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Old 28th February 2012, 03:21 PM   #531
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Quote:
Originally Posted by simon7000 View Post
A loose fiber optic connector either does not directly couple the light resulting in greater loss or bounces some of it smearing the impulses. What the result becomes depends on the circuitry that decodes the light.
Was it proven in double blind tests? People know that cables matter!
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Old 28th February 2012, 03:28 PM   #532
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Was it proven in double blind tests? People know that cables matter!
Actually it is a common measurement around here.

The network guys like to see single mode fiber installed in venues as it has less light loss per km than the easier to terminate multi-mode stuff.

The multimode has an inner diameter of 62.5 um the single mode they like is 8.3. What they don't understand is that the same light source is used for both. So the single mode starts out wit 10 log (8.3^2/62.5^2) less light! (17.5 db) So the advantage is only with runs much longer than entirely around an American football stadium!

The other issue is that a connection may show more loss than expected. That is typical of a bad termination, but since my guys test and record every connection, the usual problem is the rear panel connection is inserted but not twist locked!

Virtually all the large sound systems today use fiber!
 
Old 28th February 2012, 03:34 PM   #533
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He took that ancient Indian name to name the information-energy field he describes in his theory.
He lifted it from Steiner et al (circa 1900). The word is often translated as aether, appropriate.
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Old 28th February 2012, 03:37 PM   #534
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Originally Posted by simon7000 View Post
So the advantage is only with runs much longer than entirely around an American football stadium!

We use multimode up to about 310 meters, and up to 850 meters we are using single mode.

jn
 
Old 28th February 2012, 03:54 PM   #535
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Einstein claims the speed of light is constant. 299,792,457 meters per second, in a vacuum.

Light appears to travels slower through materials, however it is still constant, it appears variable.

The distance through a 100' of fiber optic is longer then 100' of vacuum, due to refractions. Not all refractions are lost, some are recombined with the original signal.
 
Old 28th February 2012, 04:06 PM   #536
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We use multimode up to about 310 meters, and up to 850 meters we are using single mode.

jn
Which makes sense. Then there was the TV crew who plugged their cameras into a 75 ohm BNC feeding RG6 style coax from one end of the stadium to the other and wondered why they got a very low level signal at the far end!
 
Old 28th February 2012, 06:43 PM   #537
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Originally Posted by GloBug View Post
Relativity has been proven many, many times with nuclear clocks on airplanes, get with the times.

Nuclear clocks, and all nuclear devices you can thank relativity for.

Talk about crackpots, anybody can toss that junk on a free 50webs server.
Special Relativity has been debunked hundreds of times using twin paradox arguments. Part of the brainwashing involves the hypnotic suggestion that only Einstein's theories conform to experiments. The Lorentz aether theory had the Lorentz transformations before Special Relativity. Special Relativity is impossible to prove or test. Light cannot be proven to be absolutely constant since no real instrument is absolutely accurate. Special Relativity only applies where there's no acceleration or gravity. The physicists say the earth is accelerating as it circles the sun and gravity exists everywhere in the universe. Therefore Special Relativity can't be tested. We are left with the Lorentz aether theory and assymmetric Lorentz transformations.
 
Old 28th February 2012, 06:50 PM   #538
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Quote:
Originally Posted by 7n7is View Post
Special Relativity has been debunked hundreds of times using twin paradox arguments. Part of the brainwashing involves the hypnotic suggestion that only Einstein's theories conform to experiments. The Lorentz aether theory had the Lorentz transformations before Special Relativity. Special Relativity is impossible to prove or test. Light cannot be proven to be absolutely constant since no real instrument is absolutely accurate. Special Relativity only applies where there's no acceleration or gravity. The physicists say the earth is accelerating as it circles the sun and gravity exists everywhere in the universe. Therefore Special Relativity can't be tested. We are left with the Lorentz aether theory and assymmetric Lorentz transformations.
Do you have a random crank phrase generator or do you actually write this stuff?
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Old 28th February 2012, 07:10 PM   #539
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Do you have a random crank phrase generator or do you actually write this stuff?
The spelling is not too good! Must not be a machine.
 
Old 28th February 2012, 08:01 PM   #540
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I can translate: "Albert Einstein was very smart fella; he invented a common constant that nobody can check and measure"

The problem is, some people want to invent own constant and put in motion around it everything including speed of light.
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