Thursday, April 14, 2016

Schwarzschild metric (I)

Maybe I should start explaining what a metric is. Or curvature. Or the energy-stress tensor...
Nahhh... :)

Let's run before walk with an example. It's funnier this way.

Legend says Karl Schwarzschild was a german artillery officer during WWI, but the truth is he was a physicist and astronomer before that. He died several months after finding the first analytical solution to EFE's, of an illness called Pemphigus (click at your own risk). You have read right: Schwarzchild did find an analytical solution to Einstein Field Equations. Exactly. Analytically. Manly.

Truth be said, he did it for the "simplified" case of a spherical static object, but it's a good aproximation, specially for people like me who need to learn. Are you ready? I prevent you I have (finally) learned how to use latex in blogger...


Wednesday, April 13, 2016

Coming back soon!

Two years and a half. 
Two years. And. A. Half.

Lot of things have happened since the last post. Long story short, I have a little bit of free time again, so I'm preparing new posts in the point where I left.

Next stop, Schwartzschild metric.

See you soon!

Saturday, October 19, 2013

EFE -for beginners!

A short post again, sorry.
Looking for info into old posts, youtube has pointed out a nice video from user DrPhysicsA which seems... shiny!

Old fashinated english accent (I think it's English, pretty sure not American nor Australian, nor Irish... what else could it be?) for 2 hours of EFE fun!