Jean Alexander Heinrich Clapier de Colongue
Engineer, Deceased Person
1839 – 1901
Who was Jean Alexander Heinrich Clapier de Colongue?
Jean Alexander Heinrich Clapier de Colongue was a Baltic German marine engineer and founder of a theory of magnetic deviation for magnetic compasses, living and working in Imperial Russia.
Ivan Petrovich de Collong was born in 1839 in Dünaburg into a Baltic German noble family originally of Franco-Portuguese origin. He studied at the Naval Academy in Saint Petersburg and from 1870 he worked there as a lecturer. Starting in 1878 he was head of the Navy's Main Hydrographical Administration. In 1875 he constructed deflector and later improved upon its design.
De Collong was a Corresponding Member of the Russian Academy of Sciences and a Major-General of the Imperial Russian Navy. He was awarded the Lomonosov Prize of the Russian Academy of Sciences.
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