Science Memes

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Frequency Rule (feddit.de)

submitted 2 years ago by [email protected] to c/[email protected]

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[–] [email protected] 27 points 2 years ago (15 children)

The magnets spinning at that speed creates a frequency which can interfere with other radio signals.

[–] [email protected] -1 points 2 years ago (12 children)

Does it tho? It's basically an electric generator

[–] [email protected] 16 points 2 years ago (10 children)

It wouldn't produce anything. For magnets to induce electricity they require a conductor and air isn't one, at least not a good enough one. Without electrical current, there's no voltage, nor constant or oscillating kind of current and therefore no radio frequencies. An electronic crystal and a handful of components could.

[–] [email protected] 4 points 2 years ago (1 children)

Electricity isn't the same as electromagnetic radiation. A varying magnetic field induces a varying electric field which radiates into space as an EM wave. See Maxwell's equations.

[–] [email protected] 0 points 2 years ago

Please describe "as if I'm 5yo" how a radio broadcasting antenna works? Thanks! =)

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