This football knows where it is on the field. Could it change the NFL?
When the NFL season kicks off this weekend, it’ll feature all sorts of high-tech innovations: instant replay and Surface tablets on the sidelines, overhead cameras and helmets with radios built in. Then, every so often, a pair of men will trot on to the field with a 10-yard-long metal chain to try to figure out if the offense got a first down — just like they did back in 1907.

September 4, 2014 at 4:30PM
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