Defense Intelligence Reference Document Negative Mass Propulsion

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Comparing this result with (66), one sees that he would obtain the same distanced', if
he uses a contracted rod as a measuring stick, or Einsteins's constant light velocity
postulate. The velocity of light between A and B by using a rod to measure the distance
and the time it takes a light signal in going from A to B and back to A, of course, will
turn out to be equal to c, because according to (72)
2d' (74)
Rather than using a reflected light signal to measure the distance er, the observer at A
may try to measure the one-way velocity of light by first synchronizing the clock B with
A and then measure the time for a light signal to go from A to B. However, since this
synchronization procedure also uses reflected light signals, the result is the same. For
the velocity he finds
d' d' 2d'
1/2(11 +1 2 )-1 1
A A A
(75)
By subtracting the equations (70) one finds that
(76)
which shows that from an absolute point of view the "true" reflection time t R at clock B
is only then equal to t 8 , if v = 0. From an absolute point of view the propagation of
light is isotropic only in the distinguished reference system, but anisotropic in a
reference system in absolute motion against the distinguished reference system. This
anisotropy remains hidden due to the impossibility to measure the one-way velocity of
light. The impossibility is expressed in the Lorentz transformations themselves,
containing the scalar c 2 rather than the vector c, through which an anisotropic light
propagation would have to be expressed.
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