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In the 1980s, global positioning via satellite was still in its infancy. Burlington Northern tested the technology on a freight line between Superior and Grand Rapids.
In the 1980s, global positioning via satellite was still in its infancy. Burlington Northern tested the technology on a freight line between Superior and Grand Rapids.
If you’ve ever used a flight-tracking app or looked up local weather on Weather Underground, you’ve likely accessed data supplied, in part, by