Talk:Fluid solution

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Hi CH. I'm a little concerned about the path of your worldline ... you seem to have accessed 2 of the links 3 days in the future !!! --Mpatel 16:42, 27 July 2005 (UTC)[reply]

Hi, MPatel, yes, there is a known but mysterious bug in my code which sometimes temporarily reverses the direction of my tangent vector. Very confusing!---CH (talk) 22:58, 27 July 2005 (UTC)[reply]

Define the variables in the mathematical definition[edit]

I think we need to spell out what the variables are in the mathematical definition. What are a, b, and g? --Doradus 17:10, 28 April 2006 (UTC)[reply]

Where are you looking? The only a,b I saw at a glance were indices. (We at WikiProject GTR should probably adopt an enforce a convention such as Greek for 0-3 and Roman for 1-3.) ---CH 08:23, 29 April 2006 (UTC)[reply]

WikiProject GTR is apparently defunct, alas. ---CH 23:31, 30 June 2006 (UTC)[reply]

Students beware[edit]

I created the original version of this article, which concerns a topic dear to my heart, and I had been monitoring it for bad edits, but I am leaving the WP and am now abandoning this article to its fate.

Just wanted to provide notice that I am only responsible (in part) for the last version I edited; see User:Hillman/Archive. I emphatically do not vouch for anything you might see in more recent versions, although I hope for the best.

Good luck in your search for information, regardless!---CH 23:31, 30 June 2006 (UTC)[reply]

Derivation[edit]

Could we have a derivation of the mathematical definition? Say, from first principles (e.g., kinetic theory of an ideal gas), in a manner that explains how each of the final terms would be measured physically? Cesiumfrog (talk) 02:51, 17 June 2009 (UTC)[reply]

Question about equation[edit]

Dear Editor, I have a question about the radiation dominant matter tensor. Your equation is T^ab=uV^aV^b+pg^ab. However, I read from other source is T^ab=uV^aV^b-pg^ab. Is the minus sign or the positive sign correct? And, Is the pressure P equal to radiation pressure KT^4/c or 1/4uC^2? Or both are correct? Thank you very much! —Preceding unsigned comment added by Wanchung Hu (talk • contribs) 07:34, 28 October 2010 (UTC)[reply]