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How fast is the earth moving?
Scientific American ^ | 26 Oct, 1998 | Rhett Herman

Posted on 01/09/2016 6:12:50 PM PST by MtnClimber

Consider the movement of the earth's surface with respect to the planet's center. The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second-or roughly 1,000 miles per hour. As schoolchildren, we learn that the earth is moving about our sun in a very nearly circular orbit. It covers this route at a speed of nearly 30 kilometers per second, or 67,000 miles per hour. In addition, our solar system--Earth and all-whirls around the center of our galaxy at some 220 kilometers per second, or 490,000 miles per hour. As we consider increasingly large size scales, the speeds involved become absolutely huge!

(Excerpt) Read more at scientificamerican.com ...


TOPICS: Science
KEYWORDS: aristarchus; aristarchusofsamos; catastrophism; cbr; earth; heliocentric; heliocentricity; heliocentrictheory; leo; xplanets
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To: MtnClimber

Almost as fast as liberal lies


21 posted on 01/09/2016 6:57:10 PM PST by dynachrome (We have multiplied our possessions, but reduced our values.)
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To: MtnClimber

The very reason I sleep with my feet facing eastward. I do not want to go that fast head first, it makes me dizzy.


22 posted on 01/09/2016 7:04:21 PM PST by Graybeard58 (Bill and Hillary Clinton are the penicillin-resistant syphilis of our political system.)
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To: SampleMan

I think that was a point yhe author was trying to make; that velocity is always relative to something else. The theory that Cosmic Background Radiation (CBR) can show a center of the universe that gives a reference point was made and used for some of the velocities cited. But, CBR is just a theory.


23 posted on 01/09/2016 7:05:38 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: yarddog

I wonder if there is a place where all the universe, all the galaxies etc. are moving from or towards?

******************************************************

If you believe in the big whang bang theory, everything is moving away from the original explosion.


24 posted on 01/09/2016 7:06:14 PM PST by Graybeard58 (Bill and Hillary Clinton are the penicillin-resistant syphilis of our political system.)
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To: winodog

Since Leo is part of the Zodiac, i.e. it lies along the ecliptic circle from our POV, we must conclude that we are travelling “sideways”, as you suggest. And since the sun is in Leo in August, a month shy of the autumnal equinox, this is very close to the equatorial plane of the earth. So the answer is very definitely, “sideways”.


25 posted on 01/09/2016 7:07:03 PM PST by dr_lew
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To: who_would_fardels_bear

This might mean that worm holes are the only “practical” method of space-time travel.

********************************************************

A good flux capacitor helps too.


26 posted on 01/09/2016 7:08:45 PM PST by Graybeard58 (Bill and Hillary Clinton are the penicillin-resistant syphilis of our political system.)
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To: winodog

Is the north end of the earth the front of the spaceship? Or are we traveling “sideways”?

**********************************************************

Yes!


27 posted on 01/09/2016 7:10:01 PM PST by Graybeard58 (Bill and Hillary Clinton are the penicillin-resistant syphilis of our political system.)
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To: Maceman

How fast is the earth moving?
The answer is here in:

THE GALAXY SONG!

I just knew that was coming!


28 posted on 01/09/2016 7:11:26 PM PST by CrazyIvan (Hey Pope Francis- The Gospels are not Matthew, Marx, Luke and John.)
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To: MtnClimber
But, CBR is just a theory.

Au contraire, it is a very simply observed and reported fact, famously seen by experimenters who were not even looking for it, even though there were those who WERE looking for it, just a few miles away, albeit with inferior equipment. Such is fate.

29 posted on 01/09/2016 7:13:29 PM PST by dr_lew
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To: SampleMan
All movement is relative, as there is no universal zero spot.

Careful, somebody's going to call you a geocentrist, lol. Never mind what Einstein had to say upon the matter.

30 posted on 01/09/2016 7:17:49 PM PST by RegulatorCountry
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To: dr_lew

Oh, I know CBR exists and can be measured along with Doppler shift measurements in all directions. Scientists can have a theory about what caused CBR, but they will have a hard time absolutely proving it was a big bang since they cannot observe it happening.


31 posted on 01/09/2016 7:19:43 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

But you are all roughly stationary in relation to me. Just saying.


32 posted on 01/09/2016 7:20:32 PM PST by NYFriend
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To: Graybeard58

http://www.telegraph.co.uk/news/science/space/nightsky/11492654/night-sky-in-april-2015-great-attractor.html
“Beyond all this is an unseen object called the Great Attractor which is pulling the Milky Way and all else towards it at the terrific speed of 14 million mph. What is this thing, how far away is it, and what will happen when we reach it? No one knows.”
We may not be moving away from the Big Bang.


33 posted on 01/09/2016 7:25:00 PM PST by freefdny
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To: dr_lew

I have not seen any recent papers on Doppler shift looking at galaxies in all directions. I thought that everything was moving apart so that could point to a central point. But it seems local galaxies are moving toward the Great Attractor region so all galaxies are not moving apart.


34 posted on 01/09/2016 7:25:30 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: NYFriend

But, I will be at your front door if you win Powerball tonight :)


35 posted on 01/09/2016 7:28:14 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: dr_lew

It takes approximately 225 Million years for our solar system to make one revolution around the Milky Way Galaxy.


36 posted on 01/09/2016 7:42:34 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

Well to me, “I know CBR exists” and “CBR is just a theory” stand in contradiction. So as Strunk & White admonished, “Try to keep things straight.”


37 posted on 01/09/2016 7:42:59 PM PST by dr_lew
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To: MtnClimber

https://www.youtube.com/watch?v=LuANURnBzWQ


38 posted on 01/09/2016 7:46:00 PM PST by wally_bert (I didn't get where I am today by selling ice cream tasting of bookends, pumice stone & West Germany)
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To: dr_lew

I should have said that the cause of CBR is a theory.


39 posted on 01/09/2016 7:46:07 PM PST by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber
It takes approximately 225 Million years for our solar system to make one revolution around the Milky Way Galaxy.

But this is extrapolation from appearances, is it not? What knowledge do we have that such a revolution has ever actually occurred, or will actually occur?

And such demurrals are on a par with the denial of the primordial significance of the observed CBR, so I don't see where you're coming from.

Are you saying that our galaxy must be at least several hundred million years old, so as to have accomplished a revolution or two, as it seems to be in the process of doing? But that the universe itself was only created who knows when, the CBR notwithstanding?

40 posted on 01/09/2016 7:55:34 PM PST by dr_lew
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