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Title: Earth Is Not Orbiting The Sun
Source: [None]
URL Source: [None]
Published: Feb 21, 2011
Author: netlethe
Post Date: 2011-08-17 04:54:27 by wudidiz
Ping List: *Out There*     Subscribe to *Out There*
Keywords: None
Views: 337
Comments: 4

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What a wild and wonderful world this is Subscribe to *Out There*

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#3. To: wudidiz (#0)

that was one interesting theory... At first I was very cynical... then after seeing the explanation I am now thinking, wondering...what is the possibility of this theory being the more correct world view...

Neat stuff wudidiz

titorite  posted on  2011-08-17   16:42:33 ET  Reply   Untrace   Trace   Private Reply  

http://calgary.rasc.ca/howfast.htm

7. So what's the total?

• To determine the total effect of all these different motions, we need to measure our speed versus some "stationary" object similar to how a car's speed is measured relative to a "stationary" road.
• However, every star, galaxy, even distant pulsars and quasars have some kind of motion relative to the Earth
• For a long time scientists thought it was not possible to directly measure the direction and speed of Earth's motion
• Then scientists discovered the Cosmic Microwave Background (CMB) radiation - electromagnetic radiation that originated from the Big Bang
• At first, this radiation seemed to arrive at the Earth from all directions at the edge of the observable universe with a constant value
• Recently, better instruments (on satellites) have been able to measure not only slight differences in this radiation from place to place, but also the "Doppler shift" which is caused by the Earth moving towards one part of it and away from the part "behind" us
• The "Doppler shift" causes some of it to appear "redder" (red-shifted behind us) and some of it to appear "bluer" (blue-shifted in front of us)
• This can be seen in the all-sky image below:
• 
  

• Finally, we could measure our speed relative to something that was so far away it could give a reasonable answer
• According to the Astronomy Picture of the Day at http://antwrp.gsfc.nasa.gov/apod/ap050508.html "The map indicates that the Local Group moves at about 600 kilometers per second relative to this primordial radiation in the direction of approximately 10h Right Ascension and -20° Declination" (a point in the constellation Hydra between Sextans and Antlia).
• 600 km per second works out to 2,160,000 km/hr (1,342,000 mi/hr)!
• Yes - over 2 million km/hr! (but this is still only about 0.2% of the speed of light)
• And you thought you were sitting still?!

wudidiz  posted on  2011-08-17   18:13:50 ET  (1 image) Reply   Untrace   Trace   Private Reply  

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