Friday, April 21, 2017

IMAGINARY NUMBERS SAVE LIVES AT SEA!


 Paul Halmos in his article "Innovation in Mathematics" from Scientific American Magazine,  September 1958...

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The Great Lake Huron Rock Puzzle

  As a boy, I found this chunk of limestone on the shoreline of southern Lake Huron, Canada near the town of Goderich: The rock is 23 cm (9...