The slippery tool bag is now several minutes ahead of the Shuttle and it is no longer possible to find it by looking a bit ahead of the Shuttle. Heavens-above...
My program guide shows that at 9:00p on the National Geographic Channel, they are repeating the episode of Worlds Toughest Fixes in which they clean and...
JANUARY 2009 "We will open the book. Its pages are blank. We are going to put words on them ourselves. The book is called Opportunity and its first chapter is...
Hello! Now is the time to mark your calendars and spread the word about our 2nd annual Swap-n-Sell event. Got some astronomical stuff (scopes, eyepieces,...
I have a Denver chair and the cost to build is around $20 to build and only needs basic hand tools and part of a day to build. The only change I made to the...
Yes, ?You are correct the talk starts at 8:00. There should be someone there around 7:00 to open the doors. You can get directions from the web site...
I plan to attend the public meeting of the Chippewa Valley Astronomical Society this coming Saturday, January 17th. I will inquire to confirm that the meeting...
Phil, I was going to get my mirror re-silvered. Do you or any of the club members know about these guys or have any other recommendations about who might do...
Paul Kinzer, author of Stargazing Basics: Getting Started in Recreational Astronomy, and a club member, will discuss the International Year of Astronomy. We...
Search cloudynights.com for coatings. Spectrum appears to have a good reputation. My 10" mirror was coated at L & L Optical, http://www.llopt.com/as.html. I...
Hi I have sent mirrors to spectrum higher in price but great work. They take longer than most in my case +30 days. I think his process is gentler on your...
Hi Steve, I said that I wasn't sure what type of coating alcoat.net is using. But reading their web site again, especially here: http://alcoat.net/al_2.htm...
why would you think so of clasusing? just curios Vacuum evaporative coating is the same proces regardless of who does it, or the exact material used. Joe...
Hi Joe The process is different at Spectrum coatings as I understand. The mirror is not heated from my understanding. In my case I had a Mak corrector lens...
never heard of any of them heating the mirrors. There is no reason to do so either. Been an ATM for since 1968, And this is the first i have ever heard of a...
*Hi, fellow sky watchers; The service JAN. 25 at the Unitarian Universalist Fellowship of La Crosse, will feature “ARCHEOASTRONOMY” * *by Dr. Susannah...
Hi The reason many sellers of flats retest the secondary is the coating process can distort the flatness of the mirrors by a small amount. The heat maybe...
It's not so much the heat, ( if any I'm still with the notion that there isn't any) but indeed the un evenness of the coating method, and sputtering is a...
Hi I will qualify the coating process Thermal Evaporation is a common coating process used in coating mirrors. Heat can be used for the reasons listed below...
Art and I visited Dave Whiteley Saturday afternoon to see his observatory and learn more about imaging. We then attended the Chippewa Valley Astro Society...
I think I misrepresented the subject of the CVAS February program. It is _International Year of Astronomy_ by Jim Fitzl. I was told it will include something...
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