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LARGER THAN LIFE: Each of the two 49- by 22-meter screens suspended above the football field at the brand new Cowboys Stadium in Arlington, Texas, comprises more than 10.5 million LEDs that together draw 635 kilowatts. Because there are four LEDs (two red, one blue, and one green) in each pixel, the 2176-by-4864 arrays provide the same image resolution as your 1080p hi-def TV at home—but the players running across your screen are probably not seven stories tall. <