RADIO

RADIO

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1895

Alexander Popov

The first russian man that created radio

1901

Gulelmo Markoni

Italian improve the radio

1902

Permission for commercial use

2024

We use it just in cars and some old phones as Nokia

01

Creation of radio

Creation

Alexandr Popov

On May 7, 1895, Alexander Popov gave a lecture at St. Petersburg University:"On the relation of metal powders to electrical vibrations" and demonstrated the very revolutionary device that could transmit signals wirelessly. This day became the birthday of the radio.

"One two three four. Is it snowing where you are, Mr. Thiessen? If it works, edit the telegram and let me know."

02

The development of radio

The development of radio .The next important step in the development of radio was the discovery of electromagnetic waves by the Russian scientist A.S. Popov in 1895. He created a device for recording electromagnetic vibrations, which he called a "lightning detector". This is a device It was the first device for receiving radio signals, which was used to register atmospheric discharges. However, the current development of radio communication It began after in 1901 Italian Guglielmo Marconi improved the lightning detector Popov created the first device for transmission of radio signals over a distance. In 1902, he received a patent for his in- vention and began the commercial use of radio for communication between Eng- land and France.

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03

Using the radio now

Using the radio now

For example, radiowaves are used for radio control, radio navigation, determining the location of objects in space, which is widely used in the military and industrial spheres. A transmitter and receiver are required to transmit any information over a distance

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Alexandr Popov

that created the radio

vs

Guglielmo Marconi

that created the radio

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