peek at solution solve puzzle
version: 3 quality: difficulty:
solvability: line & color logic only
Puzzle Description:
Helium, four times lighter than oxygen.
#1: Web Paint-By-Number Robot (webpbn) on Sep 28, 2013
New version published by katherineb.#2: Web Paint-By-Number Robot (webpbn) on Sep 28, 2013
New version published by katherineb.#3: Susan Nagy (SusanNagy54) on Sep 28, 2013
Nice.#4: Brian Bellis (mootpoint) on Sep 29, 2013 [SPOILER]
I thought electrons were blue.#5: Kim (kjh) on Sep 29, 2013
that was annoying#6: Carol Brand (KarylAnn) on Sep 29, 2013 [SPOILER]
The U.S. Congress just passed a bill to to stop an impending shutdown of the federal helium reserve. Here's an interesting article on the Helium shortage:#7: annalivia (annalivia) on Sep 29, 2013
http://www.nbcnews.com/science/world-helium-shortage-expected-balloon-drastically-6C10963426
very nice!#8: Norma Dee (norm0908) on Sep 29, 2013
A really cut little puzzle.#9: Tom O'Connell (sensei69) on Sep 30, 2013
guess I should stop talking that way anyhow ;/#10: Joe (infrapinklizzard) on Sep 30, 2013 [SPOILER]
What will Helium-Crisis Elmo sound like?!?
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