Rotation of the earth

hi, though it's indescent to reply a ques by another, let me ask , why left is left and right is right . why north is considered as north and south is considered as south . These are simply notations which are postulated . and we have to accept then in agreement . it is said that atoms carry the charge . we get continuous supply of electricity , it means that atoms are travelling from the powerhouse to our own house, but had anybody seen them? i would wish to know if there's any? so dear friend there's no point in streaning ur nerves why earth rotates anticlockwise b 'caz any answer to this que would not be definite.

Hello, Sansktiyi,

"so, dear friend, there's no point in straining your nerves with why earth rotates anticlockwise b 'cause any answer to this question would not be definite."

That's correct - it would be relative to the speed of light and where the observer was standing when they observed the phenomenon and how fast the observer was traveling through space-time.

Ari

(Orpheuse)

WHY

Why is a duck???

ANS...........because one of its feet is both the same!!!!!!!!!!

Don't ask me.

Hi saran369

Here's as good a place as any for answers about planets:

http://www.astro.uu.nl/~strous/AA/en/antwoorden/planeten.html

Have fun!

Protocol.

Hi

this question is partly solved by above answers: primordial rotation of star forming gas and dust clouds that undergo turbulent compression by the plasma winds of hot nearby stars in star-birth regions.

So the part of the cloud that will later be a star and a proto-planetary disc gets some arbitrary (from turbulence) rotation.

Open questions:

1.what changed the rotation of some planets or are these captured objects not from proto-planetary origin or is the proto-planetary disc in itself turbulent?

2. On star forming by gravitational collapse starting at some very low density the (rotational) impulse should be preserved. But as most of the mass is compressed into the central star (may be more than one) the rotation rate should be much higher than seen in our sun and other stars. How is the cloud of particles able to get rid of excess angular momentum (impulse)?

Astrophysics today has no solution to this problem, so may be you have?

RHABE

I have not.

For me it's suitable to think that they (odd rotated planets) had been captured by ours Solar system.

I have not means and qualification to prove it but it makes my soul calm.

Hello again, saran369

When God created this complete Universe, and the local Galaxy, the local system, the Solar System our Earth is located in, it was all carefully designed for a special purpose.

Accordingly, some planets were "wound up" spinning in one direction, some in the other.

Other planets and moons have interfered with each other, all part of the marvellous design.

Science and/or the theories of man cannot give you a correct answer to your question.

You will need to ask the Maker, to discover the reason why.

Kind Regards....

You wrote:

"You will need to ask the Maker, to discover the reason why."

Just tell him not to hurry up...

wangito.

Read again formulated question. If your answer is correct so if would happen the sundial invented firstly in S hemisphere Saran's answer should be the same but only with replaced "clockwise" and "counterclockwise". Are you supposing that this cause correct answer should be; "The answer is that the sundial was invented in the southern hemisphere.

Blankiii's answer is the only meaningful as it does not depend on where sundials were invented for the first time.

I thought I said that already...

According to one theory, arising from an impact that resulted in the creation of our moon.

All of you has it wrong.

In SA at least the earth is rotating clockwise while the sun and the shadow on a sun dial is moving anticlockwise (clock stupid).

Mrs Pless proclaimed the current protocol in the Cradle of mankind Gazette.

In Africa we don't use a clock to time events. an almanac is sufficient.

Did you know Mrs Pless had a mother?

A recent notice at the museum was:-

Mrs Pless and mother

Africa exhibition.

The mass density of the "primordial cloud" increases as the radius decreases causing a greater force on the side closest to the center making rotation opposite of the cloud itself.

chazl

chazl,

Are you suggesting that:

1) there is a sort of "gravitational drag" on the "light side" of a new planet?

2) rotation is due to a tidal force?

It's this part I'm having trouble with, "causing a greater force on the side closest to the center making rotation opposite of the cloud itself."

I don't read too fast so please, type slowly.

-A-

I gave you the GA for a good answer and a very good point(in the picture). It is archaic correct?

pipewelder

The answer is in the question. You are viewing North Pole as the top. If civilization would have developed in the Southern Hemisphere rather than Europe then you would perceive the earths rotation as clockwise and South Pole would be top.

Early European explorers travailing to the Southern Hemisphere where often confused when they perceived the Sun rising from the West.

However if the earth would have had a retrograde orbit then north would be perceived as having a clockwise movement as the Sun would appear to rise in the West. In reality its still moving in a clockwise motion.

Ponder this question. Dose the Earth rotate around the Sun or dose the the Sun rotate around the Earth? Can either be proven right?

Dose the Earth rotate around the Sun or dose the the Sun rotate around the Earth?

Neither - each rotates about it's own axis.

Oops. I guess I fudged up that one. Ok orbits

If that were the case, the Sun would be moving in curly-ques as it ORBITED in/with the rotation of the Milky Way. Then again, does the Milky Way or even the Universe orbit around the Earth? That's an e-ticket ride! I think it's more of an ego thing. I'm getting dizzy just thinking about it.

Er, should that be "both rotate about the Solar System's centre of mass"?

Nope. Rotation is about one's own center.

I'm reminded of an old B.C. cartoon from the turbulent 60's. Two aliens are looking down on the earth:

Alien 1 - did you know that the earth goes through one revolution every 24 hours?

Alien 2 - you mean rotation, don't you?

Alien1, as smoke rises up from the earth - whatever.

If civilization would have developed in the Southern Hemisphere rather than Europe

I believe it came first in the southern, and almost last in Europe. So much for polarity of civilizing influences.

The first civilizations were all in the northern hemisphere. But, yes - civilization came late to poor Europe.

What are you calling a civilization? Ethiopia and upper/lower Egypt? Were not the great migrations out of Africa from the southern part of that continent? Would it not have required genuine social organization and provisioning to accomplish those migrations? Even if great stone monuments which left a record to be discovered were to follow long afterward? It might be more valid to say, only, that the advent of astrology (in conjunction with that of organized agriculture--and slavery) had its roots in the north, in vicinity of tropic of cancer.

In the running context of this thread, "civilization" refers to builders of sundials.

As far as I'm aware, the early peoples who migrated out of Africa (along the northern coast, BTW) came some 10,000's of years ago. And while they certainly were organized and had some form of culture, they were not organized into the kind of social forms we normally associate with civilization - i.e., settlement, architecture, industry and farming.

To answer your question - no, it doesn't take genuine social organization and provisioning to accomplish migrations. It takes legs. Ask the armadillo.

And not to put too fine a point on it, what many consider to be the cradle of humanity - the Great Rift Valley of Kenya, is in fact in the northern hemisphere - by about 1°

Sun does rise in East only in southern hemisphere also. Please ask somebody from that hemisphere.

Thats not what I said.

Facing the Sun in the winter living in the Northern Hemisphere the Sun rises from your right.

In the Southern Hemisphere the Sun would rise from your left.

This would cause confusion to some earlier travelers since they still perceived the world to be flat.

Which one? Your Eastern right or your Western right?

Facing the Sun from any hemisphere, Sun rises in front of you, not on left or right, as you are facing the Sun.

What do you mean? Your back-front or your front-front?

I didn't specify the time of day I was facing the sun. It could have been mid-day I don't remember.

Then what do you remember? Was it the best of times? Was it the worst of times? Were you waiting for Godot? Were you waiting for the Robert E. Lee? What's the sound of one hand clapping? If a rooster lays an egg on the top of a barn, does the egg roll to the right or to the left?

Please Be little soft on BigEdm, Vermin.

I understood what he meant. When you are in north hemisphere (above 23.5 deg N only), the Sun is always on the south, thus, i general when you are facing Sun (that is south), east is on left. Thus it means when in north Hemisphere, facing south (towards general direction of Sun) sunrise point is on left.

Reverse is true in south hemisphere (beyond again 23.5deg S only). Facing Sun (which is always generally in north), sunrise point is towards right.

In his post he could not put it right and then afterwards, probably he himself got confused.

No Need to be soft on me. I'll just have a big helping of crow. Sitting here in my office looking out the window is a sign saying East Pittsburgh and the Sun sets directly over it. S--t, now I'm really confused. Just one of those days. Keep it lite, for tomorrow I'll be on the lake fishing and will try to forget how, ugh bad the crow tasted.

It did last time I looked, but since my temporary retirement I have not been up earlier enough to check it...................perhaps I will consult an oracle.

I never saw so many fancy ways to just say:"i don't know"

pipewelder

! My university teacher told me quoting one of famous philosopher(or scientst) who witnessed having said:"I know that I know nothing!" Shame on me but I've forgotten his name.

I confirm that I really do not know.

Nor do I but I am sure glad it does.

pipewelder

When I uploaded comment #15 at the start of this thread I noticed (to my scare) that I've forgotten to check one as OFF-TOPIC.

I rushed to editor to correct this, but it was too late. I do not like be impolite, so over the day I felt myself some confused.

I confused and puzzled right now as well but by another reason. Where is Topic either Off-topic?!! Who knows?!!

I'm going outdoor.

In a topic such as this one - we're all off.

Enjoy your day!

OMG!!! This has become....sad....I can't Believe the number of posts regarding a question that there is NO answer for.

The vast majority of everything in our solar system rotates/revolves around our sun in the same direction. In turn the vast majority of everything in our galaxy revolves in the same direction around It's center.

Why? In the grand scheme of things I don't think it much matters!

We are in our Infancy as a semi-intelligent race groping for answers to cosmological and quantum physical answers that seem to elude us at every turn. I don't think we know as much about our universe and what makes it all GO as we Think we do. We have barely scratched the surface!

Eventually, if we don't blow ourselves up or destroy ourselves with some other catastrophe born of our own stupidity, we may actually learn what's really happening and the process(s) that started everything in motion and why.

Until then, just about Everything that we spout as fact is pure speculation at best.

Who Cares why east is east and clockwise is clockwise. It just IS! Now let's move on to something that Really matters.

My 4 1/2 cents worth. Sorry, but I can't afford a whole nickel in the present economy.

Jeff

So, on the one hand we're ignorant, and on the other hand we should only be talking about what really matters. How about if I just lay under a tree and contemplate the falling apples - I wonder if anything would ever become of that.

Hi bhankiii

I knew I'd take a little flack for my post. That's ok, I invite it.

The only thing I was trying to say is that we seem to waste alot of time as a race comtemplating things that, at this moment in time, don't really matter too much. I don't think that knowing the reason why our universe spins in the direction it does is going to solve the problems of humanity.

I know we all need breaks from our regular routines to keep from winding up in the loony bin.

I'm not saying that study and thought about our universe is a worthless endeavor, far from it, I believe we should be examining ways to better the whole of mankind.

Wars, famines, disease, the possible irreversable polutional harm to our planet, greed, etc.. We need to attack our Current frontiers before we can concentrate fully of our Final frontier. If we are going to survive, we must face our shortcomings and pull together as a united planet of humans to solve them.

You may say I'm a dreamer...but I'm not the only one.... Good song!

we seem to waste alot of time as a race comtemplating things that, at this moment in time, don't really matter too much

...says the man who plays golf.

Our Galaxy revolves slowly, like a giant pinwheel, in space, where there is no up, down, east, west etc.

Our Solar system is towards the outer edge of the Galaxy we live in, and rises and falls on a regular basis through the Galactic plane.

The long term motion of our Solar System, along with Galactic rotation, is similar to a horse on a fairground merry-go-round, where the horse rises and falls, as the merry-go-round rotates.

Truly it is all of marvellous design.

For those interested in more, you can freely obtain Celestia Space Software.

No adware, bugs or malware.

<"Welcome to Celestia : http://www.shatters.net/celestia/ ... The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X.
Unlike most planetarium software, Celestia doesn't confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy. All movement in Celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. A 'point-and-goto' interface makes it simple to navigate through the universe to the object you want to visit.

Celestia is expandable. Celestia comes with a large catalog of stars, galaxies, planets, moons, asteroids, comets, and spacecraft. If that's not enough, you can download dozens of easy to install add-ons with more objects.">

Enjoy simulated space travel, without the horrendous cost of actual travelling there.

You can alter your perspective from anywhere, and even simulate travel forwards and backwards in time, at various speeds.

Kind Regards....

Do I have to wear a funny suit?

Hello bhankiii

No, but if you want, that's just fine.

Meanwhile the usual Hearts, Diamonds, Clubs and Spades should be quite acceptable.

Kind Regards....

Oh!.......my head is spinning............clockwise........anti-clockwise..........who cares.

Stop the world..........I want to get off.

I'm just glad we have digital watches and clocks.

Anyhow there is no such thing as gravity...............the earth sucks.

Enough..
The Cat has woken.

There are three possibilities.
1. No spin.
2. Spin on an axis in one arbitarilly named direction.
3. Spin on an axis in the direction opposite to #2
4. Spin on an axis that nutates wildly itself which would really screw things up.
whoops I said 3.

It's just purr chance which it happens to be and irrelevant how the direction is named.

The Cat has spoke ..please insert anothe £1 coin.

Del

Instead of spinning, it could bounce!

You never did get the hang of relativity.

Let me put this to you as gently as possible: Vermin, Earth IS bouncing. You're the one who's stationary.

And so is your avatar (and that other thingie).

Oh! Well, that's different! Never mind.

I may have missed something in this long string, but the correct answer was pointed out in an earlier post and IS because the Earth is turning to the East which IS counter-clockwise when viewed from above the North pole. My question was; why do ALL the planets in our solar system rotate in the same direction and I found this?

check out this link: http://uefap.com/reading/exercise/skim/origin.htm

Where is the picture that downloads incessantly (but never seems to show itself)when this forum page is opened?