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Ericsson, John (1803–1889)
Swedish-born American engineer and inventor who developed the screw propeller (patented 1836). He designed and built The Monitor (1862), the first warship to bear an armored revolving gun turret. Later he pioneered researches into tapping solar energy for power.
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• ENGINEERS AND INVENTORSAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History