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          A team of international scientists and university researchers assembled by the National Aeronautics and Space Administration (NASA) has found the first direct evidence that the Earth is dragging space and time around itself as it rotates, NASA said. 
It said that the researchers believe they have measured the effect that was first predicted in 1918 by using Einstein's theory of general relativity by "precisely observing shifts in the orbits of two Earth-orbiting laser-ranging satellites."

The finding, said NASA, constitutes the "first accurate measurement of a bizarre effect that predicts a rotating mass will drag space around it."
The so-called "frame-dragging effect," said Erricos Pavlis of the Joint Center for Earth System Technology in Greenbelt, Maryland, one of the team leaders, "is like what happens if a bowling ball spins in a thick fluid such as molasses.

"As the ball spins, it pulls the molasses around itself," he said. "Anything stuck in the molasses will also move around the ball. Similarly, as the Earth rotates, it pulls space-time in its vicinity around itself. This will shift the orbits of satellites near Earth."


"Not everything that can be counted counts, and not everything that counts can be counted." -- Albert Einstein Posted on Monday, October 25, 2004 10:51 PM | Back to top

Comments on this post: NASA evidence supports Einstein's theory of relativity

# re: NASA evidence supports Einstein's theory of relativity
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the description above explains only about the rotating objects. but according to Einstein's theory for the a body which is stationary and is very heavy, the same effect of attraction can be observed.
Left by sayed nazar qasim on Nov 01, 2004 7:50 PM

# re: NASA evidence supports Einstein's theory of relativity
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this theory extends to relatively static particles too :) just one of many conclusions that can be derived.
Left by umesh on Nov 04, 2004 12:29 PM

# NASA evidence supports Einstein's theory of relativity
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It does seem that their idea can only be applied when a large mass rotates, but we can see from Lead, blocking all kinds of energy, except Gravity, that it is not a direct pull, thus evidence AGAINST Newton's idea of gravity, the only real counter arguement against Einstein's.
Left by Ronan Knittel on May 19, 2006 12:22 AM

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