He started a mechanical workshop which provided equipment for the Russian army and he also convinced the Tsar and his generals that naval mines could be used to block enemy naval ships from threatening the city.
By the time of his death in he had patents. The couple had eight children, of whom only Alfred and three brothers reached adulthood.
Since the deciding bodies he had chosen were more concerned with the former, the prizes went to scientists more often than engineers, technicians or other inventors.
Nils Ringertz was a member of the Royal Swedish Academy of Sciences and served with a number of international scientific organizations.
A painting of Immanuel Nobel demonstrating his naval or sea mines to the Tsar of Russia. They became successful and went on to develop the oil industry in the southern part of Russia.
Petersburg during the Crimean war Start your free trial today for unlimited access to Britannica.