Difference between revisions of "Talk:Theory of relativity"

Revision as of 04:29, March 10, 2007

Great article

1) Superb avoidance of difficult science in a scientific article. Best not to be confusing. 2) Nice attention on Eddington rather than the theory itself. 3) Good mind reading regarding Eddington's dreams. 4) Nice work ignoring the facts about things that have been inventing using GR such as GPS

And rather than simply be sarcastic, I will work on a better article over the weekend. One that actually discusses the science.

Special and general relativity

This article seems to combine the two. They are different ideas and need to be distinguished. JoshuaZ 19:21, 24 February 2007 (EST)

Agreed. Separate articles would make more sense. I don't have time to do the necessary work right now, but if no one else does it I'm sure I'll get to it eventually. Tsumetai 10:11, 25 February 2007 (EST)

If someone will split the pages, I'll help flesh them out.--ZLewis 10:42, 1 March 2007 (EST)

Moral Relativism line needs to go.

I have never heard anyone advocating moral relativism use either of the theories of relativity to do it. Actually, the only people who I've ever heard that from are relativity deniers like Fred Hutchison. Not only does that show a grave misunderstanding of the scientific theory, but also a misunderstanding of the phrase "moral relativism". In any case, you can't draw moral implications from scientific theories. When someone says that Einstein's theory of relativity implies some kind of moral relativism, they're really saying "The geometric theory of gravity allows me to internalize my moral decisions".

That line is ridiculous and irrelevant, and needs to disappear.

I don't like it at all in its present form, but the word "relativity" is thrown around casually quite a lot and there might be justification for a section with a title like "what relativity is not."

E.g. Scott Adams, author of the Dilbert comic strip, says "Einstein’s great insight was assuming reality was not fixed, and that everything was relative to the observer" and goes on to say "I have extended that thinking to people..."

I think using Scott Adams as a reference or a jumping-off point for discussion really constitutes holding one's self to a dismally low standard. He's posted his own theories of physics to his blog a few times, freely admitting that he knows they're wrong and that he just takes pride in the fact that the layman can't successfully challenge them. In all honesty, moral relativism is a perfectly valid subject for an article, but it doesn't have anything to do with physics other than an unfortunate overlap of words and definitions in English. Putting this section in just makes the authors look like they're bristling for a fight. Willforpresident 21:25, 7 March 2007 (EST)

What follows is interesting if not very profound, but dragging Einstein into it is not helpful.

It just goes to show the value of jargon. When scientists give something a simple name like "relativity," people assume they understand it and misapply it. I'm just thankful that people aren't very familiar with mathematics or we'd be hearding about crop circles in Galois fields. Dpbsmith 12:50, 25 February 2007 (EST)

I like the "what relativity is not" idea. Might be worth pointing out that relativity in physics didn't start with SR; there is such a thing as Galilean relativity, after all. Tsumetai 12:57, 25 February 2007 (EST)

not "attributed" to Einstein.

isn't just "attributed" to Einstein. When someone says "attributed", they typically mean that someone is given credit for an idea somewhat apocryphally. Einstein obtained the relation in his Zur Elektrodynamik bewegter Körper, in which, from the Lorentz transformations, he obtained the relations:

and then, as :

.

And these bizarre polemics are undermining what little credibility this encyclopedia has. Sneering at Einstein and glorifying the contributions of Ponicare makes all of the sense of arguing over whether Leibniz or Newton invented calculus, particularly since there are very palpable differences between Einstein and Ponicare's treatments of the subjects. And, I see someone has removed the "there is no evidence for the general theory", but I'm sure it will be back by this afternoon. That's ever weirder -- how on earth can someone say that "there is no evidence" and then, in the same article, link to black holes?

I'm not going to go back to that article on Dirac Notation to fill up all of those links with articles until I'm sure one of the administrators isn't going to replace them with accusations of quantum mechanics being tantamount to the Kabbalah, or something equally stupid. (unsigned)

It is a fact that Poincare published E=mc2 and most of the rest of special relativity before Einstein. Maybe you think that this is sneering or glorifying, but it is a fact, and there is no serious dispute about it. RSchlafly 20:17, 9 March 2007 (EST)

Old version

I was just looking at an old version of this page, and the absurdity of the "scientific" claims made, combined with the low quality of the writing and blatant inaccuracies, make the article, quite frankly, almost intellectually offensive. I realize that this has since been rectified, but if this is the quality that is to be expected of Conservapedia articles, then I do not blame those who dismiss it as a failed attempt. Geekman314^{(contact me)} 15:12, 9 March 2007 (EST)

be specific in your statements if you expect a response.--Aschlafly 19:04, 9 March 2007 (EST)

I find the content reverted to in the above edit to be quite disturbing.

• The General Theory of Relativity does not reject Isaac Newton's "God-given" theory of gravitation, it simply provides an explanation for why it functions.

that was obviously vandalism.--Aschlafly 19:04, 9 March 2007 (EST)

• It is most certainly not a problem that the General Theory of Relativity is based upon mathematics as opposed to empirical evidence, as seems to be insinuated by this version.

mathematics is mathematics, and unless there is empirical evidence it is not science.

Mathematics describes physics. Geekman314^{(contact me)} 22:33, 9 March 2007 (EST)

• Albert Einstein's work did contribute to the development of the nuclear bomb. E=mc² describes the duality between matter and energy, the principle upon which the nuclear bomb, and all other nuclear devices, functions.

nope. E=mc² is a statement of relativistic effect, not atomic power.

Yes, but the mass lost in the nuclear reaction is converted to energy, which is the fundamental power of the weapon. Geekman314^{(contact me)} 22:33, 9 March 2007 (EST)

• "Nothing useful has even been built based on the theory of relativity." Sure, sure… nuclear power plants aren't useful at all, are they? GPSs aren't useful at all, are they?

GPSs are useful, but they weren't built using General Relativity.

Without realativity describing gravitation redshift, the timing for the GPS satelite would be off by about 45 microseconds/day. Further reading on the matter at http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html --Mtur 19:08, 9 March 2007 (EST)

I think Lorenzian relativity accounts for the GPS time dilation more precisely. But that isn't really my point. The GPS clocks are updated based on communications between the satellites and ground stations, not based on any theory. If you claim that GPS is built based on relativity, then you should be able to prove your case with an historical reference. No such proof exists.--Aschlafly 20:39, 9 March 2007 (EST)

That observation does not support the false claim that GPS is based on General Relativity. Other theories predict a dilation of time, and satellites are obviously synchronized based on communication, not theory.--Aschlafly 19:11, 9 March 2007 (EST)

No, they have GR corrections built in. Tsumetai 19:15, 9 March 2007 (EST)

Can you please cite an alternate theory that accounts for the time dilation experiecned by the GPS satelites along with the math that matches that of relativity? --Mtur 19:17, 9 March 2007 (EST)

• "Most conservatives are skeptical since science is supposed to be about finding proof before a theory becomes a fact, not after." And where are the statistics that show this?

Don't know who wrote that statement, but it's a correct statement of what science means.

I was refering to the claim that "most conservatives are skeptical since science…" (emphasis added) Geekman314^{(contact me)} 22:33, 9 March 2007 (EST)

• Gravitons are not predicted by general relativity; much to the contrary, the two have not been reconciled.

• It is currently believed that space does indeed have curvature, what is described as "negative" curvature, giving it a saddle-like shape overall, but curvature nonetheless.

The denial of demonstrated principles because they do not coincide with your worldview is not scientific, it's purely reactionary nonsense. I'm not impressed by Examples of Bias in Wikipedia citing Wikipedians taking issue with this as a "bias". Geekman314^{(contact me)} 16:11, 9 March 2007 (EST)

OK, fine, no one is trying to impress you. The Wikipedia entry was biased and demonstrably false, as explained in Bias in Wikipedia.--Aschlafly 19:04, 9 March 2007 (EST)

Oh, and I mean no offense to Aschlafly. Although I do not necessarily agree with all his views, I do not wish to disparage him, and I recognize his value as a contributor. I've reconciled with him on this issue, and want to make clear that I do not mean this comment as an attack. Geekman314^{(contact me)} 22:44, 9 March 2007 (EST)

I just realized that I had somehow managed to fail to see that Aschlafly's edit was a simple revert to a previous version. I don't necessarily agree with the decision, and I don't retract the points with which I take issue, but Aschlafly is not responsible for the content, and I'm sorry for insinuating that he was. I've changed some of my comment to reflect the fact that the edit was simply a revert. Geekman314^{(contact me)} 23:29, 9 March 2007 (EST)