He was awarded a degree in mining engineering in 1848 and for the next four years he worked at the Kongsberg silver mines. Silver was mined at Kongsberg, in southeastern Norway, from the early 17th century until the mid-20th century.
Siya ay iginawad ng isang degree sa pagmimina engineering sa 1848 at sa susunod na apat na taon na siya ay nagtrabaho sa Kongsberg pilak mine. Silver ay mina sa Kongsberg, sa dakong timog-silangan Norway, mula sa maagang bahagi ng ika-17 siglo hanggang sa kalagitnaan ng ika-20 siglo.