Thread: Space time ??
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Old August 19th 05 posted to sci.physics
PD
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Posts: 22,012
Default Space time ??


TomGee wrote:
PD wrote:
TomGee wrote:
Worms doesn't know, that's why he sent you to a website. Spacetime is
a fictional place invented as a math construct so that we can calculate
the motion of objects through time.

According to Einsein, every object has a so-called "world line" which
indicates the object's past, current, and future position wrt its
motion through the universe.


Unroll a paper tape as you walk and mark it every 10 seconds as it
unwinds. Congratulations. You just make a world line. No math construct
there, Tom.


How stupid is it when you think that is a world line? How stupid is it
when you don't even know what a math construct is?


I'm in a room that is 10' by 12' by 14'. Is the central 2'x3'x5' block
of space a math construct or is it really there?

It's a shame that such a high-rated physicist (as you rate yourself)


"high-rated"? Please quote where I said that.

has no clue as to what constitutes a math construct.


It's your jargon. I was asking a question. It's a shame when someone
uses a pet phrase or a bit of jargon and then ridicules others when
they ask him what the heck he's talking about.

Somewhere along
your educational trail someone must have explained to you the
limitations of mathematics in relation to conclusions about reality.


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