Like a modern Viking, 32-year-old Nansen set sail from Norway in 1893 to reach the North Pole. Experts warned him that his voyage was tantamount to suicide. Compact and nimble, his ship the Fram was equiped with the latest tools to gather scientific data. As yet untested, the ship was specially built to withstand the relentless pressure of the polar ice cap. To complete the final leg, Nansen was to strike out into the polar desert by sledge. Nansen...