Talk:1791: Telescopes: Refractor vs Reflector

Explain xkcd: It's 'cause you're dumb.
Revision as of 14:26, 27 January 2017 by 162.158.89.187 (talk)
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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