Comments on: "Listening" for Gravitational Waves to Track Down Black Holes http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/ Space and astronomy news Sun, 8 Nov 2009 10:14:11 -0600 http://wordpress.org/?v=2.8.5 hourly 1 By: Burzycki.org - Tech and Interesting Facts http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-18627 Burzycki.org - Tech and Interesting Facts Sun, 20 Apr 2008 17:40:45 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-18627 [...] of two black holes colliding may be huge, the energy produced by such a collision could even be detected by observatories here on Earth. Ripples in space-time will wash over the Universe as gravitational waves and are predicted to be [...]

[...] of two black holes colliding may be huge, the energy produced by such a collision could even be detected by observatories here on Earth. Ripples in space-time will wash over the Universe as gravitational waves and are predicted to be [...]

]]> By: Kootstar http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12548 Kootstar Fri, 15 Feb 2008 20:22:42 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12548 We already have men in space and the identification of these waves might just have an effect on the planning of future space programs. Also, things we learn about out in the farther universe can have an effect on the knowledge of our own planet and its stability in this wild universe. Many things have come from theory to proven reality and in doing so have affected the further planning of projects and studies and advancements. For one, think of the germs and viruses. Once microscopes and medical sciences proved them, medicine took some gigantic leaps into treatment of their effects. Let us not be too hasty to naysay this study. Who are we to say it is "a bunch of bunk"! We already have men in space and the identification of these waves might just have an effect on the planning of future space programs. Also, things we learn about out in the farther universe can have an effect on the knowledge of our own planet and its stability in this wild universe. Many things have come from theory to proven reality and in doing so have affected the further planning of projects and studies and advancements. For one, think of the germs and viruses. Once microscopes and medical sciences proved them, medicine took some gigantic leaps into treatment of their effects. Let us not be too hasty to naysay this study. Who are we to say it is "a bunch of bunk"!

]]> By: Chagin http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12266 Chagin Thu, 14 Feb 2008 01:28:14 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12266 ) )

]]> By: Astrofiend http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12133 Astrofiend Wed, 13 Feb 2008 03:58:20 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12133 Tony Trenton Says: February 12th, 2008 at 10:44 am 'Gravity waves have wave lengths in tens of light years...' Umm, Gravity waves have wavelengths that correspond to the period of oscillation or the associated timescale of the movement of massive objects. Therefore, rapidly orbiting black holes or neutron stars will have short period oscillations and correspondingly short wavelengths. Maybe that is what you meant when you said 'The only places we will find shorter wavelengths are when we are approaching black holes'. Whatever the case is, these are the objects that they are looking for with LIGO, due to both the relatively short length of the arms of the instrument and the time period over which the data has been taken. The main difficultly in detecting gravitational waves lies not in the fact that they are long period waves, but because gravity is (apparently) an intrinsically weak force, so the amplitude of any oscillations in the LIGO detector will be extremely small - for a typical event they are predicting that the 4 Km LIGO arms will change in length about 0.1% the diameter of a proton. And that's if they even exist at all! We can be reasonably confident that they do, seeing as a) relativity has been accurate in all of it's tested predictions, and b) it is believed that gravitational waves have been indirectly observed (Hulse, Taylor - '93 Nobel Prize for Physics). However, despite this suggestive evidence, they have still never been directly observed. Here's hoping! Tony Trenton Says:
February 12th, 2008 at 10:44 am

'Gravity waves have wave lengths in tens of light years…'

Umm, Gravity waves have wavelengths that correspond to the period of oscillation or the associated timescale of the movement of massive objects. Therefore, rapidly orbiting black holes or neutron stars will have short period oscillations and correspondingly short wavelengths. Maybe that is what you meant when you said 'The only places we will find shorter wavelengths are when we are approaching black holes'. Whatever the case is, these are the objects that they are looking for with LIGO, due to both the relatively short length of the arms of the instrument and the time period over which the data has been taken.

The main difficultly in detecting gravitational waves lies not in the fact that they are long period waves, but because gravity is (apparently) an intrinsically weak force, so the amplitude of any oscillations in the LIGO detector will be extremely small – for a typical event they are predicting that the 4 Km LIGO arms will change in length about 0.1% the diameter of a proton. And that's if they even exist at all! We can be reasonably confident that they do, seeing as a) relativity has been accurate in all of it's tested predictions, and b) it is believed that gravitational waves have been indirectly observed (Hulse, Taylor – '93 Nobel Prize for Physics). However, despite this suggestive evidence, they have still never been directly observed. Here's hoping!

]]> By: Chuck Lam http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12115 Chuck Lam Wed, 13 Feb 2008 00:26:47 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12115 Hmm . . . maybe gravity waves don't exist. It could be Einstein is wrong. Misinterpreting mathmatics is a fairly easy thing.. I'm not saying the math is incorrect that gravity waves are based on. But, the more complex an algorithm, the greater the chance for a misleading result regardless of computer fire-power. Assuming the math is correct, is it possible the universe is awash in a sea of gravity waves just outside of our perception of (4) dimensions? Keep in mind, while we can work very accurately with gravity math, gravity is still a mystery. Hmm . . . maybe gravity waves don't exist. It could be Einstein is wrong. Misinterpreting mathmatics is a fairly easy thing.. I'm not saying the math is incorrect that gravity waves are based on. But, the more complex an algorithm, the greater the chance for a misleading result regardless of computer fire-power. Assuming the math is correct, is it possible the universe is awash in a sea of gravity waves just outside of our perception of (4) dimensions? Keep in mind, while we can work very accurately with gravity math, gravity is still a mystery.

]]> By: Dwight http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12111 Dwight Tue, 12 Feb 2008 23:30:32 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12111 Boy that's a lot of "factual" statements about "gravity waves" which are something that have never been shown to exist. Here we go again -- just speculation, no real physics in here! Boy that's a lot of "factual" statements about "gravity waves" which are something that have never been shown to exist. Here we go again — just speculation, no real physics in here!

]]> By: danoil http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12103 danoil Tue, 12 Feb 2008 21:56:39 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12103 klar0 has a right to be on here as much as we have a right to criticize. I used to have a greed for knowledge. Now that I'm getting older, I have a greed just to have enough brain cells left to keep from lapsing into a conservative. klar0 has a right to be on here as much as we have a right to criticize.

I used to have a greed for knowledge. Now that I'm getting older, I have a greed just to have enough brain cells left to keep from lapsing into a conservative.

]]> By: Peter K http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12102 Peter K Tue, 12 Feb 2008 20:25:10 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12102 Klaro, not that your comment rates an answer but wouldn't it be great if we ALL had such GREED for KNOWLEDGE!! Is there some problem with that? We should all resign our foolish selves to simple stupidity? Thanks, I'll hang with the enquiring minds. Go Science!! Klaro, not that your comment rates an answer but wouldn't it be great if we ALL had such GREED for KNOWLEDGE!! Is there some problem with that? We should all resign our foolish selves to simple stupidity? Thanks, I'll hang with the enquiring minds. Go Science!!

]]> By: Peter K http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12101 Peter K Tue, 12 Feb 2008 20:21:42 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12101 Klaro, shouldn't you be in the "The End of the World is Nigh" blog? Cuz you certainly don't belong here. And Tony, why is it that these researchers keep making these foolish mistakes without consulting you first? And if what you say is true, then shouldn't it take 10 years to detect a wave passing? Or maybe 30 to get a wave pattern? Funny, no one has detected one, but you can tell us how they act with such certainty. Klaro, shouldn't you be in the "The End of the World is Nigh" blog?
Cuz you certainly don't belong here.
And Tony, why is it that these researchers keep making these foolish mistakes without consulting you first?
And if what you say is true, then shouldn't it take 10 years to detect a wave passing? Or maybe 30 to get a wave pattern? Funny, no one has detected one, but you can tell us how they act with such certainty.

]]> By: Tony Trenton http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12084 Tony Trenton Tue, 12 Feb 2008 17:44:37 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12084 Gravity waves have wave lengths in tens of light years. The only places we will find shorter wavelengths are when we are approaching Black Holes. Gravity waves are the distortion of the overal EMF. ( SpaceTime, Cosmic Background Radiation, The fabric of Spacetime) & are delineated by stars in the arms of spiral nebulae. The wavelengths are so long that the human race will probably be run before one comlete cycle passes our planet.. That is why it is so dificult to detect them from here. Gravity waves have wave lengths in tens of light years.

The only places we will find shorter wavelengths are when we are approaching Black Holes.

Gravity waves are the distortion of the overal EMF. ( SpaceTime, Cosmic Background Radiation, The fabric of Spacetime) & are delineated by stars in the arms of spiral nebulae.

The wavelengths are so long that the human race will probably be run before one comlete cycle passes our planet..
That is why it is so dificult to detect them from here.

]]> By: klar0 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12077 klar0 Tue, 12 Feb 2008 17:09:31 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12077 what is that supposed to be good for? helping to evolve? surely not..most of the researchers should have enough brains, to be able to tell that we as a human race will not make it far enough as such data has any relevance for us in the future. instead, this is just a personal thing, the greed for information, the satisfaction of your crave for knowledge. what is that supposed to be good for? helping to evolve? surely not..most of the researchers should have enough brains, to be able to tell that we as a human race will not make it far enough as such data has any relevance for us in the future. instead, this is just a personal thing, the greed for information, the satisfaction of your crave for knowledge.

]]> By: Daily Round Up, 12 Feb 2008 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12060 Daily Round Up, 12 Feb 2008 Tue, 12 Feb 2008 10:52:00 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12060 [...] serious side after last week’s dip, Universe Today is running a nice introductory article on gravitation wave detectors, and what insights they should be able to offer us into some of the neighborhood’s features [...]

[...] serious side after last week's dip, Universe Today is running a nice introductory article on gravitation wave detectors, and what insights they should be able to offer us into some of the neighborhood's features [...]

]]> By: anonymous http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12052 anonymous Tue, 12 Feb 2008 08:18:03 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12052 Except, Garygzr, no-one has detected them yet. Except, Garygzr, no-one has detected them yet.

]]> By: Garygzr http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12043 Garygzr Tue, 12 Feb 2008 05:03:30 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12043 Yet another of Einstein's "mistakes" is proven to have been correct all along. Yet another of Einstein's "mistakes" is proven to have been correct all along.

]]> By: black hole http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/comment-page-1/#comment-12036 black hole Tue, 12 Feb 2008 04:17:50 +0000 http://www.universetoday.com/2008/02/11/listening-for-gravitational-waves-to-track-down-black-holes/#comment-12036 hahahhahaha hahahhahaha

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