Example image of eyePlorer eyePlorer map for 'Engine': Electric motor Fuel Machine Automobile Internal combustion engine Road roller Steam engine Steamroller Battering ram Catapult Military Siege engine Trebuchet Cotton gin Latin Old French Industrial Revolution Work (physics) Electricity Gas compressor Pump Torque Rocket Lever Mace (club) Oar Prehistory Simple machine Manual labour Water wheel Windmill Working animal Block and tackle Capstan (nautical) Mechanical advantage Pulley Rope Transmission (mechanics) Treadmill Windlass Ancient Greece Ancient Rome Crane (machine) Mining Ship Pliny the Elder Sextus Julius Frontinus Vitruvius Cattle Horse
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