Traveler wrote:
On 17 Aug 2005 20:42:12 -0700, "Igor" wrote:


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.

Funny, but I doubt that nature gives a rat's ass which physics you
use.

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.

Certainly. Proper time is measured in seconds, as it should. But a
coordinate is measured in meters, right?

Wrong again. Coordinates can have any units you choose to give them.
You must have been absent that day!

Remember ct? Now the meter is
a unit of what, again? ct is measured in what, again?

Furlongs!



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?

Jealous, your ass. Wormley and van de merde still can't figure out
that nothing can move in spacetime. But then again, neither can you.
You are all a bunch of ****ing idiots. Not to mention ass kissers.
ahahaha... ahahaha...

And one more thing, before I forget. I got your education hanging,
right here. ahahaha...


Still jealous. Well, out of ignorance comes frustration, so I can
understand your situation. You periodically peek out from under your
own self-imposed rock to see what is going on in the real world. It's
never too late to really learn this stuff you know. If you need to
critique physics, it would help to have a knowledge of the subject.
Otherwise you will perpetually come off looking like a complete ass and
you'll always remain what you are right now -- a pathetic little usenet
punk who was never able to grasp even the basics. It's up to you.