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No Stupid Questions@lemmy.ca · 8 months ago

Before radios were invented, have there always been radio waves floating everywhere in the air? Just waiting to be harnessed and used for a purpose?

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Before radios were invented, have there always been radio waves floating everywhere in the air? Just waiting to be harnessed and used for a purpose?

LemmyKnowsBest@lemmy.world to

No Stupid Questions@lemmy.ca · 8 months ago

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8 months ago
Light is an electromagnetic wave with our eyes being antennas tuned to the matching frequency.

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