Traveler wrote:
On 17 Aug 2005 14:27:30 -0700, "Igor" wrote:



DARTH VADER wrote:
What exactly is space time ?

A four dimensional metric space of indefinite signature.

Why cant we travell through the 4th dimention (time axis)?

We can and we do. The rotating second hand on my watch is a clear
indication of this. Time on this level seems to have a directional
arrow associated with it, but that is a thermodynamic consequence
corresponding to increasing entropy. On a fundamental level, most laws
of physics don't care which direction time goes.

Time does not change. Time is an abstract parameter used to denote
change in physics.

Only in Newtonian physics. In relativity time is a coordinate.

To describe a change in time would require a
meta-time, and a meta-meta-time for the meta-time, ad infinitum.

Wrong. All changes in spacetime in relativity are compared to
invariant proper time intervals along the worldline. Coordinate time
and proper time are two entirely different things.


Nasty Little Truth About Spacetime Physics:
http://www.rebelscience.org/Crackpots/notorious.htm

Don't let the morons in the physics community fool you, especially the
idiots, Dick van de merde and Sam Wormley. ahahaha... ahahaha...


What are you jealous that they are truly educated in this area and seem
to know what the hell they're talking about?