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Comments on Puzzle #21490: Climb the ladder
By Brian Bellis (mootpoint)

peek at solution       solve puzzle
  quality:   difficulty:   solvability: line & color logic only  

Puzzle Description:

to enjoy the stars through my club's 20" diameter telescope. I wouldn't be surprised if tens of thousands of people throughout the scopes lifetime have climbed the ladder to take a look.

#1: Norma Dee (norm0908) on Mar 26, 2013

Fun solve. I know I would if I could.
#2: Aldege Cholette (aldege) on Mar 26, 2013
Cool image Brian.:)
#3: valerie o..travis (bigblue) on Mar 26, 2013
ditto #1 & 2 :)
#4: Teresa K (fasstar) on Apr 3, 2013 [SPOILER]
Oh there ya are. A 20" lens? How cool is that! What's your favorite view?
#5: Brian Bellis (mootpoint) on Apr 3, 2013 [SPOILER]
There might be a few lenses that big but most big telescopes uses a parabolic mirror as the "primary". It is much cheaper to grind and avoids the problems associated with a large lens. I do love the look of images through a really good refractor (lens) telescope.
#6: BlackCat (BlackCat) on May 3, 2018
Tough to see but great idea.

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