Difference between revisions of "Talk:1791: Telescopes: Refractor vs Reflector"

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Aren't there Space Vampires in Lovecraft somewhere? [[Special:Contributions/162.158.214.34|162.158.214.34]] 22:48, 27 January 2017 (UTC)
 
Aren't there Space Vampires in Lovecraft somewhere? [[Special:Contributions/162.158.214.34|162.158.214.34]] 22:48, 27 January 2017 (UTC)
  
An important advantage of refractors that keeps them popular is the very tiny amount of internal scattered light compared to reflectors. This really stands out when viewing planets and bright objects. Everybody loves that velvety black background field that refractors can provide.
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An important advantage of refractors that keeps them popular is the very tiny amount of internal scattered light compared to reflectors. This really stands out when viewing planets and bright objects. Everybody loves that velvety black background field that refractors can provide. [[User:ExternalMonolog|ExternalMonolog]] ([[User talk:ExternalMonolog|talk]]) 09:59, 28 January 2017 (UTC)

Revision as of 09:59, 28 January 2017

Nitpick: The refracting telescope, drawn correctly, has a mirror in the optical path (image inverter), but it is made with a special vampire reflecting material Ichorium.

Doesn't the one in this image have a mirror too? at the bottom to make the image come out at the side instead of the end? 162.158.89.187

That's a good point: as drawn, the refracting telescope still has a mirror and also wouldn't be able to see space vampires. However, the refracting telescope doesn't have to have a secondary mirror, and there are plenty that don't, so it is more the drawing that is wrong rather than the text of the comic.Cmancone (talk) 14:31, 27 January 2017 (UTC)

Typically refractors use a prism rather than a mirror at the end, though it does the same thing. Can vampires be seen in a prism? 108.162.241.172 14:50, 27 January 2017 (UTC)

Only if they're pink. 162.158.74.219 14:57, 27 January 2017 (UTC)

Every time I press submit, it blocks me and makes me start over. Kynde, rather than making a small change every 30 seconds, perhaps you could do them all at once? -- Frankie (talk) 15:26, 27 January 2017 (UTC)

Well I'm sorry, I had the same problem as you. So I did not dare read it all through before I submitted, and thus so tried to fix the errors I found afterwards. That was also why I did not make the section for the real problems a subsection to the explanation so it (as the transcript) could be edited without conflicting with the other sections. --Kynde (talk) 15:30, 27 January 2017 (UTC)
Ah, it's network congestion. Sending small packets more quickly is indeed one way to get your message through, but it can lead to a tragedy of the commons. Everyone switching to larger packets is the optimal answer, but it's not a stable equilibrium. -- Frankie (talk) 15:39, 27 January 2017 (UTC)

Does anybody on the wiki HAVE a major in optics???? At least anybody who will see this page before MONDAY, when it will no longer be the latest??? That's right, Jacky720 just signed this (talk | contribs) 15:54, 27 January 2017 (UTC)

A telescope mirror typically would have no chromatic aberration, as it's a front-surface mirror. The light doesn't pass through the glass to get to the reflective material; the glass is on the back of the mirror for support. 162.158.62.129 16:15, 27 January 2017 (UTC)

I think where the commentary says "This means most reflector telescopes make do with narrow apertures" it should be "refractor telescopes". Rtanenbaum (talk) 16:18, 27 January 2017 (UTC)

FYI: Randall updated the comic, so that the refracting telescope doesn't have a mirror.--162.158.74.111 16:59, 27 January 2017 (UTC)

I would think that the main reason for Refractors over Reflectors is that it would be easier to make one with adjustable focus, so you would not need to wear glasses and – more importantly – you might be able to use the telescope as a binocular for things like birds. I don't know of any Reflectors with a significant adjustable focus, but I'm not an astronomer either. 172.68.51.28 17:31, 27 January 2017 (UTC)

Aren't there Space Vampires in Lovecraft somewhere? 162.158.214.34 22:48, 27 January 2017 (UTC)

An important advantage of refractors that keeps them popular is the very tiny amount of internal scattered light compared to reflectors. This really stands out when viewing planets and bright objects. Everybody loves that velvety black background field that refractors can provide. ExternalMonolog (talk) 09:59, 28 January 2017 (UTC)