A hot and creamy problem

coffee and cream This is a really creamy problem, and it was one of  my favorites two decades ago! The Coffee Cooling Modeling Challenge explains it reasonably well for those who haven’t read about it in Martin Gardner’s collected puzzle book The 2nd Scientific American Book Of Mathematical Puzzles And Diversions (1961)!

To my knowledge, this puzzle was not republished in any other book of Martin Gardner, however I was a happy reader of it in a Romanian translation (Amuzamente matematice, Ed. Tehnică 1968; Alte amuzamente matematice, Ed. Tehnică 1970).
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February 28th, 2009 | Miscellaneous | 3 Comments | 355 views