Gravitational Waves: Experiments to Produce and Observe

JF131
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My understanding is that there is currently a large amount of money being spent on different experiments to detect gravitational waves. From all the articles I've read , they all describe these waves getting weaker as you travel further from the source. So my question is does anybody know of any experiments to actually produce and observe G. waves rather than trying to observe a minute amount of space-time distortion from a source that's light years away??
 
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Laboratory produced gravitational waves would be impossibly weak in amplitude for modern day detectors to go up against. Astrophysical events on the other hand can be extremely violent and produce gravitational waves with amplitudes that are at least reasonable with regards to future prospects; see section 9.3 of Schutz "A First Course in General Relativity".
 
Thread 'Can this experiment break Lorentz symmetry?'

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Does the speed of light change in a gravitational field depending on whether the direction of travel is parallel to the field, or perpendicular to the field? And is it the same in both directions at each orientation? This question could be answered experimentally to some degree of accuracy. Experiment design: Place two identical clocks A and B on the circumference of a wheel at opposite ends of the diameter of length L. The wheel is positioned upright, i.e., perpendicular to the ground...
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Thread 'How can a black hole absorb matter?'

According to the General Theory of Relativity, time does not pass on a black hole, which means that processes they don't work either. As the object becomes heavier, the speed of matter falling on it for an observer on Earth will first increase, and then slow down, due to the effect of time dilation. And then it will stop altogether. As a result, we will not get a black hole, since the critical mass will not be reached. Although the object will continue to attract matter, it will not be a...
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