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

Integrity of Einsteinians



 
 
Thread Tools Display Modes
  #1  
Old September 19th 17, 11:45 AM posted to sci.astro
Pentcho Valev
external usenet poster
 
Posts: 8,078
Default Integrity of Einsteinians

Ultimate catastrophe in physics:

Neil Turok, September 2013: "It's the ultimate catastrophe: that theoretical physics has led to this crazy situation where the physicists are utterly confused and seem not to have any predictions at all." http://www.macleans..ca/politics/ott...odern-physics/

June 2015: "My view is that this has been a kind of catastrophe - we've lost our way," he [Neil Turok] says." http://blog.physicsworld.com/2015/06/22/why-converge/

Physics is in a golden age:

Neil Turok, June 2016 (11:47): "Physics is in a golden age. It really is." http://pirsa.org/displayFlash.php?id=16060107

Lee Smolin rejects Einstein's relative time, a consequence of Einstein's constant-speed-of-light postulate:

http://www.guardian.co.uk/books/2013...reality-review
"And by making the clock's tick relative - what happens simultaneously for one observer might seem sequential to another - Einstein's theory of special relativity not only destroyed any notion of absolute time but made time equivalent to a dimension in space: the future is already out there waiting for us; we just can't see it until we get there. This view is a logical and metaphysical dead end, says Smolin."

https://www.amazon.com/Time-Reborn-C.../dp/B00AEGQPFE
"Was Einstein wrong? At least in his understanding of time, Smolin argues, the great theorist of relativity was dead wrong. What is worse, by firmly enshrining his error in scientific orthodoxy, Einstein trapped his successors in insoluble dilemmas..."

Lee Smolin worships Einstein's constant-speed-of-light postulate and its consequences:

http://www.independent.com/news/2013...7/time-reborn/
QUESTION: Setting aside any other debates about relativity theory for the moment, why would the speed of light be absolute? No other speeds are absolute, that is, all other speeds do indeed change in relation to the speed of the observer, so it's always seemed a rather strange notion to me.
LEE SMOLIN: Special relativity works extremely well and the postulate of the invariance or universality of the speed of light is extremely well-tested.. It might be wrong in the end but it is an extremely good approximation to reality.
QUESTION: So let me pick a bit more on Einstein and ask you this: You write (p. 56) that Einstein showed that simultaneity is relative. But the conclusion of the relativity of simultaneity flows necessarily from Einstein's postulates (that the speed of light is absolute and that the laws of nature are relative). So he didn't really show that simultaneity was relative - he assumed it. What do I have wrong here?
LEE SMOLIN: The relativity of simultaneity is a consequence of the two postulates that Einstein proposed and so it is deduced from the postulates. The postulates and their consequences are then checked experimentally and, so far, they hold remarkably well.

Joao Magueijo declares that special relativity is "the root of all the evil":

http://www.amazon.com/Faster-Than-Sp.../dp/0738205257
Joao Magueijo, Faster Than the Speed of Light, p. 250: "Lee [Smolin] and I discussed these paradoxes at great length for many months, starting in January 2001. We would meet in cafés in South Kensington or Holland Park to mull over the problem. THE ROOT OF ALL THE EVIL WAS CLEARLY SPECIAL RELATIVITY. All these paradoxes resulted from well known effects such as length contraction, time dilation, or E=mc^2, all basic predictions of special relativity. And all denied the possibility of establishing a well-defined border, common to all observers, capable of containing new quantum gravitational effects."

Joao Magueijo teaches ... general relativity:

https://en.wikipedia.org/wiki/Jo%C3%A3o_Magueijo
"Joao Magueijo studied physics at the University of Lisbon. He undertook graduate work and Ph.D. at Cambridge University. He was awarded a research fellowship at St John's College, Cambridge, the same fellowship previously held by Paul Dirac and Abdus Salam. He has been a faculty member at Princeton and Cambridge, and is currently a professor at Imperial College London where he teaches undergraduates General Relativity and postgraduates Advanced General Relativity."

Pentcho Valev
  #2  
Old September 20th 17, 01:20 PM posted to sci.astro
Pentcho Valev
external usenet poster
 
Posts: 8,078
Default Integrity of Einsteinians

Normally, Einsteinians are practitioners of doublethink - they both reject and worship some concept so that the gullible world can come to the conclusion that in science concepts and their negations harmoniously coexist. The champion is undoubtedly Steven Jonathan Carlip, professor of physics at the University of California, Davis. Carlip is a practitioner of triple- and even quadruplethink. A synopsis of his teaching: The speed of light is constant by definition. Einstein said the speed of light is variable in a gravitational field - an interpretation which is perfectly valid and makes good physical sense - but later the speed of light in general relativity became constant. So constant that "it does not even make any sense to say that it varies". Finally, in a gravitational field, light falls with twice the acceleration of ordinary falling matter:

http://www.desy.de/user/projects/Phy..._of_light.html
Steve Carlip: "Is c, the speed of light in vacuum, constant? At the 1983 Conference Generale des Poids et Mesures, the following SI (Systeme International) definition of the metre was adopted: The metre is the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. This defines the speed of light in vacuum to be exactly 299,792,458 m/s. This provides a very short answer to the question "Is c constant": Yes, c is constant by definition! [...] Einstein went on to discover a more general theory of relativity which explained gravity in terms of curved spacetime, and he talked about the speed of light changing in this new theory. In the 1920 book "Relativity: the special and general theory" he wrote: "...according to the general theory of relativity, the law of the constancy of the velocity of light in vacuo, which constitutes one of the two fundamental assumptions in the special theory of relativity [...] cannot claim any unlimited validity. A curvature of rays of light can only take place when the velocity of propagation of light varies with position." Since Einstein talks of velocity (a vector quantity: speed with direction) rather than speed alone, it is not clear that he meant the speed will change, but the reference to special relativity suggests that he did mean so. This interpretation is perfectly valid and makes good physical sense, but a more modern interpretation is that the speed of light is constant in general relativity. [...] Finally, we come to the conclusion that the speed of light is not only observed to be constant; in the light of well tested theories of physics, it does not even make any sense to say that it varies."

http://arxiv.org/pdf/gr-qc/9909014v1.pdf
Steve Carlip: "It is well known that the deflection of light is twice that predicted by Newtonian theory; in this sense, at least, light falls with twice the acceleration of ordinary "slow" matter."

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
Empricists with intelligence and integrity oriel36[_2_] Amateur Astronomy 8 March 16th 13 10:52 PM
Galileo Integrity Information [email protected] Science 0 January 18th 06 07:22 PM
Galileo Integrity Information [email protected] Technology 0 January 18th 06 07:21 PM
Deep Impact - Data Integrity Stephen Paul Amateur Astronomy 9 July 7th 05 07:59 AM
On the integrity of flight controllers Derek Lyons Space Shuttle 1 August 27th 03 01:36 AM


All times are GMT +1. The time now is 10:18 PM.


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.