Answer to Puzzle Contest (from the winner):
THINKARBOREAL is one of the possible decoded messages when 905371918587513 is interpreted as a concatenation of the atomic numbers which represent corresponding symbols of the periodic table."
Here is an explanation that may make more sense to you, from David Fontes:
if broken up like so:
90 53 7 19 18 5 8 75 13
are the atomic numbers for the following elements
Th I N K Ar B O Re Al
or, "think arboreal," which leads me to believe that the chemist is thinking
Winner: Shivaji Marisarla
Contest Statistics: Newsletter sent to 294299 subscribers, 11 answers submitted, 9 answers correct, 81.82% accuracy. Chance of a correct answer winning: 11.11%.
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