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→Conflation of Relativity and Relativism & Robert H. Dicke & Barack Obama: new section
::Yeah, I've heard of that. But the photon has zero mass. [[User:AndyFrankinson|AndyFrankinson]] 20:20, 26 June 2012 (EDT)
::Yeah, I've heard of that. But the photon has zero mass. [[User:AndyFrankinson|AndyFrankinson]] 20:20, 26 June 2012 (EDT)
:::Newtonian physics doesn't know about zero-mass particles, hence it doesn't make a unique prediction. One possible interpretation is to say "zero mass -> zero gravitational force -> no bending". Another interpretation is to take the mathematical limit of the equations for ''m''->0. Since ''ma = GMm/r<sup>2</sup>'', the mass of the photon cancels and you get ''a = GM/r<sup>2</sup>'', even in the limiting case ''m=''0. This leads to bending by half the amount as predicted by relativity (and observed). --[[User:FrederickT3|FrederickT3]] 22:47, 26 June 2012 (EDT)
:::Newtonian physics doesn't know about zero-mass particles, hence it doesn't make a unique prediction. One possible interpretation is to say "zero mass -> zero gravitational force -> no bending". Another interpretation is to take the mathematical limit of the equations for ''m''->0. Since ''ma = GMm/r<sup>2</sup>'', the mass of the photon cancels and you get ''a = GM/r<sup>2</sup>'', even in the limiting case ''m=''0. This leads to bending by half the amount as predicted by relativity (and observed). --[[User:FrederickT3|FrederickT3]] 22:47, 26 June 2012 (EDT)
== Conflation of Relativity and Relativism & Robert H. Dicke & Barack Obama ==
There appears to be significant resistance to relativity that is largely unfounded. The theory is in no way contradictory to Christian beliefs, or religion in general. As a conservative, right wing encycloepdia, I expect resistance to moral relativism.
From reading the article, it appears many of the authorship appear to conflate Einstein's relativity with moral relativism. The two concepts are entirely and utterly unrelated other than both containing the word "relativ". Newton's model of gravity as a simple inverse square law is a very close approximation to Einstein's model. The difference is Newton's is very slightly inaccurate and cannot be used where extreme accuracy is needed. Relativity can.
What's the difficulty with relativity here? The central premise is very basic and seems pretty self evident upon a little thought. There is no absolute frame of reference in a universe in which everything moves relative to everything else. Something can only be defined as moving with respect to (relative to) something else. And there you have it, general relativity.
There is also a problem with the section on Robert H. Dicke. He wasn't a major critic of relativity. Indeed, he developed some of the most stringent tests (relativity is highly falsifiable). It passed them. All.
I tracked down and read the article regarding relativity and law (Obama, etc.). It is quite a nice analogy, and is no way an attempt to use relativity to justify anything. The analogy is more closely related to the uncertainty principle - you cannot measure a particles position without changing or influencing it. You cannot just observe, as you have to intervene in order to do so. The same is true in American law (with a much stronger reliance on test cases, etc, than in say, English law). You cannot deal with one case without it having vast implications for others. That is all the paper is saying. Again, there is no agenda against conservatism or religion in this paper.
[[User:LucoDaw|LucoDaw]] 23:45, 5 July 2012 (EDT)