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forum.virtualchallengemeets.com • View topic - Cube Calendar

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Cube Calendar

What could be so hard. It's a multiple-choice test for Pete's sake.
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Cube Calendar

Postby AuSmith » Sat Aug 09, 2008 3:59 pm

John S. Singleton patented the two-cube calendar in 1957/8 in which [unparseable or potentially dangerous latex formula] digits were inscribed on the faces of two cubes. There were cards to display the month, and each day number [unparseable or potentially dangerous latex formula] was shown with the cubes. That is to say, in order to show the first day of the month, one cube has a [unparseable or potentially dangerous latex formula] and the other has a [unparseable or potentially dangerous latex formula]. What are the twelve digits on the two cubes?


From Martin Gardner's Scientific American column.
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