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Rockazella
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I know gravity is said to warp spacetime, but does it also warp the matter in spactime? If it does, would this make the shape of an object completely dependent on referance frame?
Gravity waves do warp matter. This was the idea behind the first gravity wave detectors in the 1950s. They never actually did repeatably detect gravity waves. They were based on a very large long bar of metal. Passing gravity waves would distort it ever so slightly, and extremely sensitive detectors would sense that.
Originally posted by Rockazella
OK, so does it warp in sense of chroot's example (power lines) which can classically be thought of as a force being applied to the line which bends it, OR does it warp matter more like you see in illustrations of warped space-time?
"Warping" or "curving" refers to distance relations and curvature. The curvature of a surface can be altered by applying a force. That force can be gravity.Originally posted by Rockazella
I know gravity is said to warp spacetime, but does it also warp the matter in spactime? If it does, would this make the shape of an object completely dependent on referance frame?
"Warping" or "curving" refers to distance relations and curvature. The curvature of a surface can be altered by applying a force. That force can be gravity.Originally posted by Rockazella
I know gravity is said to warp spacetime, but does it also warp the matter in spactime? If it does, would this make the shape of an object completely dependent on referance frame?
Originally posted by Rockazella
OK, so does it warp in sense of chroot's example (power lines) which can classically be thought of as a force being applied to the line which bends it, OR does it warp matter more like you see in illustrations of warped space-time?
Gravity waves are different from straight gravity, just as radio waves are different from electric charge.
In the case of the gravity wave detector bar, it would become shorter and thicker as the crest of a wave passed, and longer and thinner as the trough passed, and it would cycle through these changes as the train of waves went through it.
Originally posted by selfAdjoint
Gravity waves do warp matter. This was the idea behind the first gravity wave detectors in the 1950s. They never actually did repeatably detect gravity waves. They were based on a very large long bar of metal. Passing gravity waves would distort it ever so slightly, and extremely sensitive detectors would sense that.
A newer experiment is currently underway called the Laser Iterferometry Gravity-wave Observatory or LIGO. If I have understood your question correctly, you are asking if there is a qualitative difference between the way a bar bends when subjected to gravity waves and the way it would bend if subjected to, for example, a strong wind, right? If GR is correct, and I think that is extremely likely, then the answer is yes. As has been stated earlier, matter occupies space. And if gravity waves do exist, they should alter the position of matter not by moving the matter through space, but because the space in which the matter sits is moving
Gravity warps matter by pulling it towards the center of mass. This can cause objects to become more spherical in shape as the force of gravity acts equally on all sides.
Yes, over a long period of time, gravity can cause objects to change shape. For example, planets and stars are constantly changing shape due to the gravitational pull of other objects in their orbit.
No, all objects with mass are subject to the effects of gravity warping matter. Even objects that may appear to be stationary or unaffected by gravity, such as a book resting on a table, are still experiencing the force of gravity.
The strength of gravity directly impacts the degree to which an object's shape is warped. The stronger the force of gravity, the more profound the effect will be on the object's shape.
Yes, in extreme cases, gravity warping matter can have negative effects on the structural integrity of objects. For example, the intense gravity of a black hole can cause objects to be torn apart and destroyed.