eli5: Frequencies and radios

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I don’t really understand what it means when radios “tap into” certain frequencies and how they are transmitted.

In: Physics

3 Answers

Anonymous 0 Comments

If you’ve ever tuned guitar strings to one another, you’ve seen that when the tuning is perfect, playing a note on one string will make the other string tuned to the same note vibrate as well. Tuning a radio does the same thing, only with electricity vibrating inside a circuit. Even if there’s a cacophony of radio waves coming in, the “string” will only respond to a single tone in all that noise.

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