotation of Moon

08/28/2017 1:06 PM

The dot product of any two vectors is a scalar (or zero).

Think this could largely all be clatified by:

KE = 1/2 × mass × speed × speed

(sorry can't do better on my phone).

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#107
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Re: Impacts of Rotation of Moon

08/28/2017 5:01 AM

Thanks for saying it. We need some education here and your contribution adds some of that.

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#111
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Re: Impacts of Rotation of Moon

08/28/2017 9:24 AM

Well, to nit pick (since this thread started with picking on nits),

all orbits are technically elliptical, just that some have an eccentricity near unity (nearly circular).

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#121
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Re: Impacts of Rotation of Moon

08/28/2017 11:51 AM

Sort of true...

To nit pick even further, no orbit is truly elliptical, as there are always other bodies distorting the ellipses. ...then of course there must be some frame of reference.

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#123
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Re: Impacts of Rotation of Moon

08/28/2017 12:01 PM

Yes, and we all know that all we have to solve these many-body orbits is perturbation theory. No closed form solution exists for even a three body interaction, at least that what the professors told me.

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#129
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Re: Impacts of Rotation of Moon

08/29/2017 8:07 AM

Elipsoidic? Elipsoidal? Elipsoidical? Elipsoidicalish?

Quasi-elipsoidicalish....yup. Nailed it.

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#134
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Re: Impacts of Rotation of Moon

08/29/2017 11:26 AM

You forgot the supercalifragilistic prefix!

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Re: Impacts of Rotation of Moon

08/23/2017 9:21 AM

No it is not. Velocity squared has the properties of a scalar, not a vector.

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Re: Impacts of Rotation of Moon

08/22/2017 10:57 AM

No, the earth is not flat.

Been out to Pinterest lately? There is a group of flat earth advocates with multiple posts (pins) on that site and some of their logic is almost scary. Yes it can be refuted, but it is very well thought out. Some is actually a bit tough to refute. What makes it scary is one realizes how easy it is to twist physical laws and personal observations to support incorrect theory and actually seem to make sense. No wonder the church could persecute the early round earth believers. (somehow the site decided I needed to be aware of these posts, so I receive updates and new posts regularly - ?????)

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#21
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Re: Impacts of Rotation of Moon

08/22/2017 11:13 AM

Great, now they're going to claim their membership is growing...

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#22
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Re: Impacts of Rotation of Moon

08/22/2017 11:17 AM

The movement seems to be gaining national prominence.

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#23
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Re: Impacts of Rotation of Moon

08/22/2017 11:32 AM

Those ones are from the "flipped out" side of the earth. LOL

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#24
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Re: Impacts of Rotation of Moon

08/22/2017 3:25 PM

The church persecuted early round earth believers?

Seriously?

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#25
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Re: Impacts of Rotation of Moon

08/22/2017 3:51 PM

It is strange, but true. I would have thought God would have mentioned the "orbs" in the heavens somewhere in scripture, but sometimes people only read what they want to hear.

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#78
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Re: Impacts of Rotation of Moon

08/23/2017 4:18 PM

What? "You write "The moon causes the ocean tides and also has caused the earth to not be round. No, the earth is not flat. I don't recall exact numbers but the earth's diameter from center to equator is several miles more than the diameter from center to pole."

It is true the moon is the main actor in causing tides but the sun also makes a contribution, about half as large However, the difference in diameter between when measuring from pole to pole compared across between two place of the earth on opposite sides of the "sphere" is not caused by the moon but by the "centrifugal force" from the rotation about the earth's axis. The earth itself also is distorted somewhat by the moon's gravitation because like the tides in the water, the gravitational gradient will add some distortion to the solid parts of the earth but the biggest contribution comes from the rotation of the earth itself.

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#8

Re: Impacts of Rotation of Moon

08/21/2017 8:59 PM

I understand the observable face of the moon is directed towards us continually, so I assume the unobserved face would be generally be directed towards the sun and would be very hot given there is minimal atmosphere.

You've probably heard the expression "The dark side of the moon". It's totally bogus, there is no side of the moon that is always dark and no side that always faces the sun. As the moon revolves around the earth, it turns all sides to the sun during a "month". There is a face that was never observed from earth until a space probe was sent to photograph the far side.

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#11
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Re: Impacts of Rotation of Moon

08/22/2017 3:03 AM

An oblate spheroid cannot be said to have a <...side...>. The term implies a flat face whereas flatness, even relative flatness, is a property the moon does not possess.

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#14
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Re: Impacts of Rotation of Moon

08/22/2017 7:48 AM

It's just an expression that we have on this side of the earth...

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#17
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Re: Impacts of Rotation of Moon

08/22/2017 10:30 AM

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#18
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Re: Impacts of Rotation of Moon

08/22/2017 10:30 AM

The Earth does not take sides in these disputed matters. LOL

Neither does the moon.

By the way, has anyone seen the "weld" lines on the moon?

Some texts describe this as literal, others as an optical illusion, others as a reference to a future prophetic event in the end of days.

I have no opinion, since I have neither read these accounts, but have only been told second hand, and have not personally witnessed any lines on the moon...

Opinions?

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#19
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Re: Impacts of Rotation of Moon

08/22/2017 10:50 AM

I think they're the same class of objects as Martian "canals" (canali).

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#101
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Re: Impacts of Rotation of Moon

08/26/2017 2:44 PM

Europa has some impressive lines...

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#110
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Re: Impacts of Rotation of Moon

08/28/2017 9:23 AM

So you are saying the confusion lies in which moon was separated in twain?

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#28
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Re: Impacts of Rotation of Moon

08/22/2017 5:07 PM

Are you here on the inside? Or over there on the outside?

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#30

Re: Impacts of Rotation of Moon

08/22/2017 10:50 PM

During Full moon the other side of the moon is always in dark... One lunar day is about half a month.

Yes, Moon soil can get very hot when facing the Sun. The NASA moon walking suites are usually heat resistant. So one should be able to step on the moon during the moon day.

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#35
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Re: Impacts of Rotation of Moon

08/23/2017 3:08 AM

"....One lunar day is about half a month..."

How do you figure? Should be about 28 Earth days.

If you meant 'about half a lunar month', you've got my attention.

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#36
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Re: Impacts of Rotation of Moon

08/23/2017 5:12 AM

Guess it depends what's meant by "about".

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#71
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Re: Impacts of Rotation of Moon

08/23/2017 2:52 PM

Indeed, and what is meant by 'meant', too.

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#31

Re: Impacts of Rotation of Moon

08/22/2017 10:50 PM

Even tho it always faces US, it doesn't always NOT face the sun. It also orbits around Earth, and therefore sometimes it faces both us and the sun. That's when the Full Moon is out. The unobserved face is only directed toward the sun during a NEW Moon, like yesterday for the eclipse. If it always faced the sun, then we'd never see it and it would be invisible to us from Earth.

As far as the rotation goes, I don't even know if it has a magnetic field around it or not. I don't even know what direction it orbits us or how fast. Whether it's orbit is complementary or contradictory to Earth's. But it would be interesting to find out.

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#33
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Re: Impacts of Rotation of Moon

08/22/2017 11:13 PM

There is an alien colony on the far side of the moon...

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#104
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Re: Impacts of Rotation of Moon

08/27/2017 2:58 PM

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#113
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Re: Impacts of Rotation of Moon

08/28/2017 9:26 AM

If they live there, how can they be aliens? Just saying....I think they are "western lunatics".

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#45
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Re: Impacts of Rotation of Moon

08/23/2017 9:07 AM

I seem to recall that the moon is sufficiently dead geologically speaking (although not entirely dead) that there is no rotating mass of ferromagnetic material to create any significant magnetic field.

If viewed above the planetary "plane", the moon rotates counterclockwise around the earth, while the earth rotates counterclockwise around the sun. Above being defined for now as earth magnetic north, or toward Polaris.

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#91
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Re: Impacts of Rotation of Moon

08/24/2017 11:03 AM

I interpret "that there is no rotating mass of ferromagnetic material to create any significant magnetic field." to mean you associate the magnetic field of the earth with ferromagnetism of the iron core. In fact, you are right that iron is ferromagnetic, of course, but the people who study that magnetism find that it is currents in the flow of the liquid parts of the iron which produce the magnetism we observe. This would probably also give a clue about why the magnetic poles wander with time and even fully reverse the main direction of the field now and then. Incidentally, this can be a handy feature for dating rocks which freeze in a field of their own with its orientation determined by the time when the material passes through the Curie temperature.

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#92
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Re: Impacts of Rotation of Moon

08/24/2017 11:19 AM

Good point, at least you caught my drift.

The moon is not considered to have a molten liquid core at this time.

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#115
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Re: Impacts of Rotation of Moon

08/28/2017 10:19 AM

What is this about rotating ferromagnetic materials causing a planet's or a satellite's magnetic field? If there were magnetized ferromagnetic material it could supply a field whether rotating or not just as magnetite can be magnetic over all (and is magnetic at a small scale if ferromagnetism is possible). The field of the earth is caused by the flow of molten iron and currents in outer parts of the core but the inner core is solid. I do not know whether the solid core can be ferromagnetic nor do I know whether anybody can tell us that (do we have labs able to measure iron at the combination of temperature and pressure at the center of the earth, or calculations to reliably give an answer about whether ferromagnetism is possible in the core? I suspect the huge temperature in the core would prevent the development of ferromagnetism.), but the core is far, far above the Curie temperature of iron as we experience iron, and above the Curie temperature there is no ferromagnetism. Conversely, we know the magnetic field of the earth changes direction now and then, on a very long time scale, and you can be sure that is not caused by flipping 180° by a ferromagnetic core. Please see Wiki for up to date discussions of the source of the field not only of the earth but a mechanism able to help understanding why other bodies have magnetic fields. A rotating ferromagnetic core is not the cause.

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#117
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Re: Impacts of Rotation of Moon

08/28/2017 10:53 AM

Well you got me on that one. Clearly, I am full of "it". What I should have stated:

Molten material that would be ferromagnetic if solid is not intrinsically magnetic, but relies on its motion to produce an electric current (triboelectricity???), resulting in a net magnetic field in accordance with Faraday's Laws. If this material were solid, and somehow externally magnetized so the summation of all domains is a net magnetic field, then there would be a steady residual magnetic field at the surface.

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#120
In reply to #117

Re: Impacts of Rotation of Moon

08/28/2017 11:39 AM

It is not triboelectricity. The mix of conducting, flowing material along with a bit of magnetism to get it started makes a geodynamo which then runs by itself. There is an interesting question how this machine gets its initial magnetic field. As far as I can tell, we must still take a guess or two and look at which look possible as answers. One suggestion is that "once upon a time" the sun's magnetic field did it, but we do not yet know. And the sun has no solid stuff to entertain a ferromagnetic origin for its field.

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#122
In reply to #120

Re: Impacts of Rotation of Moon

08/28/2017 12:00 PM

Could be that static charges exist within this flowing mass, thus exists as electric current flowing? That current, along with frictional charge transfer, as exists in clouds to produce lightning might produce some really large currents, integrated over a large flux area, hence it intrinsically generates magnetic field by virtue of this electric current between core and mantle (as such).

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#105
In reply to #31

Re: Impacts of Rotation of Moon

08/27/2017 3:45 PM

"Even tho it always faces US, it doesn't always NOT face the sun. It also orbits around Earth, and therefore sometimes it faces both us and the sun. That's when the Full Moon is out. The unobserved face is only directed toward the sun during a NEW Moon, like yesterday for the eclipse."

Correct.

The far side of the moon Would be visible from Earth part of the time if it always faced the sun...

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#37

Re: Impacts of Rotation of Moon

08/23/2017 5:42 AM

A moment of reflection shows you have missed something. The "other side" cannot continuously face the sun but goes through a 28-day cycle of being illuminated or in darkness just as the face looking at us does.. For example, at full moon, our side is fully illuminated and the back side then must be in darkness. In fact, both sides go through a similar cycle of rising sun, heading toward maximum illumination and then back toward darkness and finally practically full darkness (it is still lighted by reflections from our world when a viewer there would experience "full earth", if on the side facing us.

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#39

Re: Impacts of Rotation of Moon

08/23/2017 7:47 AM

"That's no moon. That's a space station".

Seismic tests on the moon, performed by NASA showed some interesting results. The moon "rang like a bell" for over an hour...

Interesting...

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#46
In reply to #39

Re: Impacts of Rotation of Moon

08/23/2017 9:15 AM

I heard about that theory, now explain the mass of the moon, and its orbit.

You can assign any "magic" density material you want, you will never get the orbit right unless the moon is solid. Rocks ring too.

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#75
In reply to #46

Re: Impacts of Rotation of Moon

08/23/2017 3:48 PM

Rocks do ring, and I think your conclusion is sound....but the path taken doesn't seems to be wanting. Perhaps, I am missing something subtle that holds it all together and you will get me up to speed.

I don't think a Moon of a different mass would necessarily have a different orbit with respect to the Earth. The orbit of a satellite around (and with respect to) a body doesn't vary significantly with the satellite's mass.

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#86
In reply to #75

Re: Impacts of Rotation of Moon

08/23/2017 5:12 PM

The subtle thing that you may/not be missing is relativity. It all depends on how accurate/technical you want to get. "Close enough" is good enough for atom bombs and grenades. But, how close is good enough elsewhere? It's all relative.

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#97
In reply to #75

Re: Impacts of Rotation of Moon

08/25/2017 2:31 PM

I can't help myself; as a fan of Relativity and being pleased with my poem, I feel compelled to share this with you. I hope you at least find it amusing:

"An Illinois Boy":
Faith comes by hearing, and hearing by the word of God?
But without relevancy, a parable may sound a bit odd.
Words require a language, so what language do you speak?
I THINK I speak English, But it may come out Greek.
If Hearing comes by the Word, then how does the Word come?
Since I can't hear yet, then I'd like to see some.
I try to be good, and walk by faith and not by sight.
But if I can't see the Word, then I'll never hear the Light!
So if I can't hear your Book, will you use an interpreter please?
I know the majority rules, but I still don't know Chinese.
My only goal, is to fill my soul.
But how do I stop blundering?
So many facts give cataracts.
And I'm left in the dust just wondering.
Stop the flood but fill the vacancy.
All I really need is a little relevancy.
Roads to pave,but not by slave.
Don't miss the connection by blinkin'.
The Dream of Dreams is not what it seems.
So where is the missing Lincoln?
The slaves are free and I want their joy.
So I'll sing the song "Thank God I'm An Illinois Boy"
Oh that poor Helen Keller; no wonder she was a clod.
Why can't faith come by feeling, and feeling by the word of God?
But whether faith comes by sound, sight, or touch,
Let the word come, but not by too much.
I don't want a flood,but there is a vacancy.
All that is needed, is a little relevancy.
Earth to God: I don't want to be guilty of blinkin'.
So would you help me plese, find the missing Lincoln?
If I smell something in the air,and God's way is how it goes,
I'll know I'm hearing God's word in Chinese thru my nose!
Parables were used to open many a door.
Likewise, I'll stand on my metaphor.
My only goal is to fill my soul,
And to lock out the blundering.
If our noses smelled more than roses,
Then we won't be left wondering.
No more flood and no more vacancy.
All we really need is a little relevancy.
Roads to to pave but not by slave.
It's done with a little thinkin'.
The slaves are free, and so are we.
Oh how I love the Land Of Lincoln.
I can live without pretended joy
And sing the song "Thank God I'm An Illinois Boy".
The slaves are free and so are we.
I can live with genuine joy.
Roads to pave, but not by slave.
Thank God I'm an Illinois boy!
Yeah, thank God I'm an Illinois boy!

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#67

Re: Impacts of Rotation of Moon

08/23/2017 1:01 PM

See what you started!!???

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#93

Re: Impacts of Rotation of Moon

08/25/2017 3:24 AM

The moon face which is seen by us from earth - is always and continuously seen and will not change. This is due to the Self Rotation Speed of the Moon in terms angular velocity and the physical orbit of Moon around the earth in terms of linear speed ( as well as the angular rotation of moon with reference to earth centre) is so adjusted naturally so that only one side of moon (what we see) remains unchanged.

Hence the opposite side of moon will be towards the outer space and will be much cooler and when sun rays are falling the temp. will increase.

DHAYANANDHAN.S

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#98
In reply to #93

Re: Impacts of Rotation of Moon

08/25/2017 4:08 PM

Thanks, that answers the first part of the question. I'm still not sure the second part has been covered.

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#99

Re: Impacts of Rotation of Moon

08/25/2017 4:21 PM

The second part: The moon does indeed rotate once per orbit of earth. It does not collide with earth, so thankfully there is no impact.

LOL

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#150

Extension Springs

08/31/2017 4:55 AM

It is my first time I visit here. I found so many entertaining stuff in your blog, especially its discussion.

Extension Springs

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