Astronomy in Hawaii under threat?

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Astronomy in Hawaii under threat?

randomq Offline

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Hawaiian Acres

Posts: 3,196
Threads: 108
Joined: Jun 2010

#134

07-16-2022, 06:14 PM

Actually the material a lense is made of is very important, for its refractive index. A lense with a neutral (near 1) refractive index doesn't do much. The atmosphere is very close to 1, as is the vacuum of space.

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Astronomy in Hawaii under threat? - by TomK - 04-07-2022, 06:16 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-07-2022, 06:50 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 04-07-2022, 07:27 AM

RE: Astronomy in Hawaii under threat? - by TomK - 04-07-2022, 07:41 AM

RE: Astronomy in Hawaii under threat? - by ChunksterK - 04-07-2022, 04:30 PM

RE: Astronomy in Hawaii under threat? - by MyManao - 04-08-2022, 05:18 PM

RE: Astronomy in Hawaii under threat? - by TomK - 04-09-2022, 09:21 AM

RE: Astronomy in Hawaii under threat? - by MyManao - 04-10-2022, 03:31 PM

RE: Astronomy in Hawaii under threat? - by TomK - 04-11-2022, 05:37 AM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-08-2022, 06:43 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-08-2022, 07:03 PM

RE: Astronomy in Hawaii under threat? - by MyManao - 04-08-2022, 07:58 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-08-2022, 08:11 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-09-2022, 01:17 AM

RE: Astronomy in Hawaii under threat? - by TomK - 04-09-2022, 05:04 AM

RE: Astronomy in Hawaii under threat? - by randomq - 04-09-2022, 06:47 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 04-09-2022, 07:14 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-09-2022, 10:15 PM

RE: Astronomy in Hawaii under threat? - by kalianna - 04-09-2022, 10:41 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-09-2022, 11:52 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 04-10-2022, 12:22 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 04-10-2022, 04:13 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-10-2022, 04:34 AM

RE: Astronomy in Hawaii under threat? - by TomK - 04-10-2022, 06:48 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 04-10-2022, 08:55 AM

RE: Astronomy in Hawaii under threat? - by randomq - 04-10-2022, 10:56 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-11-2022, 05:46 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-12-2022, 12:11 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-12-2022, 12:24 AM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-12-2022, 12:42 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-12-2022, 01:00 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 04-12-2022, 01:24 AM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-12-2022, 01:56 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-12-2022, 02:09 AM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-12-2022, 02:15 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 04-12-2022, 03:19 AM

RE: Astronomy in Hawaii under threat? - by TomK - 04-12-2022, 07:17 AM

RE: Astronomy in Hawaii under threat? - by MyManao - 04-12-2022, 07:02 PM

RE: Astronomy in Hawaii under threat? - by TomK - 04-13-2022, 05:31 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 04-12-2022, 04:49 PM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 04-12-2022, 08:18 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-12-2022, 08:25 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-12-2022, 10:42 PM

RE: Astronomy in Hawaii under threat? - by TomK - 04-16-2022, 08:36 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-17-2022, 02:00 AM

RE: Astronomy in Hawaii under threat? - by TomK - 04-25-2022, 07:45 AM

RE: Astronomy in Hawaii under threat? - by randomq - 04-26-2022, 12:59 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 04-26-2022, 01:31 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-29-2022, 09:09 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 04-30-2022, 01:51 AM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 04-30-2022, 03:15 AM

RE: Astronomy in Hawaii under threat? - by Obie - 04-30-2022, 05:36 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 04-30-2022, 07:09 AM

RE: Astronomy in Hawaii under threat? - by TomK - 04-30-2022, 07:21 AM

RE: Astronomy in Hawaii under threat? - by Durian Fiend - 05-01-2022, 12:51 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-01-2022, 06:45 AM

RE: Astronomy in Hawaii under threat? - by SBH - 05-04-2022, 09:09 PM

RE: Astronomy in Hawaii under threat? - by TomK - 05-05-2022, 05:54 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-06-2022, 06:17 AM

RE: Astronomy in Hawaii under threat? - by Durian Fiend - 05-10-2022, 04:51 PM

RE: Astronomy in Hawaii under threat? - by TomK - 05-07-2022, 06:11 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 05-07-2022, 06:54 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-07-2022, 07:15 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 05-07-2022, 07:53 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-07-2022, 08:24 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 05-07-2022, 09:33 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-07-2022, 09:46 AM

RE: Astronomy in Hawaii under threat? - by AaronM - 05-07-2022, 09:59 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-07-2022, 10:07 AM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-07-2022, 02:56 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 05-08-2022, 02:30 AM

RE: Astronomy in Hawaii under threat? - by Obie - 05-08-2022, 03:34 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-08-2022, 04:06 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-08-2022, 06:23 AM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-08-2022, 03:30 PM

RE: Astronomy in Hawaii under threat? - by TomK - 05-09-2022, 01:06 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 05-10-2022, 08:07 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-10-2022, 08:23 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-10-2022, 09:00 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-10-2022, 09:03 PM

RE: Astronomy in Hawaii under threat? - by Durian Fiend - 05-11-2022, 10:09 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-10-2022, 09:07 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-10-2022, 09:26 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-10-2022, 09:33 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-10-2022, 09:52 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-10-2022, 10:02 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-10-2022, 10:08 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-10-2022, 10:11 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-10-2022, 10:41 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-10-2022, 11:09 PM

RE: Astronomy in Hawaii under threat? - by TomK - 05-11-2022, 11:33 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 05-11-2022, 10:27 PM

RE: Astronomy in Hawaii under threat? - by kalianna - 05-12-2022, 02:28 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 05-12-2022, 04:06 AM

RE: Astronomy in Hawaii under threat? - by randomq - 05-12-2022, 06:31 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 05-12-2022, 06:42 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 05-12-2022, 06:43 AM

RE: Astronomy in Hawaii under threat? - by randomq - 05-12-2022, 03:32 PM

RE: Astronomy in Hawaii under threat? - by kalianna - 05-12-2022, 07:58 PM

RE: Astronomy in Hawaii under threat? - by randomq - 05-12-2022, 09:26 PM

RE: Astronomy in Hawaii under threat? - by HawaiiEV - 05-12-2022, 09:59 PM

RE: Astronomy in Hawaii under threat? - by TomK - 05-17-2022, 09:08 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-19-2022, 07:38 AM

RE: Astronomy in Hawaii under threat? - by TomK - 05-28-2022, 10:24 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 05-29-2022, 08:02 AM

RE: Astronomy in Hawaii under threat? - by Durian Fiend - 05-29-2022, 06:48 PM

RE: Astronomy in Hawaii under threat? - by TomK - 06-25-2022, 07:21 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 06-25-2022, 07:48 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 06-26-2022, 03:39 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 06-28-2022, 05:47 PM

RE: Astronomy in Hawaii under threat? - by Obie - 06-28-2022, 07:11 PM

RE: Astronomy in Hawaii under threat? - by TomK - 06-30-2022, 06:43 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 06-30-2022, 05:28 PM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-01-2022, 02:12 AM

RE: Astronomy in Hawaii under threat? - by TomK - 07-09-2022, 09:50 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-10-2022, 03:27 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 07-10-2022, 04:41 AM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-10-2022, 05:53 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 07-10-2022, 06:41 PM

RE: Astronomy in Hawaii under threat? - by MyManao - 07-11-2022, 05:12 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 07-11-2022, 06:11 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-11-2022, 09:42 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-11-2022, 11:05 PM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-12-2022, 05:15 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-12-2022, 07:55 PM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-12-2022, 09:59 PM

RE: Astronomy in Hawaii under threat? - by kalianna - 07-13-2022, 12:25 AM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-13-2022, 04:45 AM

RE: Astronomy in Hawaii under threat? - by TomK - 07-16-2022, 11:03 AM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-16-2022, 12:17 PM

RE: Astronomy in Hawaii under threat? - by TomK - 07-16-2022, 01:17 PM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-16-2022, 04:39 PM

RE: Astronomy in Hawaii under threat? - by MyManao - 07-16-2022, 07:42 PM

RE: Astronomy in Hawaii under threat? - by TomK - 07-17-2022, 10:41 AM

RE: Astronomy in Hawaii under threat? - by TomK - 07-17-2022, 08:32 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-16-2022, 04:33 PM

RE: Astronomy in Hawaii under threat? - by randomq - 07-16-2022, 06:14 PM

RE: Astronomy in Hawaii under threat? - by Space Karen - 07-18-2022, 03:06 AM

RE: Astronomy in Hawaii under threat? - by AaronM - 07-16-2022, 09:52 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-18-2022, 12:56 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-22-2022, 09:50 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 07-23-2022, 12:25 PM

RE: Astronomy in Hawaii under threat? - by ChunksterK - 07-23-2022, 04:36 PM

RE: Astronomy in Hawaii under threat? - by TomK - 07-24-2022, 08:09 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 07-25-2022, 06:24 AM

RE: Astronomy in Hawaii under threat? - by TomK - 07-25-2022, 09:41 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 07-31-2022, 10:29 PM

RE: Astronomy in Hawaii under threat? - by randomq - 08-01-2022, 09:02 AM

RE: Astronomy in Hawaii under threat? - by Space Karen - 08-02-2022, 09:23 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 08-02-2022, 09:35 AM

RE: Astronomy in Hawaii under threat? - by kalianna - 08-02-2022, 10:58 AM

RE: Astronomy in Hawaii under threat? - by AaronM - 08-02-2022, 05:38 PM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 08-05-2022, 09:51 PM

RE: Astronomy in Hawaii under threat? - by TomK - 08-08-2022, 08:07 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 08-08-2022, 10:07 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 08-08-2022, 05:08 PM

RE: Astronomy in Hawaii under threat? - by Space Karen - 08-10-2022, 02:17 AM

RE: Astronomy in Hawaii under threat? - by TomK - 08-10-2022, 08:02 AM

RE: Astronomy in Hawaii under threat? - by HereOnThePrimalEdge - 08-10-2022, 02:30 AM

RE: Astronomy in Hawaii under threat? - by Space Karen - 08-10-2022, 04:07 AM

RE: Astronomy in Hawaii under threat? - by TomK - 08-12-2022, 09:00 AM

RE: Astronomy in Hawaii under threat? - by oink - 08-12-2022, 04:15 PM

RE: Astronomy in Hawaii under threat? - by kalianna - 08-12-2022, 09:04 PM

RE: Astronomy in Hawaii under threat? - by TomK - 08-13-2022, 10:39 AM

RE: Astronomy in Hawaii under threat? - by Punaperson - 08-12-2022, 11:31 PM

RE: Astronomy in Hawaii under threat? - by SBH - 08-14-2022, 05:32 PM

RE: Astronomy in Hawaii under threat? - by oink - 08-15-2022, 02:16 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 08-15-2022, 08:08 AM

RE: Astronomy in Hawaii under threat? - by TomK - 08-15-2022, 08:39 AM

RE: Astronomy in Hawaii under threat? - by 'elepaio - 08-15-2022, 08:52 AM

RE: Astronomy in Hawaii under threat? - by TomK - 08-15-2022, 08:59 AM

RE: Astronomy in Hawaii under threat? - by TomK - 09-13-2022, 07:45 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 09-13-2022, 01:28 PM

RE: Astronomy in Hawaii under threat? - by randomq - 09-13-2022, 11:14 PM

RE: Astronomy in Hawaii under threat? - by TomK - 09-14-2022, 10:13 AM

RE: Astronomy in Hawaii under threat? - by TomK - 09-19-2022, 07:07 AM

RE: Astronomy in Hawaii under threat? - by TomK - 11-23-2022, 07:42 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 11-23-2022, 02:26 PM

RE: Astronomy in Hawaii under threat? - by AaronM - 11-23-2022, 06:32 PM

RE: Astronomy in Hawaii under threat? - by kalakoa - 11-23-2022, 09:20 PM

RE: Astronomy in Hawaii under threat? - by AaronM - 11-23-2022, 10:44 PM

RE: Astronomy in Hawaii under threat? - by kalianna - 11-23-2022, 10:51 PM

RE: Astronomy in Hawaii under threat? - by TomK - 11-24-2022, 10:03 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 11-24-2022, 03:53 PM

RE: Astronomy in Hawaii under threat? - by AaronS - 11-24-2022, 09:09 PM

RE: Astronomy in Hawaii under threat? - by TomK - 11-25-2022, 06:27 AM

RE: Astronomy in Hawaii under threat? - by AaronM - 11-27-2022, 07:50 AM

RE: Astronomy in Hawaii under threat? - by kalakoa - 11-27-2022, 04:59 PM

RE: Astronomy in Hawaii under threat? - by TomK - 03-17-2023, 06:13 AM

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