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The Serbian inventor Nikola Tesla is known as one of the fathers of electricity, the curious genius behind alternating current (AC), the victor in the so-called War of the Currents. But in this episode of The First, starting in the year 1893, Tesla begins conceiving an even grander scheme -- the usage of electromagnetic waves to distribute power.

Today we benefit from the electromagnetic spectrum in a variety of ways -- Wi-Fi, X-rays, radio, satellites. One of the roads to these inventions begins with Tesla and his experiments with remote control, using radio waves to operate a mechanical object.

But you may be surprised to discover Tesla's initial application of remote control. Far from inventing a children's toy, Tesla's remote controlled device would be used as a weapon of war.

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