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<DIV><FONT size=2 face=Arial>Your one-way speed of light.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I may have done some useful experimemnts for you in
1992. At that time, I was intrigued by the fact that very rarely during
history, it had been noticed by astronomers that one of the four Galilean Moons
of Jupiter "suddenly disappeared" for a few seconds. It was thought that
that only happened when the Earth was in a rare orbital plane of the Galilean
Moons, where the Sun's light to get to one of the moons got blocked by one of
the other moons. People (then) had realized that can only happen for a few
seconds, but, astoundingly, no one had ever done the math to predict the
event. So I decided to spend about six months in calculating the VSOP87
millions of terms to calculate the exact orbits. After about si months of
calculating, I arrived at a prediction of about four such events, several years
later (which no one had ever predicted prior to that). The events were
only visible in desolate locations, and I did not see any of them. Later,
some other people did similalr calculations.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>The point here is that the light had to travel
around 500 million miles to get to us after the actual occultation occurred near
Jupiter. Observation timing and occultation timing would have allowed a
really accurate calculation of a "one way trip" for the speed of
light.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>I don't know if anyone did that calculation, then
or later. But one of you might do the calculation I did regarding a mutual
occultation of Galilean moons, really accurately, and also observed when it was
witnessed here on Earth. I think you could get a really accurate value for
the one-way speed of light.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Carl Johnson</FONT></DIV>
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