Cropland Capture's developers hope players will find where crops are grown amid Earth's natural vegetation in satellite images to shine a light on where humanity grows its food. Courtesy of the International Institute for Applied Systems Analysis hide caption

toggle caption Courtesy of the International Institute for Applied Systems Analysis

Apps that can keep kids entertained during long road trips include (from left) Waze, Story Dice, Mobbles, Cobypic, and Postcard on the Run. NPR hide caption

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For Holiday Road Trips, Apps That Promise Diversions For Kids

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