Category talk:General relativity

message: While doing the work described above, I noticed that under "Articles in this category", several articles are listed after an asterisk. I also see that "Event horizon" and "Gravitational lens" are listed at the end, after a curly brace.  I suspect this might reflect some broken wikicode, but haven't figured out what is causing this.
: See Template_talk:General_relativity --EMS | Talk 22:19, 27 July 2005 (UTC)
thread_title: Is this a feature or a bug?

message: Hi, Techguru, thanks for your interest in these pages.  Einstein said "everything should be made as simple as possible, but no simpler".  I feel that the comment you added to the little introductory blurb on this category page, "simply put relativity is stating that time is relative to the observer", was too simple.  Much too simple.  That's why I removed it.  By the way, you typed the first letter of your sentence immediately after the period of the preceding sentence, and you omitted (I think) a comma after "simply put", so in future edits you may want to be more careful about punctuation.---CH  (talk) 18:13, 5 August 2005 (UTC)
thread_title: Reversion of comment by Techguru

message: I think that the intro has gotten too big.  The goal is to explain what this category is about, not to document GR itself.  (After all, we have the general relativity article for that.)  I would like to shorten it back to about 3 medium length sentences or perhaps 4 short sentences.  However, I do not see a good way to do that just yet.  (What I am considering doing is pruing everything starting with "In this theory ...".  I notice that doing so removes some of my own verbage, but I guess that says something about the utility of that verbage.)  --EMS | Talk 19:03, 7 August 2005 (UTC)
thread_title:  Intro is too big. 

message: Hi all, I think it is important to distinguish between 
#concepts which belong to general relativity itself, such as 
#*ADM energy
#*Birkhoff's theorem
#*Einstein field equation
#*Einstein-Hilbert action
#*Einstein tensor (defined more generally, but very closely associated with this theory)
#*Frame fields in general relativity (since on frames in gtr, not frames in Lorentzian manifolds)
#*Numerical relativity
#*Penrose-Hawking singularity theorems
#*Petrov classification
#*Regge calculus
#*Segre classification (sort of)
#*Weak-field approximation, plus billions and billions of forthcoming articles, e.g. on Initial value formulations and ADM formulation, 
#concepts which involve Lorentzian manifolds, such as
#*Christoffel symbols
#*Asymptotically flat spacetime
#*Einstein notation
#*Geodesic deviation equation
#*Geodesic (general relativity) (needs to be renamed!)
#*Ricci decomposition
#*Spacetime symmetries
#*Spherically symmetric spacetime
#*Static spacetime
#*Stationary spacetime,plus some articles I've already moved to a new category.
Note that the new category :Category:Lorentzian manifolds concerns concepts concerning Lorentzian manifolds (four dimensional psuedo-Riemannian manifolds with 1+3 signature), including their interpretation as spacetimes.
Many articles are misnamed, e.g. Gravitational singularity should probably be Curvature singularity, in which case it should perhaps be in the new category.
Some others are a bit iffy:
*Geometrized unit system (I'd be inclined to keep it here)
Thoughts? ---CH  (talk) 12:08, 2 September 2005 (UTC)
thread_title: Recategorizations