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Is there any point/interest in a summary review of Eric Reissner's work on the deformation of thin shells? He developed complete solutions to the problem and ...
Likewise. From: AltAzInitiative@yahoogroups.com [mailto:AltAzInitiative@yahoogroups.com] On Behalf Of Steve Taylor Sent: Friday, May 04, 2012 7:13 PM To:...
Also, Luc Arnold's papers have a lot of math (non-FEA) relating to circular or ring supports and thin meniscus modeling. He clearly based his work on ...
Mel, Is this the gentleman you are referencing: http://www.obs-hp.fr/~larnold/homepage.html If so, before I email him at his contact address, is there a print...
Yes, see http://www.obs-hp.fr/~larnold/publi.html I couldn't find his paper on the 60x1 inch meniscus mirror and his support ring analysis though. Mel Bartels ...
... This is briefly discussed on p571 of Arnold, Luc. Optimized axial support topologies for thin telescope mirrors. Optical Engineering 34:2 (1995) 567-574....
The paper I'm referring to has pictures of the 60x1 inch mirror on a flexing ring support designed to be updated at a rate of 10Hz. Mel Bartels From:...
Dear all, I subscribed to the list last february, and this is my first post here. The message with the subject 'Eric Reissner's work' by Mark definitly catched...
Hi John (and Howard, Richard, Mel, Dan, and Dave), Good meeting yesterday at LCOGT HQ in Santa Barbara. Congradulations on first light on your first light at...
Steve, Thanks for converting it. I had almost succeeded in forgetting PostScript (a version of Forth with floating point and graphics) from the old Sun days ...
Dear Luc (and Mel, Peter, Mark, Steve, and All), Thanks for contributing to the very interesting and informative email thread on thin meniscus mirrors. I...
Hi Vijay, Chris, and Jack (and Dwight and Kiran), You three really should get together. You are coming at exactly the same problem--tech transfer from high...
Dear Milan, Thanks you very much for mentioning what will certainly be an excellent meeting in Belgrade. I am sure that some of the Alt-Az initiative ...
Hello everyone, My copy of Jack Hitt's neat new book "Bunch of Amateurs: A Search for the American Character" arrived recently. About ten pages concentrate on...
Hi Russ, Hi Tom (and Joseph, Don, Greg, Bruce, and Gary), Do send along an image I would like to see the quality. ** Many thanks for your email. I'll send...
Russ, As for using a flip mirror, you still have the two-channel dichroic splitter I made for our work don’t you? You could use that for guiding and it will...
Hi All, School is over here, and I'm thinking about helping out with the Portland VI Workshop (announcement pasted in below) by really beating the bushes and ...
Several years ago there was a lot of talk about "super polishing" optics. I ran across an article that gave numbers for various techniques and substrates. I...
Thanks Greg......... that is very interesting. I have been looking into a replacement for pitch ( which I have grown to hate ) so a composite replacement is...
Hi Art (and Red Hot Mirror Makers and Bruce), Below is an authoritative definition of light buckets. I've also attached a paper on the topic. The Red Hot...
Hi Allen, Abe, Mounir, Laura, Mike, Jodi, John^4, Dave^2, Richard, LLuvia, Art, Bruce, Steve, Susan, Matthew, Mary, Paul, Andy, and Tim, You would all be...
Hi Bruce, Yes, with the 1.0 meter Big Blue telescope headed your way in a few weeks, the 1.0 meter Shiny Sam being completed by Reed, Chris, and myself, and ...
Hi Kiran, Many thanks for the info on the process for casting an aluminum backer for a spin-cast epoxy mirror. This could be a good route to go with Lisa's ...
Hi Russ, They have a machine that can do 700mm dia and the parts are comparatively small at 500 x 500 mm odd. For the secondary best to start with a solid disc...
Hi All, I keep seeing SiTech control systems in unexpected places. A few weeks ago I was at the Las Cumbres Observatory (LCOGT) for a meeting to discuss ...
Scheduled Maintenance:
We are undertaking some essential, but extensive maintenance to improve Yahoo!
Calendar. Your Group Calendar is being migrated to a much improved version of
Yahoo! Calendar. During the maintenance period, you may not have access to your
Groups Calendar.
We sincerely apologize for this inconvenience. Your Groups Calendar is in great
shape and we are working to have it available again as quickly as possible
- Yahoo! Groups & Yahoo! Calendar Team
