Suppose we set a small circle rolling around the interior of a large circle of twice its diameter. If we follow a point on the small circle, what pattern will it draw? Surprisingly, it will draw a straight line:


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#Are_you_smart_enough_to_work_at_Google - #William Poundstone - #Review

     This is a fun book of puzzles of all types; mathematical, logical, algorithmic with food for thought on estimation, mind games and crea...