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Re: Gravity Waves

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Posted by Bruce Jensen/">Bruce Jensen on June 5, 1997 11:51:23 UTC

: Does anybody have information on the latest research on Gravity Wave detection?

Good question - I haven't seen much useful information anywhere. One of the problems with gravity waves is that either the waves need to be of a reasonable wavelength and frequency, or you need to build amazing equipment to detect them. Usually, theoretical waves big and strong enough to detect are huge, and our equipment floats along with them; or they are smaller but very weak, and our equipment can't see 'em! I was on another forum the other day, and read a series of postings discussing whether or not one could detect a Doppler shift in gravity waves...the general concensus seemed that you should be able to. I almost threw my two cents' worth in there, but it seemed a futile thing to do because they were trying to discuss a phenomenon that may not even exist, and at any rate remain undetectable for years to come. What would a gravity-wave Doppler shift look like or "feel" like? With light, you see a tiny shift to red or blue. With sounds, you detect an increase or decrease in pitch; I cannot imagine what the shift of a series of gravity waves would manifest itself as...would it feel like an earthquake, a slow rolling back and forth as the gravitational field experiences field strength fluctuations? Yow...Bruce

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