Using the speed of light to measure length in all frames

Using the speed of light to meaure distance in all frames requires the
assumption that a clock second is an interval of universal time in all
frames. Unfortunately SR also asserts that the passage of a clock second in
one frame does not correspond to the passage of a clock second in another
frame....this means that a clock second is NOT an interval of universal
time. What this mean is that different observers will have different
standards for a meter length.

However, the speed of light can be a measured constant math ratio in all
frames as follows:
Light path length of ruler (299,792,458m physical length)/the absolute time
content for a clock second co-moving with the ruler.
This new definition for the speed of light gives rise to a new theory of
relativity called Improved Relativity Theory (IRT). IRT includes SRT as a
subset. However, unlike SRT, the equations of IRT are valid in all
environments, including gravity. A description of IRT is in the paper
entitled "Unification of Physics" in my website (page 4):
http://www.geocities.com/kn_seto/index.htm

Ken Seto