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The predictions of a 17th-century scientist
- stipes 16y ago> ''The practicable and certain way of finding Longitudes'' - satellite navigation. We figured that out (for varying definitions of "practicable and certain") as early as the invention of the watch.
- RiderOfGiraffes 16y agoActually earlier - the Lunar method was reliably used by Cook and Shackleton. It was only on Cook's 2nd and 3rd voyages that he had K1, the first replica of H4 - Harrison's watch - that Cook referred to "My trusty friend, the watch."