Gehrke

Decarburisation of pig iron in a Bessemer converter Gehrke

Portrait of Geerlig Grijpmoed Hermanus Fock

Otto von Guericke, German inventor, engineer and physicist, 1672 Unknown

First line Gurkhas storming and capturing a German trench, World War I Crown

Von Guericke's demonstration of the strength of a vacuum, 1654 (1672) Unknown

Portrait of Physicist Otto von Guericke Anonymous

Portrait of Heinrike Dannecker Christian Gottlieb Schick