Longitude clock stuns experts for accuracy 300 years after design | http://j.mp/1aKlcTJ http://j.mp/1aKlbz3

Longitude clock stuns experts for accuracy 300 years after design | http://j.mp/1aKlcTJ http://j.mp/1aKlbz3:

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April 20, 2015 at 02:08PM