Without expensive and difficult-to-maintain tracking systems, there is no way for flat panels to continuously face the sun.

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During the summer months, Antarctica -- the southern most tip of the globe -- is transformed into a bewitching "Land of the Midnight Sun, " where the sun never dips below the horizon, instead continuously moving in circles.

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Despite its arcane terminology, Scrum is the simplest idea under the sun: find out what customers really want and continuously deliver that to them sooner.

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