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Author Topic: 160912 KZSB 2nd Monday TimC Hale telescope etc. CM, TW, TT, BM  (Read 2000 times)

TomT

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160912 KZSB 2nd Monday TimC Hale telescope etc. CM, TW, TT, BM
« on: October 01, 2016, 08:41:19 PM »

see attached audio file for cropped playback of show (incl a little pre-show talk)
160912 KZSB SBAU radio show notes (9am actual show start 11:18.377)
00:00.000  Baron talks w TomT; tells story of nice lady from Ventura in planetarium that he did not get a chance to talk to.
04:52.377  Earth Sky on star eating planet, B w TT
06:43.969  Donnie-car accident review "spit up?" TT-split? OOF?  TimC TomW ChuckMcP coming in
08:05.050  CM, TC in, BruceM on phone
09:14.560  TomW in
09:30.607  B-TW instructor at Westmont, admires Maureen at Dr. Spann, TW-TimC wants to talk about Hale telescope, BruceM was instructor EE at UCSB
11:18.377  1.  TT mentions Docent meeting at Museum, intros attendees, BruceM theater organ society program coming up.  Refugio outreach discussed.  B-Alpha Centauri?  CM-cannot see it from here.  Proxima small red dwarf.  Alpha means?  CM-term can be confusing, alpha should be brightest.  TimC Telescope workshop Tuesday evenings, TomW started 2003, JerryW also, TT takes photos.  Jurgen put together 13" telescope on a shoestring.  Amateur Telescope Makers are creative.  BM-MikeC using sonotube, cardboard tube.  B-grinding glass?  coat w/ aluminum back?  CM-front surface TC-1st surface. TW-instruct how to start a mirror thru testing, then aluminized somewhere.  Alcoat.net for a song.  10" about $50.  evaporation process. TC-the astrovaganza demonstrating mirror grinding, have to explain reflector vs refractor, used to be metal surfaces not glass.  Silver coating, CM-can be explosive!  TC-1st glass mirrors were silvered. BM-bath mirrors are silvered.
26:11.408  2.  music: up on the rooftop.  TimC roof was like bed of nails, steady binoculars with thumbs on eye sockets.  CM-prism used.  TT-what is advantage of using two eyes?  BM-more info to brain.  TT-light loss due to prism? CM-Yes, story of outhouse binoculars.  TimC- Hale telescopes 5800ft.  B-pickled okra in Julian.  TC-want to do a presentation on telescopes someday.  Another Hale on Mt. Wilson, cast from Champagne bottles.  Richie argued with Hale, so became a Cassegrain.  Hubble sat up in primary position.  1918 start thru WWII and dedicated in 1948.  TC-born 4 days earlier.  B-Hubble known for expansion of universe? CM-Yes.  TC-adaptive optics is latest improvement on telescopes.  TW-Sodium in atmosphere that laser hits, CM-from meteorites. 
35:48.477  3.  music: Bolero  B-occultating right now.  AU name history.  CM-bird eggs on front of museum with wings.  Dr. Whittemore, B-wants to hear conversations. TimC-telescope workshop, did Food Dud for Star B Q.  CM-Come to Cachuma Oct 29 w/o need to sleep over.  B-banks of empty lake.  B-save money making own telescope?  TimC-buy separate parts, grind own mirror, $230 with a coating.  CM-most precise thing made by hands.  TC-if I can do it, any one can.  TomW said surface is so fine, surface if one mile wide, bumps only 17 thousandths high.  TC-Hale 2/1,000,000s of an inch.  CM-making a bowl.  TC-walk around a barrel to randomize surface.  Controlled chaos, like dealing with kids.  TW-tumbling garnet in water.  TC-cerium oxide on pitch, like a tree sap.  Polish glass, smearing glass around.  B-only one at a time at the Museum? Broder.  Potluck at MacVeagh house...probably lived in by the MacVeagh's.
44.59.152  4.  2001 music.  intros...B-speakers?  TT-LCOGT Street, Greenstreet, Pluto.  B-occultation is an eclipse.  CM-occultations, small asteroid in front of a point source of star light.  IOTA.  TC-I know very little, these guys correct me all the time.  CM-you are wrong, you know a lot!  CM-1M miles ave distance btw asteroids.  B-Saturn rings? CM-very close. B-rings common?  CM-asteroid very had one.  BM-outer planets have rings CM-found by occulations also.  B-aluminum is used for coating mirrors?  BM-silver tarnishes, SiO coating aluminum.  TC-high vacuum chamber needed.  BM-Alcoat prices $75 for 10" mirror.  B-refracting? problems BM-glass bends various freq of light differently.  CM-refractors 2-300ft long.  TW-Newton solved problem with reflector.  B-Quartz crystals?  BM-Cadillac of mirrors.  TC-Hale telescope was going to be fused quartz, but went to Pyrex Corning NY.
54:07.968  5.  music: Thus Spach Zarathustra?  B-DQ commerc using this music  BM-1975 telescope.  B-bigger the better?  BM-mixed bag  CM-quality goes up by the square of size.  B-LCOGT?  1M telescopes CM-watch something continuously.  TimC Chuck does so much for outreaches and IOTA.  B-  TT-Westmont this Friday.
57:25.350  end
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