A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Astronomy and Astrophysics » Astronomy Misc
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Variable Speed of Light Particles in Gravitational Field



 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old September 13th 17, 08:34 AM posted to sci.astro
Pentcho Valev
external usenet poster
 
Posts: 8,078
Default Variable Speed of Light Particles in Gravitational Field

According to Newton's theory, in a gravitational field light particles fall with the same acceleration as ordinary falling bodies - on the Earth, the acceleration of falling photons is g. This is an obvious consequence of the equivalence principle and many Einsteinians teach it, not knowing that in this case "g" is fatal for Einstein's relativity:

"If we accept the principle of equivalence, we must also accept that light falls in a gravitational field with the same acceleration as material bodies." http://sethi.lamar.edu/bahrim-cristi...t-lens_PPT.pdf

The variation of the speed of light in a gravitational field predicted by Newton's emission theory has been confirmed experimentally:

University of Illinois at Urbana-Champaign: "Consider a falling object. ITS SPEED INCREASES AS IT IS FALLING. Hence, if we were to associate a frequency with that object the frequency should increase accordingly as it falls to earth. Because of the equivalence between gravitational and inertial mass, WE SHOULD OBSERVE THE SAME EFFECT FOR LIGHT. So lets shine a light beam from the top of a very tall building. If we can measure the frequency shift as the light beam descends the building, we should be able to discern how gravity affects a falling light beam. This was done by Pound and Rebka in 1960. They shone a light from the top of the Jefferson tower at Harvard and measured the frequency shift. The frequency shift was tiny but in agreement with the theoretical prediction. Consider a light beam that is travelling away from a gravitational field. Its frequency should shift to lower values. This is known as the gravitational red shift of light." https://courses.physics.illinois.edu...re13/L13r.html

Albert Einstein Institute: "One of the three classical tests for general relativity is the gravitational redshift of light or other forms of electromagnetic radiation. However, in contrast to the other two tests - the gravitational deflection of light and the relativistic perihelion shift -, you do not need general relativity to derive the correct prediction for the gravitational redshift. A combination of Newtonian gravity, a particle theory of light, and the weak equivalence principle (gravitating mass equals inertial mass) suffices. [...] The gravitational redshift was first measured on earth in 1960-65 by Pound, Rebka, and Snider at Harvard University..." http://www.einstein-online.info/spot...t_white_dwarfs

As the quotation below suggests, Pound, Rebka and Snider knew that their experiments had confirmed the variation of the speed of light predicted by Newton's emission theory of light, not the gravitational time dilation predicted by Einstein's relativity:

R. V. Pound and G. A. Rebka, Jr, APPARENT WEIGHT OF PHOTONS http://journals.aps.org/prl/pdf/10.1...sRevLett.4.337

R. V. Pound and J. L. Snider, Effect of Gravity on Gamma Radiation: "It is not our purpose here to enter into the many-sided discussion of the relationship between the effect under study and general relativity or energy conservation. It is to be noted that no strictly relativistic concepts are involved and the description of the effect as an "apparent weight" of photons is suggestive. The velocity difference predicted is identical to that which a material object would acquire in free fall for a time equal to the time of flight." http://virgo.lal.in2p3.fr/NPAC/relat...iers/pound.pdf

Pentcho Valev
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
VARIABLE SPEED OF LIGHT PARTICLES Pentcho Valev Astronomy Misc 2 June 23rd 15 10:57 PM
GRAVITATIONAL REDSHIFT = VARIABLE SPEED OF LIGHT Pentcho Valev Astronomy Misc 2 May 18th 15 11:58 AM
FIELD, PARTICLES, SPEED OF LIGHT Pentcho Valev Astronomy Misc 13 September 8th 08 07:16 PM
VARIABLE SPEED OF LIGHT IN A GRAVITATIONAL FIELD Pentcho Valev Astronomy Misc 30 August 3rd 08 01:10 AM


All times are GMT +1. The time now is 06:44 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 SpaceBanter.com.
The comments are property of their posters.