In the 1850s Nobel lived in the U.S. & studied under John Ericsson, the builder of this first Union ironclad warship
In America he designed the US Navy's first screw-propelled 
steam-frigate ... An engine Ericsson constructed for Sir John Franklin's use failed 
under the .... Foreign member of the Royal Swedish Academy of Sciences in 
1850,... [DOC] [TLE] TO LEARN!!