death_date nationality ethnicity birth_date known_for article_title name alma_mater
29 may 1872 british british 21 september 1796 improvements to steam engines in cornish mines john samuel enys
 john samuel enys winchester college , exeter college , oxford
john samuel enys

john samuel enys -lrb- 21 september 1796 -- 29 may 1872 -rrb- was a british mining engineer and scientist who wrote several important papers on the `` duty '' of steam engines and other types of power delivery , from water wheels to horses .
he also made numerous studies on the extensive mining industry in cornwall .
on the death of his great uncle , francis enys in 1821 he inherited the enys estate , near penryn , cornwall and was appointed high sheriff of cornwall in 1824 .
