#engineer__applied_scientist__appliedscientist__technologist  a person who uses scientific knowledge to solve practical problems
  supertype:  #person__individual__someone__somebody__mortal__human__human_being__humanbeing__soul  a human being; "there was too much for one person to do"
  instance:  #Gottlieb_Daimler  #Rudolf_Christian_Karl_Diesel  #Bryan_Donkin  #Alexandre_Gustave_Eiffel  #George_Washington_Goethals  #Hugo_Junkers  #Charles_Franklin_Kettering  #Leonardo_da_Vinci  #John_Augustus_Roebling  #Claude_Elwood_Shannon  #Sir_Charles_William_Siemens  #Elmer_Ambrose_Sperry  #Richard_Trevithick  #Thomas_Augustus_Watson  #James_Watt
  subtype:  #aeronautical_engineer  an engineer concerned with the design and construction of aircraft
     instance:  #Reginald_Joseph_Mitchell__Mitchell__R._J._Mitchell
  subtype:  #aerospace_engineer__aerospaceengineer  an engineer of aircraft and space vehicles
  subtype:  #army_engineer__military_engineer  a member of the military who is trained in engineering and construction work
     subtype:  #sapper  a military engineer who does sapping (digging trenches or undermining fortifications)
     subtype:  #sapper.army_engineer  a military engineer who lays or detects and disarms mines
  subtype:  #automotive_engineer  an engineer concerned with the design and construction of automobiles
  subtype:  #civil_engineer__civilengineer  an engineer trained to design and construct and maintain public works (roads or bridges or harbors etc.)
     subtype:  #highway_engineer__highwayengineer  a civil engineer who specializes in the design and construction of roads and highways
     instance:  #David_Barnard_Steinman__Steinman
  subtype:  #electrical_engineer  a person trained in practical applications of the theory of electricity
     instance:  #Vannevar_Bush__Bush  #Lee_De_Forest__De_Forest__The_Father_of_Radio  #Ray_M._Dolby__Dolby  #Oliver_Heaviside__Heaviside  #Arthur_Edwin_Kennelly__Kennelly__A._E._Kennelly  #Guglielmo_Marconi__Marconi  #Ernst_Werner_von_Siemens__Siemens  #Sir_Clive_Marles_Sinclair__Sinclair__Clive_Sinclair  #Charles_Proteus_Steinmetz__Steinmetz  #Nikola_Tesla__Tesla  #Elihu_Thomson__Thomson
  subtype:  #marine_engineer__naval_engineer__navalengineer  an officer responsible for the operation and maintenance of the ship's engines
  subtype:  #mechanical_engineer  a person trained to design and construct machines
     subtype:  #tribologist  a specialist in tribology
  subtype:  #metallurgist__metallurgical_engineer__metallurgicalengineer  an engineer trained in the extraction and refining and alloying and fabrication of metals
     instance:  #Sir_Henry_Bessemer__Bessemer
  subtype:  #mining_engineer  an engineer concerned with the construction and operation of mines
  subtype:  #computer_programmer__programmer__coder__softwareengineer  a person who designs and writes and tests computer programs
     subtype:  #hacker.computer_programmer  a programmer for whom computing is its own reward; may enjoy the challenge of breaking into other computers
  subtype:  #rocket_engineer__rocket_scientist  an engineer who builds and tests rockets
     instance:  #Wernher_Magnus_Maximilian_von_Braun__Braun__von_Braun__Wernher_von_Braun
  subtype:  #surveyor  an engineer who determines the boundaries and elevations of land or structures
     subtype:  #lineman.surveyor  the surveyor who marks positions with a range pole
     subtype:  #locator__locater  a person who fixes the boundaries of land claims

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