Gravitational Waves
22 Feb 2008 6:29:56 UTC
Topic 193527
(moderation:
From reading www.einetein-online.info/en/elementary/gravWav/index.html I understand that gravitational waves will have been detected when we observe transverse fluctuations occurring in the shape of atoms. It seems these will be caused by distant objects such as pulsars and black holes. Why don't the gravitons we receive from the moon give rise to these same fluctuations?
GB
Gravitational Waves
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The following quote is from the section called “Gravitational wave astronomy�:
So in the effort to detect gravitational waves, it's not about detecting gravitons or the fluctuation in size of an individual atom – it's about trying to detect a very small change in a huge distance, for example with the distance of 93 million miles (from here to the sun) changing by an amount that's no bigger than the size of a hydrogen atom.
Hence, the tools being used to detect such a small warp in space-time metric are interferometers (like those providing the data that we're all crunching in Einstein@Home), and resonant bar detectors (where the small warp would cause a corresponding change in the resonance of the solid bar)...
What we are looking for is a
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What we are looking for is a small needle in a big haystack.
Tullio
RE: What we are looking for
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It is such a very very small needle that I am constantly amazed that we have the technology to [potentially] find it! :)
Yes, but I see a danger in
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Yes, but I see a danger in physics becoming too dependent on technology. LHC is awesome. We need some new ideas.
Tullio
RE: RE: From reading
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Hi Chipper, long time no say hi........
Those new idea's that Tullio is talking about, can they be developed on earth or do we have to take it into space?
What are the differences if the LHC was in orbit around the earth or moon?
thanks
Mr. Rookie
Ernie S.
The Columbus laboratory just
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The Columbus laboratory just installed by a Shuttle mission on the International Space Station is too small to host a LHC monster, but can give room to 12 experimental apparatuses. My question is: who will ferry the scientists up and down once the Shuttles are retired from flight in 2010?
It has already cost us Europeans 800 million euros plus the cost of the Shuttle mission, 500 million euros. Is it a white elephant?
Tullio
RE: The Columbus laboratory
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Tullio,
thanks for the response,
What do you know about the 12 experimental apparatuses?
Im sure NASA has something up thier sleeves before Burt Rutan (of Dinuba CA.)
over takes them.:-)
Ernie
Team Art Bell
I would suggest this article
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I would suggest this article on Columbus
Columbus
Tullio
RE: My question is: who
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As incredible as it may sound, NASA will not have a capability of its own for manned space-flight at least from 2010 to 2014. It will have to depend on Russian launch vehicles or any private companies that might offer manned space-flight until then. Given that it takes some time to develop, test, and certify a human-rated crew transportation system, there is no way around this other than reversing the decision to retire the Space Shuttle fleet in 2010, which seems unlikely.
CU
Bikeman
RE: RE: My question is:
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Europe has built a heavy launcher, the Ariane V. If ESA wants to maintain its role in space science it should consider building and testing a crew module, perhaps a modernized Soyuz craft with Russia's help. An automated cargo craft is already on the launching pad, the Automated Transfer Vehicle.
Tullio