Siebren van der Werf

Siebren van der Werf (b. 1942) is a retired physicist who worked for the Centre for Nuclear-Physics Research at the University of Groningen.

Photo: Jeroen Koeten

He is also a historian of navigation, specialising in the early history of sea-navigation and the progression of navigation techniques. Using computer simulations of fata morganas and distorted sunsets, he studies the refraction of light in the atmosphere. Three Thousand Years of Navigation by the Stars - Myth-making and History is an original history of celestial navigation around the world. Previously, he wrote The Nova Zembla Effect, on mirages.

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