Puzzled: Distances Between Points on the Plane

Seven-coloring of the plane. If the hexagons' sides are of length a bit less than 1/2, no two points at distance 1 will have the same color.

Peter Winkler

November 1, 2011

Welcome to three new puzzles. Solutions to the first two will be published next month; the third is as yet (famously) unsolved.

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Motivating Your Employees (Includes Simulation) - In this course, you will identify employee needs and use various strategies to help motivate employees as well as to promote self motivation. (Duration: 305 …

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