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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
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To: MtnClimber
I guess the answer always is in relation to what.
I wonder if there is a place where all the universe, all the galaxies etc. are moving from or towards?
2
posted on
01/09/2016 6:15:16 PM PST
by
yarddog
(Romans 8:38-39, For I am persuaded.)
To: MtnClimber
I’m a little bit dizzy after reading that article.
To: MtnClimber
Our Milky Way galaxy is moving toward a massive feature called The Great Attractor at a speed of about 1.8 million miles per hour. Our galaxy is also on course to collide with the Andromeda Galaxy in about 4 billion years.
Hope we don't get a speeding ticket.
4
posted on
01/09/2016 6:16:46 PM PST
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: MtnClimber
"...the speeds involved become absolutely huge!"
5
posted on
01/09/2016 6:17:32 PM PST
by
Jack Hydrazine
(Pubbies = national collectivists; Dems = international collectivists; We need a second party!)
To: yarddog
I think all galaxies in our region are moving toward the massive feature called The Great Attractor.
6
posted on
01/09/2016 6:20:46 PM PST
by
MtnClimber
(For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
To: SamAdams76
How does a plane flying east keep up?
7
posted on
01/09/2016 6:21:21 PM PST
by
taterjay
To: MtnClimber
8
posted on
01/09/2016 6:22:12 PM PST
by
yarddog
(Romans 8:38-39, For I am persuaded.)
To: MtnClimber
All movement is relative, as there is no universal zero spot.
9
posted on
01/09/2016 6:22:46 PM PST
by
SampleMan
(Feral Humans are the refuse of socialism.)
To: MtnClimber
This is one of the reasons why time travel is so problematic.
If a person were able to go back in time just a couple of seconds, the earth would be countless miles away from the point at which the person went back in time.
In order to go back in time and remain on earth you would also have to move a great distance through space as well.
This might mean that worm holes are the only "practical" method of space-time travel.
To: MtnClimber
“Scientific American.” Scientific? American? Take a good long look at both and draw your conclusions.
11
posted on
01/09/2016 6:23:26 PM PST
by
Fungi
To: MtnClimber
12
posted on
01/09/2016 6:25:01 PM PST
by
Maceman
To: MtnClimber
We can also specify the direction relative to the CBR. It is more fun, though, to look up into the night sky and find the constellation known as Leo (the Lion). The earth is moving toward Leo at the dizzying speed of 390 kilometers per second. There is a non sequitur here. "Leo" represents a direction in the sky, in which we are moving "relative to the CBR". "Leo" does not represent an object wrt which we have a relative velocity.
Not knowing any better, I would have to suppose that our velocity wrt the brighter stars of the constellation Leo, are significantly less than the cited 390 kps.
I await instruction to the contrary.
13
posted on
01/09/2016 6:28:39 PM PST
by
dr_lew
To: dr_lew
Is the north end of the earth the front of the spaceship? Or are we traveling “sideways”?
14
posted on
01/09/2016 6:34:02 PM PST
by
winodog
To: taterjay
I have wondered about that too. Also why do planes flying West not go at super speed or is it go backwards?
I guess the atmosphere must rotate along with the surface. Obviously the air right close to the surface does not constantly blow at several hundred miles per hour.
15
posted on
01/09/2016 6:37:07 PM PST
by
yarddog
(Romans 8:38-39, For I am persuaded.)
To: Maceman
THAT’S the one I was just looking for!
16
posted on
01/09/2016 6:37:38 PM PST
by
digger48
To: yarddog
the atmosphere must rotate along with the surface.
bingo
17
posted on
01/09/2016 6:39:15 PM PST
by
central_va
(I won't be reconstructed and I do not give a damn.)
To: MtnClimber
If you are one the side of the earth that is moving oposite to the direction the whole earth is moving, that would slow you down.
I suppose if you are one the part of the circle where you are moving opposite to the way the galaxy is moving and you are moving opposite to the way the sun is moving and opposite to the way the earth is spinning, you are going so slow you are actually going backwards.
18
posted on
01/09/2016 6:40:38 PM PST
by
stevem
To: MtnClimber
Relative to what? The article keeps shifting its reference point.
19
posted on
01/09/2016 6:41:39 PM PST
by
FourPeas
(Chocolate, sugar and lots of caffeine. Hard to beat that.)
To: dr_lew
I think you are right. The author says that our total velocity is in that direction wrt CBR. What he did not say was that Leo is rotating around the center of the Milky Way with us so our composite velocity is slowly changing angle as we spin around the center of the galaxy. It is just for our lifetimes velocity is in the direction of Leo.
20
posted on
01/09/2016 6:47:29 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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