A version of this puzzle originally appeared in the October 1960 issue of Scientific American. What’s the Most Distant Galaxy ...
The Daily Overview on MSN
Check for a star mark on $20 bills before you deposit them
Most people slide $20 bills into an ATM without a second glance, but a tiny symbol on the serial number can quietly turn an ...
Angely Numbers on MSN
The Appalachian hex signs meant to protect homes from evil
High in the misty hills of Appalachia, where old forests stretch for miles and stories travel easily from one porch to another, symbols have always mattered. Long before modern locks and alarm systems ...
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