How is wireless communication possible? [Science cookie x intellectual Minani]

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Finally, we have conducted 'half' of the electromagnetic wave series!
Today's electromagnetic wave is!
a thankful electromagnetic wave that has made a leap forward to human communication,
a story about 'radio wave'.
How did mankind think of using radio waves? Let's find out!
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Electricity creates a magnet, and a magnet makes electricity, both of which eventually become one; Professor Yu In-gwon