earth-inductor love


from The Century Dictionary.

  • noun In electricity, a coil of wire arranged so as to be capable of rotation in a magnetic field, and connected with a galvanometer by means of which the induced current of electricity can be measured. It is used for measuring the strength of magnetic fields as compared with that of the earth.


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  • It was 1927 before technology caught up with the prize, notably the development of the nine-cylinder, air-cooled Wright Whirlwind engine and the earth-inductor compass, the first providing more reliability and the second more accuracy than before.

    A Race Across the Pond Dan Ford 2011


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