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  1. Radio — 2020-08-09 19:56:54
    …aves had a long history with many scientists contributing. == 1864 == James Clerk Maxwell showed mathematically that electromagnetic waves could propagate through free space. == 1886 == Heinrich Rudolf Hertz noticed a sparking phenomenon and with expe…
    …riments (1887-1888) was able to demonstrate the existence of electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism. This discovery became known as "Hertzian waves…
  2. Electric Generator — 2017-05-25 11:18:24
    …, he began his great series of experiments in which he discovered electromagnetic induction. These experiments form the basis of modern electromagnetic technology. == Induction == {{image url="First_…
    …motor.png" class="left" width="200" }} In 1821 Faraday creates two experiments for the demonstration of electromagnetic rotation. A vertically suspended wire moves in a circular orbit around a magnet. The Homopolar motor. In 1831, using h…
    …is "induction ring", Michael Faraday made one of his greatest discoveries - electromagnetic induction: the "induction" or generation of electricity in a wire by means of the electromagnetic effect of a current i…
    … class="left" title="Faraday Disk Generator" width="" }} In 1831 Michael Faraday discovered the operating principle of electromagnetic generators. The horseshoe-shaped magnet (A) created a magnetic field through the disk (D). When the disk was turned th…

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