Behind the great polar explorers of the early twentieth century - Amundsen, Shackleton, Scott in the South and Peary in the North - looms the spirit of Fridtjof Nansen (1861-1930), the mentor of them all.
He was the father of modern polar exploration, the last act of territorial discovery before the leap into space began.
Nansen was a prime illustration of Carlyle's dictum that 'the history of the world is but the biography of great men'.
He was not merely a pioneer in the wildly diverse fiel.
