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LIGO Gravitational Wave Observatory

The Laser Interferometer Gravitational Wave Observatory is spearheading the completely new field of gravitational wave astronomy and opening a whole new window on the universe. LIGO's exquisitely s...  
 
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MrRodneykawecki (4 weeks ago) Show Hide
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Gravity and or ghravity waves havebnyet been detected. In space matter is warping dark matter. On earth..gravity is the energy action between two objects...one being the planet. SUPERTELLIC UNIVERSE...
sean6006 (1 month ago) Show Hide
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Actually, I think that gravity waves (or the 'graviton') travel at at the speed of light, so to say that if the sun were to suddenly vanish it would take ~8 min for the earth to go off into space on a tangent. Also, can't we prove that gravity is a wave by observing gravitational interference? or by cancelling gravitational waves? Or shouldn't we be able to observe a doppler effect from distant galaxies? There are so many things to consider: What would be the frequency? My head is exploding...
ehswan (2 months ago) Show Hide
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What is most essential at this time is to determine the velocity of the propagation of gravity. Finite or infinite? That is the question. If it is finite we are doomed to live in our little room, if infinite then we can visit our neighbors, and they can visit us.
ehswan (2 months ago) Show Hide
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A little thought experiment here. Suppose that gravity propagates at INFINITE velocity! How could an infinitesimal period of time be measured? Answer: no way! You all, by your absurd presumption, in my opinion, are DOOMED to FAIL Ha Ha .
etiennealive (2 months ago) Show Hide
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In the Netherlands they are constructing an underground placed coper bol with a large diameter to detect gravitational waves. What do you think of this concept.? (they expect the bol to vibrate).
jingling30 (2 months ago) Show Hide
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I think they should be putting more efforts in colliders to confirm supersymmetry to further develop string theory.
ewmegoolies (2 months ago) Show Hide
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So, now everybody that has an opinion and doesn't publish a paper is a crackpot? Is that code word for squander a bunch of your own time before you take away our funding? What have you published to support this "proof of principle" as valid or validated?
wganderson (2 months ago) Show Hide
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What? Of course we can tell the direction that a gravitational wave came from, provided we have at least three non-colocated interferometers to work with (currently there are five operating). And there is a lot that we will be able to say about the universe from gravitational wave observations - it will inform population models, reveal the structure of spacetime around black holes, and give important information about the composition of neutron stars, among other things.
cobrachoppergirl (2 months ago) Show Hide
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So if you know the structure of spacetime around a black hole and something more about netron stars, what good will that do you? Like the guy said, you can't feed people with that. If you know a star far away is purple rather than green, yes you know something more about the universe, but was it worth spending millions to find out? And yes, the military is an even huger waste of money, which besides killing people, often drives science to find new and more devilish ways of killing people.
wganderson (2 months ago) Show Hide
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So your position is that pure science (as opposed to applied science) is a waste of money? That is a tempting argument ,but it is short-sighted. Pure research gives applied research tools to work with, and it does so in unexpected ways. Who knew over 100 years ago when Planck postulated that light comes in quanta that it would lead to microprocessors, lasers, etc that have saved millions of lives? Also, are you opposed to spending on the arts? After all, you can't feed people music or paintings.

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