(19)Thanks Richard and everyone for your guidance. My good friend used Atmos to design a 4" f/12 using FPL51 and it looks absolutely stunning. I had no idea a
(6)Hi Paul, You are very correct in this. For passive 3D the projector(s) and viewers both need polarizers and the screen needs to be silver to maintain the
(18)Many thanks for the explanation Paul, especially that on Twyman stress. I guess for someone that is picking up the threads after a 50 year absense there is
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(12)hi Velinoff, a few things to consider: misalignment of the laser apparently is not one of these. The wrong shape ( =coma) of the mirror is not likely - i have
(42)... Very wise, I arrived back once and found the machine still going with the mirror just teetering on the edge of the table, while the aligator arms had
(5)lAST ADDITION somebody know Barry D malpas he whrote this http://www.coconinoastro.org/OBSERVING%20SUNSPOTS%20USING%20A%20PINHOLE%20CAMERA.pdf
(9)Yes But Where is the pleasure to built I try first my print cartrig edeal Jack 47’n71 ‘W Keep you inform of result On 6/8/2015 2:42 AM, Peter
(3)Anthony, Obviously your having fun. But if I may suggest something, get rid of the RJ-11 connectors. They are flaky and were never designed for how the
(5)I have the project to made a lens like de e jone one 75 f focal for sun veing from 1\4 plate ordinary glass Have 2 10 inch mirror dismantle for the
(5)Yes, Anthony, Channeling pitch laps under cold flowing water works very well. My preferred technique. However, what to do with all those fine flakes ?
(4)softens at 140C decomposes at 160C I googled, pvc melts at what temperature On Sunday, May 17, 2015 2:54 PM, "jacot email@example.com [atm_free]"
(3)Thanks Mel, I forgot to try the central star, next time.... Zoran On Friday, May 8, 2015 8:14 PM, "firstname.lastname@example.org [atm_free]"
(3)Jack, It is generally believed that the heat and winds produced by the T-Tauri stage of the suns formation, both much greater than todays', generated as stars
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