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Re: Wires, back sights and collimation
From: Alexandre Eremenko
Date: 2004 Nov 25, 21:36 -0500
From: Alexandre Eremenko
Date: 2004 Nov 25, 21:36 -0500
Dear George, Apparently you were confused (there are so many messages:-) My correction Wed Nov 24 2004 - 14:23:29 EST refers to my message Wed Nov 24 2004 - 13:57:13 EST entitled "Altitudes close to 90". It does not apply to the earlier message Wed Nov 24 2004 - 13:12:24 EST entitled "Wires, back sights and collimation". However, as I understand now, one sentence in the message "Wires, back sights and collimation" was also incorrect. This is the sentence that "The same argument applies to Blish prizm and George's self made periscope". But I think that the main part of that message, on "Hadley-Chauvenet formula" is correct, and I think that it DOES explain what was wrong with the backsights. Alex. On Fri, 26 Nov 2004, George Huxtable wrote: > Is he retracting his paragraph 2, > which shows "a big problem with measuring > distances close to 180 degrees"? No, I am not retracting this paragraph. I am retracting the other message concerning 90 degrees.
