KARL JASPERS FORUM

TA106 (Mller)

 

Commentary 5 (to R1, end-note)

 

SPEED OF LIGHT

by Alain Chouinard

13 March 2008, posted 22 March 2008

 

You wrote:

"NOTE

The following is a puzzle (at least for me) about relativity and MIR (= ontology) which I have not seen discussed; but somebody must have thought about it in the past hundred years. If a light ray goes from left to right at speed c, and another from right to left at speed c, how fast do they move in relation to each other ? In an MIR-view they ought to meet at twice the speed of light (and Einstein was an ontologist). Or is perhaps c+c=c ? If on the other hand reality is always subject-inclusive ( la Bohr), the speed of light is that perceived by an observer, and then the question is nonsensical, because the rays don't see each other; the problem disappears. (But : I can simultaneously see both rays with the help of mirrors. Does that affect the question ?) --- I would appreciate help from those who are more familiar with this kind of problem."

 

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Right, c + c indeed does = c but in order to find it (the true velocity when approaching the speed of light), the old Newtonian formula (W = v + v') does not work.

 

We need to use this new one (which works well for any velocities):

 

v + v
W = ------------
1 + vv/c

 

W = relative velocity

v = velocity of the first ray of light

v' = velocity of the second ray.

c = constant speed of light.

 

After calculation we will find: W = c

 

The speed of light cannot be surpassed.

 

What happens is that the continuum space-time will change; in short, time is not fixed but varies with the observer. (That is the clock time, as an observer would bring one with him on his travel at light speed, not the subjective impression of time.)

The MIR seems dependent on the fixed speed of light which is really not very well defined or understood.

A physicist could explain it better though....

 

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Alain Chouinard

e-mail <indhus (at) yahoo.com>