NASA Space time experiment

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“If Earth were stationary, that would be the end of the story. But Earth is not stationary. Our planet spins, and the spin should twist the dimple, slightly, pulling it around into a 4-dimensional swirl. This is what GP-B went to space in 2004 to check.”

science.nasa.gov/science-news/science-at-nasa/2011/04may_epic/

Hmm…I’m not convinced this “proves” the earth is actually moving, etc. Depending on what is used as the origin, we can say everything else is moving but the object at the origin. Replace whatever you want at the origin and you have your fixed object. I don’t know how science can prove what is actually moving.

I know geocentrism has been discussed heavily before, but what exactly does this experiment prove?
 
It sounds as though the experiment was intended to measure both the space-time distortion resulting from the mass of the earth, but the slight additional (frame-dragging) distortion of the surrounding space-time resulting from the earth’s spin. The results seem to have matched the predictions.
 
Strange article, especially when it describes the effort as heroic. And I have no idea how they can shield a satellite from earth’s magnetic field. Now that would be a breakthrough all by itself.

Peace,
Ed
 
This doesn’t really have anything to do with the Earth moving through space, it has to do with the Earth spinning like a top.

If you want a proof of the earth being stationary then that would be something more like observing that other planets are caught in the gravity well of stars and rotating around them, and that the earth seems to act in the same manner as these planets. Treating it as stationary mathematically is one thing, actually claiming it to be stationary requires an explanation as to why the rules of gravity and stellar motion would be different for it. Science tends to prefer the much simpler solution that the rules are uniform for all massive objects.
 
edwest2 said:
Strange article, especially when it describes the effort as heroic. And I have no idea how they can shield a satellite from earth’s magnetic field. Now that would be a breakthrough all by itself.

Peace,
Ed
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One could shield it from a magnetic field, but not from a gravitational field.
 
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