From: Uncle Ben on 29 Jul 2010 00:46 There are those saying that the speed of light depends on the speed of the source. This explains the MMX experiment neatly, but the theory has now been refuted experimentally. Let the speed of light emitted by a source moving at speed v be c + kv, where k is to be determined experimentally. The theory propounded by Androcles, NoEinstein and others in this newsgroup implies that k=1. Einstein proposed that k=0. The following account is copied from the collection of experimental papers on SR at http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html#terrestrial --------------------------------------------------------------------------------------------- Operation of FLASH, a free-electron laser, http://vuv-fel.desy.de/. A free-electron laser generates highly collimated X-rays parallel to the relativistic electron beam that is their source. If the region that generates the X-rays is L meters long, and the speed of light emitted from the moving electrons is c+kv (here v is essentially c), then at the downstream end of that region the minimum pulse width is k(L/c)/(1+k), because light emitted at the beginning arrives before light emitted at the downstream end. For FLASH, L=30 meters, v=0.9999997 c (700 MeV), and the observed X-ray pulse width is as short as 25 fs. This puts an upper limit on k of 2.5×10-7. Optical extinction is not present, as the entire process occurs in very high vacuum. ---------------------------------------------------------------------------------------- k <= 0.00000025 Einstein wins decisively. Uncle Ben
From: Androcles on 29 Jul 2010 02:06 "Uncle Ben" <ben(a)greenba.com> wrote in message news:6e26ba71-82a2-4b2f-85d8-8a9ab6e8835e(a)j9g2000yqn.googlegroups.com... There are those saying that the speed of light depends on the speed of the source. This explains the MMX experiment neatly, but the theory has now been refuted experimentally. =============================================== "contracted" means stretched in relativlish double speak, so "refuted" means confirmed. Let the speed of light emitted by a source moving at speed v be c + kv, where k is to be determined experimentally. The theory propounded by Androcles, NoEinstein and others in this newsgroup implies that k=1. Einstein proposed that k=0. =============================================== "It is a capital mistake to theorize before one has data." -- Conan Doyle. A circularly orbiting light source will be seen to have a speed of light of c + vk where k = cos(omega.t), i.e. k varies from +1 to -1. http://www.androcles01.pwp.blueyonder.co.uk/Doolin'sStar.GIF If the distance is great enough, slow light will be passed by faster light emitted later. Spectral lines will blur into two peaks at slightly different wavelengths as forbidden lines appear. With a plethora of photons arriving all at once, the emitting object will suddenly appear bright, then it will dim slightly, then increase in brightness again, finally returning to a much dimmer state for t = 0 to Period. Typical period is 200 years. http://adsabs.harvard.edu/full/2000A%26A...356L..53B http://www.britastro.org/vss/gifc/00918-ck.gif "Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth." -- Conan Doyle. This explains the MMX experiment neatly, this explains the Sagnac experiment beautifully, this explains the ring laser gyroscope superbly, but the fact has long been confirmed empirically. Facts wins over fictional theory. Run away from this fact, Napoleon Bonehead: tau = t * sqrt(1-v^2/c^2) -- Einstein. (moving clocks run slow) xi = x'/sqrt(1-v^2/c^2) -- Einstein (moving lengths are stretched). Insane Napoleon Bonehead and Ayatollah Rabbi St. Einstein the Divine Idiot loses decisively.
From: Jerry on 29 Jul 2010 03:17 On Jul 28, 11:46 pm, Uncle Ben <b...(a)greenba.com> wrote: > There are those saying that the speed of light depends on the speed of > the source. This explains the MMX experiment neatly, but the theory > has now been refuted experimentally. > > Let the speed of light emitted by a source moving at speed v be c + > kv, where k is to be determined experimentally. The theory propounded > by Androcles, NoEinstein and others in this newsgroup implies that > k=1. Einstein proposed that k=0. > > The following account is copied from the collection of experimental > papers on SR at > > http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html#... > > --------------------------------------------------------------------------------------------- > Operation of FLASH, a free-electron laser,http://vuv-fel.desy.de/. > > A free-electron laser generates highly collimated X-rays parallel to > the relativistic electron beam that is their source. If the region > that generates the X-rays is L meters long, and the speed of light > emitted from the moving electrons is c+kv (here v is essentially c), > then at the downstream end of that region the minimum pulse width is > k(L/c)/(1+k), because light emitted at the beginning arrives before > light emitted at the downstream end. For FLASH, L=30 meters, > v=0.9999997 c (700 MeV), and the observed X-ray pulse width is as > short as 25 fs. This puts an upper limit on k of 2.5×10-7. Optical > extinction is not present, as the entire process occurs in very high > vacuum. > > ---------------------------------------------------------------------------------------- > > k <= 0.00000025 > > Einstein wins decisively. > > Uncle Ben It is not necessarily obvious to casual readers why generation of ultra-short X-ray pulses disproves ballistic theory. Consider a 10 fs pulse of electrons * traveling through the undulator at v=0.9999997 c, with X-rays |||| being continually emitted by the electrons as they wiggle through the undulator. Let k=1, i.e. photons are being emitted at 2c E----------------------------F *| electrons have traveled 1m, front of X-ray beam 2m *|| electrons have traveled 2m, front of X-ray beam 4m *||| electrons have traveled 3m, front of X-ray beam 6m *|||| electrons have traveled 4m, front of X-ray beam 8m etc. etc. etc. etc. etc. etc. etc. etc. etc. etc. etc. etc. *|||||||||||||||||||||||||||| *||||||||||||||||||||||||||||| *|||||||||||||||||||||||||||||| Difference between front and rear of 2c X-ray beam = 30 m Total X-ray pulse duration = 10 fs + 30 m/(2c) = 50 ns ======================================================= Let k = 0.1, i.e. photons are being emitted at 1.1c E----------------------------F *||| Difference between front and rear of 1.1c X-ray beam = 3 m Total x-ray pulse duration = 10 fs + 3 m/(1.1c) = 9.1 ns ======================================================= Let k = 0, i.e. photons are being emitted at c E----------------------------F *| Since the electrons are traveling at 0.9999997c, the difference between front and rear of the 1c X-ray beam = 9 um Total X-ray pulse duration = 10 fs + 9 um/c = 40 fs Jerry
From: harald on 29 Jul 2010 05:31 On Jul 29, 6:46 am, Uncle Ben <b...(a)greenba.com> wrote: > There are those saying that the speed of light depends on the speed of > the source. This explains the MMX experiment neatly, but the theory > has now been refuted experimentally. It was already discredited (or, "refuted", but that's in the eyes of the beholder) in the 19th century with the experiments of Fizeau on "Fresnel drag". Regards, Harald > Let the speed of light emitted by a source moving at speed v be c + > kv, where k is to be determined experimentally. The theory propounded > by Androcles, NoEinstein and others in this newsgroup implies that > k=1. Einstein proposed that k=0. > > The following account is copied from the collection of experimental > papers on SR at > > http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html#... > > --------------------------------------------------------------------------------------------- > Operation of FLASH, a free-electron laser,http://vuv-fel.desy.de/. > > A free-electron laser generates highly collimated X-rays parallel to > the relativistic electron beam that is their source. If the region > that generates the X-rays is L meters long, and the speed of light > emitted from the moving electrons is c+kv (here v is essentially c), > then at the downstream end of that region the minimum pulse width is > k(L/c)/(1+k), because light emitted at the beginning arrives before > light emitted at the downstream end. For FLASH, L=30 meters, > v=0.9999997 c (700 MeV), and the observed X-ray pulse width is as > short as 25 fs. This puts an upper limit on k of 2.5×10-7. Optical > extinction is not present, as the entire process occurs in very high > vacuum. > > ---------------------------------------------------------------------------------------- > > k <= 0.00000025 > > Einstein wins decisively. > > Uncle Ben
From: Uncle Ben on 29 Jul 2010 07:51
On Jul 29, 3:17 am, Jerry <Cephalobus_alie...(a)comcast.net> wrote: > On Jul 28, 11:46 pm, Uncle Ben <b...(a)greenba.com> wrote: > > > > > > > There are those saying that the speed of light depends on the speed of > > the source. This explains the MMX experiment neatly, but the theory > > has now been refuted experimentally. > > > Let the speed of light emitted by a source moving at speed v be c + > > kv, where k is to be determined experimentally. The theory propounded > > by Androcles, NoEinstein and others in this newsgroup implies that > > k=1. Einstein proposed that k=0. > > > The following account is copied from the collection of experimental > > papers on SR at > > >http://math.ucr.edu/home/baez/physics/Relativity/SR/experiments.html#... > > > --------------------------------------------------------------------------------------------- > > Operation of FLASH, a free-electron laser,http://vuv-fel.desy.de/. > > > A free-electron laser generates highly collimated X-rays parallel to > > the relativistic electron beam that is their source. If the region > > that generates the X-rays is L meters long, and the speed of light > > emitted from the moving electrons is c+kv (here v is essentially c), > > then at the downstream end of that region the minimum pulse width is > > k(L/c)/(1+k), because light emitted at the beginning arrives before > > light emitted at the downstream end. For FLASH, L=30 meters, > > v=0.9999997 c (700 MeV), and the observed X-ray pulse width is as > > short as 25 fs. This puts an upper limit on k of 2.5×10-7. Optical > > extinction is not present, as the entire process occurs in very high > > vacuum. > > > ---------------------------------------------------------------------------------------- > > > k <= 0.00000025 > > > Einstein wins decisively. > > > Uncle Ben > > It is not necessarily obvious to casual readers why generation > of ultra-short X-ray pulses disproves ballistic theory. > > Consider a 10 fs pulse of electrons * traveling through the > undulator at v=0.9999997 c, with X-rays |||| being continually > emitted by the electrons as they wiggle through the undulator. > > Let k=1, i.e. photons are being emitted at 2c > > E----------------------------F > *| electrons have traveled 1m, front of X-ray beam 2m > *|| electrons have traveled 2m, front of X-ray beam 4m > *||| electrons have traveled 3m, front of X-ray beam 6m > *|||| electrons have traveled 4m, front of X-ray beam 8m > etc. etc. etc. etc. etc. etc. etc. etc. etc. etc. etc. etc. > *|||||||||||||||||||||||||||| > *||||||||||||||||||||||||||||| > *|||||||||||||||||||||||||||||| > Difference between front and rear of 2c X-ray beam = 30 m > Total X-ray pulse duration = 10 fs + 30 m/(2c) = 50 ns > > ======================================================= > > Let k = 0.1, i.e. photons are being emitted at 1.1c > > E----------------------------F > *||| > Difference between front and rear of 1.1c X-ray beam = 3 m > Total x-ray pulse duration = 10 fs + 3 m/(1.1c) = 9.1 ns > > ======================================================= > > Let k = 0, i.e. photons are being emitted at c > E----------------------------F > *| > Since the electrons are traveling at 0.9999997c, the difference > between front and rear of the 1c X-ray beam = 9 um > Total X-ray pulse duration = 10 fs + 9 um/c = 40 fs > > Jerry- Hide quoted text - > > - Show quoted text - Thanks for the explcation. |