Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: closed universe, flat space?
Replies: 48   Last Post: May 5, 2013 2:45 PM

 Messages: [ Previous | Next ]
 dan.ms.chaos@gmail.com Posts: 409 Registered: 3/1/08
Re: closed universe, flat space?
Posted: Apr 25, 2013 11:27 AM

> It begs the question. What is more reality,space or time?   TreBert
Both should have equal reality, they're like imaginary numbers.
Although, we can be considered as 'creatures of time' and not of
space ,for photons on the other hand , the story is different . I've
found it interesting to consider, if you have a frame moving in
constant speed in special relativity, relative to some parameter m ,
and you consider the motion of a particle in that frame :

the sum of the squares of its motion trough time , and its motion
trough space , is equal to the motion of light in space relative to
the frame . To explain , we humans experience a lot of time because we
move slowly trough space . If we were to move faster trough space, we
would get further , in space, but time would pass slower for us , our
clocks will tick slower. At the opposite end of the spectrum , we have
the photon : it moves at an incredible speed trough space, yet it
doesn't ,itself, experience the passage of time (its clock has
topped) . For suitable units of measurement , the sum of the squares
of 'speed trough time' and 'speed trough space' would always be
constant . In this sense, everything always moves at the same speed
relative to some intrinsic motion of the universe . However , they
have different orientations, resulting in different 'projected' speeds
trough space ,and time. Suffice to say, the human wastes its 'speed'
traveling trough time and barely moving in space ('time waits for no
one , it passes you by' , if you move at an extremely slow speed
trough space) , while the photon wastes its 'speed' traveling trough
space and not moving at all trough time .