Engines! by Donna McKinney

Engines! by Donna McKinney

Author:Donna McKinney
Language: eng
Format: epub
ISBN: 9700000000000
Publisher: Nomad Press


Take a look at this GIF to see how an electromagnet works to spin the rotor.

ELECTRIC MOTOR GIF

WORDS TO KNOW

blacksmith: a person who uses their hands to make objects out of iron or steel.

Their discoveries about magnets and electricity set the stage for how we use electricity today. In 1831, Joseph Henry helped create a powerful electromagnet that could lift 750 pounds. This was the first electrical machine ever made and is considered an early ancestor of the electric motor.

Across the ocean, Sturgeon built an electromagnet in 1832 that could lift 3,600 pounds. In 1831, Michael Faraday discovered electromagnetic induction when he moved a permanent magnet in and out of a coiled wire and created an electrical current. His experiments led to the invention of the electric motor and generator.



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