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single , sin·gle / ˈsinggəl/ • adj. 1. only one; not one of several: a single red rose | the kingdom was ruled over by a single family. ∎ regarded separately… Charles Steinmetz , engineering.
Steinmetz’ given name was Karl August Rudolf. He was the only son of Karl Heinrich Steinmetz, a government railway employee, and his fir… Locomotive , locomotive, vehicle used to pull a train of unpowered railroad cars.
Types of Locomotives
The steam-powered locomotive played a key role during the d… Electric catfish , electric catfish (Malapterurus electricus) See MALAPTERURIDAE.
Malapterurus electricus (electric catfish) See MALAPTERURIDAE. Frank J. Sprague , Frank Julian Sprague (1857-1934), American electrical engineer and inventor, successfully used electricity to power vehicles and is known today as th… Electrical Engineering , engineering, profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.…
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