Readback: July 2021

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Only the Frequency Differs Answer 5 to the Quiz in February 2021 explains that “[f]iber-optic communication is light and not electromagnetic.” James Clerk Maxwell would disagree. Radio waves, light, and x-rays are all the same thing, just at different frequencies. (I don’t dispute that the light signal in the fiber-optical cable is unaffected by space […]
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