The speed of light is NOT constant

[kelticwizard]

Same here, Leadbelly. Haven't had much time to post here lately, hope to change that soon.

Good to see you too.

[jneutron]

Originally Posted by 7n7is

Herbert Dingle pointed out that the so called relative motion between a conductor and magnet that Einstein used as an example of relative motion in his famous 1905 article isn't really relative motion. If you move the conductor in a magnetic field you get an instantaneous change in current. If you move the magnet, the changing magnetic field (electromagnetic wave) has to travel at the speed of light to reach the conductor before there is a change in current in the conductor.

Which means what?? Moving the conductor is local to the conductor, so the "instantaneous" is of course obvious, and local, no violation.

Moving the magnet is not local to the wire, so again, the delay due to C is obvious.

The magnet does not have to see the wire move in order for the wire to generate a voltage.

The magfield is already at the wire..

If that is what Dingle stated, he needs to go back to the thought experiment and fix it.

Cheers, John

[chris661]

Originally Posted by kelticwizard

Chris-I think you mean envision rather than comprehend. You can work with the mathematics, but actually forming a mental picture of light taking time to travel from a nearby object to your eye instead of being instantaneous is something you can't deal with.

Yes, that's the one. Thanks for clearing that up.

[7n7is]

Here's an interesting website. It translates sehr gut mit google translate.

Google Translate

[SY]

Didn't take you long to get to the Jew haters. There's plenty more, I'm sure you can dig them up as well, the crank sites love 'em.

Deutsche Physik - Wikipedia, the free encyclopedia

[Gyuri]

Robert B. Laughlin, Nobel Laureate in Physics, endowed chair in physics, Stanford University, had this to say about ether in contemporary theoretical physics:

“ It is ironic that Einstein's most creative work, the general theory of relativity, should boil down to conceptualizing space as a medium when his original premise [in special relativity] was that no such medium existed . . .
The word 'ether' has extremely negative connotations in theoretical physics because of its past association with opposition to relativity. This is unfortunate because, stripped of these connotations, it rather nicely captures the way most physicists actually think about the vacuum. . . . Relativity actually says nothing about the existence or nonexistence of matter pervading the universe, only that any such matter must have relativistic symmetry.

It turns out that such matter exists. About the time relativity was becoming accepted, studies of radioactivity began showing that the empty vacuum of space had spectroscopic structure similar to that of ordinary quantum solids and fluids. Subsequent studies with large particle accelerators have now led us to understand that space is more like a piece of window glass than ideal Newtonian emptiness. It is filled with 'stuff' that is normally transparent but can be made visible by hitting it sufficiently hard to knock out a part. The modern concept of the vacuum of space, confirmed every day by experiment, is a relativistic ether. But we do not call it this because it is taboo.”[3]
”
The quotation originates from here:
Aether theories - Wikipedia, the free encyclopedia

[7n7is]

Thim, H.W.;
Microelectron. Inst., Johannes Kepler Univ., Linz, Austria

This paper appears in: Instrumentation and Measurement, IEEE Transactions on
Issue Date: Oct. 2003
Volume: 52 Issue:5
On page(s): 1660 - 1664
ISSN: 0018-9456
References Cited: 25
Cited by : 2
INSPEC Accession Number: 7778275
Digital Object Identifier: 10.1109/TIM.2003.817916
Date of Current Version: 27 October 2003
Sponsored by: IEEE Instrumentation and Measurement Society

Abstract

An experiment is described showing that a 33-GHz microwave signal received by rotating antennas is not exhibiting the frequency shift ("transverse Doppler effect") predicted by the relativistic Doppler formula. The sensitivity of the apparatus used has been tested to be sufficient for detecting frequency shifts as small as 10-3 Hz which corresponds to the value of (v/c)2 = 5.10-14 used in the transverse Doppler shift experiment reported here. From the observed absence of the transverse Doppler shift it is concluded that either the time dilation predicted by the standard theory of special relativity does not exist in reality or, if it does, is a phenomenon which does not depend on relative velocities but may be a function of absolute velocities in the fundamental frame of the isotropic microwave background radiation.

IEEE Xplore - Absence of the relativistic transverse Doppler shift at microwave frequencies

[SY]

I guess you couldn't be bothered to see if that paper was actually correct.

See: Sfarti, IEEE Trans Inst and Meas 59:2, 494 (2010).


Ooops.

[7n7is]

Sfarti can't be trusted. He's a relativity gangster.

[7n7is]

Originally Posted by SY

Didn't take you long to get to the Jew haters. There's plenty more, I'm sure you can dig them up as well, the crank sites love 'em.

Deutsche Physik - Wikipedia, the free encyclopedia

I guess we never landed a man on the moon, either, since Werner von Braun was a Nazi and his science is invalid.