spacetime

Here's some basic background covering how mathematical models of space and time have evolved since ancient times, from the Pythagorean Rule to Newtonian mechanics, Special Relativity and General Relativity.

http://www.theory.caltech.edu/people/patricia/st101.html

Spacetime 101

http://xxx.lanl.gov/abs/gr-qc/9707062

Quantum Field Theory in Curved Spacetime

http://www.angelfire.com/pq/spaceflow/

THE SPACETIME PHENOMENA

    

http://www.fourmilab.ch/gravitation/foobar/

Bending Spacetime in the Basement

http://www.spacetimerelativity.com/

http://archive.ncsa.uiuc.edu/Cyberia/NumRel/NumRelHome.html

SPACETIME WRINKLES

http://online.itp.ucsb.edu/online/plecture/witten/

Duality, Spacetime and Quantum Mechanics

http://www.nature.com/nsu/010614/010614-6.html

Stiff challenge to spacetime

  

http://www.fourmilab.ch/gravitation/orbits/

Orbits in Strongly Curved Spacetime

http://www.ling.su.se/staff/hartmut/uhr.htm

Measuring time and other spatio-temporal quantities

http://home.earthlink.net/~dolascetta/PhysicsFrameSet.html

A Discrete Quantum Spacetime Model Underlying the Standard Model of Particle Physics

http://home.wanadoo.nl/ronald.koster/minkowski.html

Minkowkski Spacetime

http://astro.uwaterloo.ca/~wesson/home.html

http://plato.stanford.edu/entries/spacetime-holearg/

The Hole Argument