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What is a good book on alternative theories of Special and/or General Relativity?

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- Thread starter Geremia
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What is a good book on alternative theories of Special and/or General Relativity?

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phyzguy

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What is a good book on alternative theories of Special and/or General Relativity?

Why do you want alternatives? These are two of the most accurate and best validated theories that we have.

- #3

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What is a good book on alternative theories of Special and/or General Relativity?

I'm not aware of any good BOOKS on alternate theories but the Internet is full of crackpot sites that will give you plenty of them. It won't be actual science, but if alternate theories are what you are after, there will be plenty of them.

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How do I know that if I don't know the alternatives and whether they're less or more accurate than SR or GR?Why do you want alternatives? These are two of the most accurate and best validated theories that we have.

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Evo

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That makes absolutely zero sense.How do I know that if I don't know the alternatives and whether they're less or more accurate than SR or GR?

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Evo

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I'm re-opening with this http://en.wikipedia.org/wiki/Alternatives_to_general_relativity

There are many alternatives to relativity that aren't crackpottery. Many of those alternatives are disproven however. It is allowed to discuss these theories, but only in an historic context since their validity has been disproven. Also, GR and SR are very successful and accurate theories, questioning their validity (in the cases its applicable) is not allowed. Thank you Micromass for this post.

There are many alternatives to relativity that aren't crackpottery. Many of those alternatives are disproven however. It is allowed to discuss these theories, but only in an historic context since their validity has been disproven. Also, GR and SR are very successful and accurate theories, questioning their validity (in the cases its applicable) is not allowed. Thank you Micromass for this post.

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phyzguy

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How do I know that if I don't know the alternatives and whether they're less or more accurate than SR or GR?

Just to make sure you're clear, there are no alternatives that are more accurate than either of these theories. If there were, they would be adopted.

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- #9

jtbell

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http://en.wikipedia.org/wiki/Test_theories_of_special_relativity

Some people misunderstand the purpose of these theories, and promote them as alternatives to SR.

Reference #4 on the Wikipedia page above is a book by Zhang that discusses this sort of thing in detail. (I've never seen the book itself, but I've read about it in discussions about SR)

- #10

atyy

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http://www.aapt.org/doorway/TGRUTalks/Weiss/WeissTalk1of9.htm

"GR is one of several possible covariant theories of gravity. It is only from observation and experiment that we conclude that GR is the valid theory."

An historically important alternative to GR was Nordstrom's theory of gravity, the first theory of gravity consistent with special relativity. It is not consistent with observation, because it predicts the wrong sign for the perihelion precession. Nordstrom's theory is formulated as a field in flat spacetime. Einstein and Fokker showed that Nordstrom's theory could be equivalently formulated as a curved spacetime theory. Later Einstein formulated GR, which is a different theory, but also based on curved spacetime, and which can be reformulated (under some conditions) as a field in flat spacetime.

Deviations from Lorentz invariance are discussed, including the use of alternative theories, by Mattingly http://relativity.livingreviews.org/Articles/lrr-2005-5/ [Broken] .

You can also see alternative theories to GR discussed in section 3.2 of http://relativity.livingreviews.org/Articles/lrr-2006-3/fulltext.html [Broken] .

Clifford Will has a good popular book "Was Einstein Right?".

"GR is one of several possible covariant theories of gravity. It is only from observation and experiment that we conclude that GR is the valid theory."

An historically important alternative to GR was Nordstrom's theory of gravity, the first theory of gravity consistent with special relativity. It is not consistent with observation, because it predicts the wrong sign for the perihelion precession. Nordstrom's theory is formulated as a field in flat spacetime. Einstein and Fokker showed that Nordstrom's theory could be equivalently formulated as a curved spacetime theory. Later Einstein formulated GR, which is a different theory, but also based on curved spacetime, and which can be reformulated (under some conditions) as a field in flat spacetime.

Deviations from Lorentz invariance are discussed, including the use of alternative theories, by Mattingly http://relativity.livingreviews.org/Articles/lrr-2005-5/ [Broken] .

You can also see alternative theories to GR discussed in section 3.2 of http://relativity.livingreviews.org/Articles/lrr-2006-3/fulltext.html [Broken] .

Clifford Will has a good popular book "Was Einstein Right?".

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WannabeNewton

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There seems to be ignorance here surrounding what an alternative theory to GR actually is. OP if you're interested, take a look at the end of chapter 4 of "Spacetime and Geometry"-Carroll and the references given therein.

You might also be interested in GR equivalent theories such as teleparallel gravity, in which case start here: http://arxiv.org/pdf/gr-qc/0011087v1.pdf

GR is to teleparallel gravity as Newton-Cartan theory is to standard Newtonian gravitation theory.

You might also be interested in GR equivalent theories such as teleparallel gravity, in which case start here: http://arxiv.org/pdf/gr-qc/0011087v1.pdf

GR is to teleparallel gravity as Newton-Cartan theory is to standard Newtonian gravitation theory.

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- #12

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A major alternative to GA is the gauge theory of gravity as presented in

"Geometric Algebra for Physicts" by Doran and Lasenby

https://www.amazon.com/dp/0521715954/?tag=pfamazon01-20

This is a first order theory including spin (there are two gauge fields) and it is formulated on flat space time. All measurable predictions (so far) agree with GA. However, if the gauge theory of gravity there are no wormholes.

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Some good ones I found, which all advocate Weber's electrodynamics:

Wesley's https://archive.org/details/SelectedTopicsInAdvancedFundamentalPhysics [Broken]

Assis's*Weber's Electrodynamics*

Assis's*Relational Mechanics* or his 2014 update, *Relational Mechanics and Implementation of Mach's Principle with Weber's Gravitational Force*.

Weber's force law only depends on relational quantities (i.e., relative position, relative velocity, relative acceleration).

Wesley's https://archive.org/details/SelectedTopicsInAdvancedFundamentalPhysics [Broken]

Assis's

Assis's

Weber's force law only depends on relational quantities (i.e., relative position, relative velocity, relative acceleration).

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