Re: Laser ranging to moon begs questions


I wasn't taking the piss. I didn't know what you meant.

That must local jargon, very local. Why would you clip out my
informatonal comment and save all the persiflage?



"Taking the piss" = "Mocking someone" in Australian. Sorry.



But if you mean that you are hoping that somebody who actually works at one
of these facilities reads this ng, you are probably out of luck.

No, an informational paper with the details. In the Pioneer program
there were all kinds of diagrams, and remarks that some data batches
were 5 days long.


Craig posted references to a whole lot of papers. Have you looked at them?



You could
just phone one of the observatories or visit one in person; I am sure that
they would be tickled to have somebody display an interest in what they do,
and would be very helpful.

Actually, one of the OP's on this thread, who earlier was quite
voluble in the opinion that processing single photons was a "piece of
cake", who should be able to shed light.

Why? Did he work at one of the observatories? If he didn't, I would think you would be far better off listening to Craig, who obviously has a lot of knowledge on the subject (and, I suspect, rather more than someone who described single photon capture as a "piece of cake").


I thought it would be
interesting to hear more.

If the answers you want are not in the papers that Craig has referenced, and Craig or myself can't answer them, then its pretty easy to call or visit one of these observatories and ask them about how the equipment works, if you really want to know.


At least we're still on topic, "begging the
question".

I don't see that. I can't see what "question has been begged". I cannot see what question you have asked which has not been answered. The only substantive question I have seen is "why doesn't my calculation give the correct observed value for the return photon count". Many answers have already been given for this. Have you any other questions?

Perhaps you would be better off going through the calculations in the papers provided - which do supply the correct numbers - and see how the return photon count is calculated. You can then modify your calculation to match the parameters in the papers, and you should be able to find the error in your calculation yourself.

If there is anything you can't understand in the papers, you can ask for clarification here. If I can help, I will (although whilst I know a lot about EM radiation and information theory, I know nothing about the details of the experimental setup. Craig does seem to know a lot about the experimental setup as well; if you ask nicely, I am sure he will help you understand the papers if I can't.)

And, as I said, as a final resort ring the authors of the papers, or the observatories, or visit one yourself. I doubt this will be necessary, but that option always exists.

So, what don't you understand in the papers that Craig has referenced?




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