Quit whining and go help out.Being the most sensitive and most complicated gravitational experiment ever created, LIGO is susceptible to a great deal of instrumental and environmental sources of noise called glitches. These glitches are difficult to model using computers, can mimic true astrophysical signals, and generally make LIGO less sensitive to gravitational waves.
By selecting the right classification for a given glitch, you are helping computers learn to do this classification themselves on much larger datasets, which helps scientists determine and eliminate the sources of noise. Humans still are far better than computers at recognizing subtle differences across images and when an image simply does not fit within a known category. Please help us identify all of the glitch morphologies and open up an even bigger window into the gravitational wave universe! - Gravity Spy
Evidence of Gravitational Waves, or Confirmation Bias?
- Solar
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
There also exist a LIGO & Citizen Scientist collaboration where YOU can help 'train' computers to identify "glitches" and "triggers":
"Our laws of force tend to be applied in the Newtonian sense in that for every action there is an equal reaction, and yet, in the real world, where many-body gravitational effects or electrodynamic actions prevail, we do not have every action paired with an equal reaction." — Harold Aspden
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
Have you ever considered reading the discovery papers and supplemental papers from LIGO rather than relying on a popular and out of date PBS article?moonkoon wrote:To add some perspective to this discussion, here are a few quotes from a PBS report about the Advanced LIGO that suitably unqualified readers may find helpful in their efforts to assess the reliability of the interpretations of transient signals detected by the LIGO machine. Apologies if this report has already been mentioned
SNIP
http://www.pbs.org/wgbh/nova/next/physi ... nced-ligo/
Even assuming we have the cosmological models right, based on the amount of data to hand, these initial squiggle interpretations seem a little heroic, in my opinion.
"Every single ion is going to start cooling off instantly as far as I know…If you're mixing kinetic energy in there somehow, you'll need to explain exactly how you're defining 'temperature'" - Mozina
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
What is the half-life, or total life of a Neutron?
interstellar filaments conducted electricity having currents as high as 10 thousand billion amperes
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
"A free neutron will decay with a half-life of about 10.3 minutes but it is stable if combined into a nucleus. This decay is an example of beta decay with the emission of an electron and an electron antineutrino."Cargo wrote:What is the half-life, or total life of a Neutron?
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
I'm mainly interested in the isolation technology and how it deals with natural seismic activity ranging from major displacement to things like longer period temperature and pressure effects, so I have read some of the excellent and detailed LIGO literature on the subject of keeping the apparatus 'afloat'.
Their whole effort, engineering, information sharing etc. is impressive. Any skepticism about interpretation or process does not detract from these achievements.
The recent series of bold claims may well turn out to be spot-on, but I think a much longer time-frame is needed before the interpretations can be added to the canon.
And the time-frame may be even longer if the low number of detections to date is any indication. Maybe 200 light years out is a bit too optimistic, no?
Their whole effort, engineering, information sharing etc. is impressive. Any skepticism about interpretation or process does not detract from these achievements.
The recent series of bold claims may well turn out to be spot-on, but I think a much longer time-frame is needed before the interpretations can be added to the canon.
And the time-frame may be even longer if the low number of detections to date is any indication. Maybe 200 light years out is a bit too optimistic, no?
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
http://www.internationalskeptics.com/fo ... ost7721905Higgsy wrote:I have no idea what this rant is all about, but the facts remain that you would fail a foundational undergraduate EM theory exam and you haven't shown the mathematical ability to solve simultaneous partial differential equations in vector algebra.Michael Mozina wrote:
I guarantee you that you personally won't ever help poor clueless Clinger, and Mr. verbal abuse (RC)...
Get down off your high horse before you hurt yourself.
http://www.cesura17.net/~will/Ephemera/ ... index.html
The fact remains that you and your EU/PC hater posse are absolutely and utterly *clueless* about even the most rudimentary theoretical aspects of EM field theory, not to mention MHD theory. I spent *months* trying to get poor Clinger to recognize the fact that he can't transfer magnetic field energy into particle kinetic energy (AKA "magnetic reconnection") without a single plasma particle to his name! Clinger and the hater posse claimed to demonstrate "magnetic reconnection" in pure vacuum, in a *NULL* point no less, but your completely inept math professor *never* produced his missing math formula to describe a non-zero rate of "magnetic reconnection" in his ridiculous vacuum contraption. Your MIT math professor failed his own math test in truly epic fashion!
Clinger painted himself right into a mathematical corner and you folks had to ban me to shut me up when it became damn apparent that he had no clue what he was talking about. I hounded him for that missing math formula for *months*, and now for *years*, and I'm never going to see it.
You folks may know math, but you know almost *nothing* about even basic EM field theory or basic MHD theory, starting with the fact that MHD theory describes the behaviors of *plasma*, not vacuums. How ignorant can you folks be anyway?
Magnetic "lines" don't even exist in the first place, anymore than you will find actual topology "lines" on a mountain top! Holy Cow. They cannot disconnect from, nor reconnect to other magnetic lines, because the *lines* are not real to start with! They are nothing but a teaching tool to describe the magnetic field topology, just like topology lines on a map describe the topological layout of 3 dimensional surface features.
Whatever my math limitations might be, they utterly *pale* in comparison to your complete ineptitude in physics theory.
Get over yourselves, or go help poor clueless Clinger figure out his missing math formula to describe a non zero rate of 'reconnection' in his vacuum contraption. Better yet, go help him figure out that he screwed up big time.
Oy Vey. I've *never* seen anyone stick their foot in their mouth so deeply in my entire life. The whole hater posse at JREF/ISF demonstrated their complete ignorance of even basic EM field theory. They literally cannot tell the physical difference between very ordinary magnetic flux in a vacuum, and the process of transferring magnetic field energy into particle acceleration known as "magnetic reconnection" Wow! It's no wonder why you folks are still wallowing around in the dark ages of physics and reduced to using placeholder terms for human ignorance and pseudoscience to describe our universe.
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
I was pretty much full stop when they claimed to know the mass of the black holes. I should of known neutron stars would be next...lol
prediction!!! round 3 is black hole meets neutron star!
prediction!!! round 3 is black hole meets neutron star!
its all lies.
- Zyxzevn
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
I forgot to reference the LIGO website (see link).Zyxzevn wrote: Now we just do not agree on how the frequency.
The frequency .... would be the resonance frequency if there were no Fabry–Pérot cavities.
So based on this basic LIGO information we can indeed find a theoretical resonance of:LIGO wrote: With Fabry Perot cavities, LIGO's interfereometer arms are effectively 1120 km long, making them 144,000 times bigger than Michelson's original instrument! This bit of 'mirror magic' greatly increases LIGO's sensitivity and makes it capable of detecting changes in arm-length thousands of times smaller than a proton, all while keeping the physical size of the interferometer manageable.
133.9 Hz (2240km wavelength).
It is probably changed in upgrades or they implemented the Fabry–Pérot cavity in a different way,
because we see different frequencies.
More ** from zyxzevn at: Paradigm change and C@
- Zyxzevn
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
What if they are all glitches?Solar wrote: Quit whining and go help out.
More ** from zyxzevn at: Paradigm change and C@
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
My university background is in EM, and I have never seen such bullshit as magnetic reconnection.Michael Mozina wrote: You folks may know math, but you know almost *nothing* about even basic EM field theory or basic MHD theory, starting with the fact that MHD theory describes the behaviors of *plasma*, not vacuums. How ignorant can you folks be anyway?
With that astronomy has hit a new low.
If any of magnetic reconnection were true, we can put all physics in the drain.
It is actually very similar to astrology.
In both cases, imaginary lines are doing miraculous things.
After looking at the details, it seems that they have simply mistaken the Zeeman-effect with the Stark-effect.
AND these "scientists" have lost all connection with reality.
I made [url=http://www.thunderbolts.info/wp/forum/phpB ... =3&t=16662]a special thread to go into magnetic reconnection on the sun[url].
I think that good physical examples make it much clearer.
I also explain there what is wrong with the theory as described on wikipedia.
More ** from zyxzevn at: Paradigm change and C@
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
The nonsense of gravitational collapse and neutron compact objects that create infinite black holes. Only supported by more illogical thoughts of quantum theory and up/down anti-states. All just so they can overcome the inherent electrostatic/magnetic forces that do govern nature. Up next, LIGO detects worm hole opening and alternate universe.
interstellar filaments conducted electricity having currents as high as 10 thousand billion amperes
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
You could make the effort to learn how the masses of binaries are deduced from the data or you could stick with the uninformed argument from personal incredulity. And yes, NS/BH mergers are a possibility.Webbman wrote:I was pretty much full stop when they claimed to know the mass of the black holes. I should of known neutron stars would be next...lol
prediction!!! round 3 is black hole meets neutron star!
"Every single ion is going to start cooling off instantly as far as I know…If you're mixing kinetic energy in there somehow, you'll need to explain exactly how you're defining 'temperature'" - Mozina
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
The rate of detections is pretty much what was expected for this stage of the sensitivity refinement, and assuming the improvements go as planned, the rate of detections should be much higher by 2021.moonkoon wrote:I'm mainly interested in the isolation technology and how it deals with natural seismic activity ranging from major displacement to things like longer period temperature and pressure effects, so I have read some of the excellent and detailed LIGO literature on the subject of keeping the apparatus 'afloat'.
Their whole effort, engineering, information sharing etc. is impressive. Any skepticism about interpretation or process does not detract from these achievements.
The recent series of bold claims may well turn out to be spot-on, but I think a much longer time-frame is needed before the interpretations can be added to the canon.
And the time-frame may be even longer if the low number of detections to date is any indication. Maybe 200 light years out is a bit too optimistic, no?
"Every single ion is going to start cooling off instantly as far as I know…If you're mixing kinetic energy in there somehow, you'll need to explain exactly how you're defining 'temperature'" - Mozina
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
No, you still don’t understand. They are explaining to lay people how signal recycling improves the sensitivity by comparing it to effectively increasing the path length. But the actual mechanism to improve sensitivity by using a Fabry-Perot is an increase in the finesse of the fringes not an increase in the cavity length. The cavity length is 4 km and the fundamental mode is 37.5kHz. But whether it is 37.5kHz or 134Hz is irrelevant as the radiation in the interferometer is all at Nd-YAG 1046 nm and there is no radiation or signal at the fundamental eigenmode. You have had this fact explained to you 15 times now and you are so bone headed and wedded to your nonsense that you refuse to accept it.Zyxzevn wrote:I forgot to reference the LIGO website (see link).Zyxzevn wrote: Now we just do not agree on how the frequency.
The frequency .... would be the resonance frequency if there were no Fabry–Pérot cavities.So based on this basic LIGO information we can indeed find a theoretical resonance of:LIGO wrote: With Fabry Perot cavities, LIGO's interfereometer arms are effectively 1120 km long, making them 144,000 times bigger than Michelson's original instrument! This bit of 'mirror magic' greatly increases LIGO's sensitivity and makes it capable of detecting changes in arm-length thousands of times smaller than a proton, all while keeping the physical size of the interferometer manageable.
133.9 Hz (2240km wavelength).
It is probably changed in upgrades or they implemented the Fabry–Pérot cavity in a different way,
because we see different frequencies.
"Every single ion is going to start cooling off instantly as far as I know…If you're mixing kinetic energy in there somehow, you'll need to explain exactly how you're defining 'temperature'" - Mozina
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Re: Evidence of Gravitational Waves, or Confirmation Bias?
Nothing to see here other than the argument from personal incredulity.Cargo wrote:The nonsense of gravitational collapse and neutron compact objects that create infinite black holes. Only supported by more illogical thoughts of quantum theory and up/down anti-states. All just so they can overcome the inherent electrostatic/magnetic forces that do govern nature. Up next, LIGO detects worm hole opening and alternate universe.
"Every single ion is going to start cooling off instantly as far as I know…If you're mixing kinetic energy in there somehow, you'll need to explain exactly how you're defining 'temperature'" - Mozina
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