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John Baird's mechanical television transmitter, in the London Science Museum

90 years since the first television broadcast by John Logie Baird

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The video signal from the television receiver (on the left) is transmitted to the neon lamp and causes its brightness to change according to the needs of the image at each point. This system produced a dim orange image, 1.5 inches (about 4 centimeters) in diameter.

The mother of the television - 90 years since the first experiment of the mechanical television

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Microscopy (AFM) image showing a conducting supramolecular fiber composed of several short fibers. Each point is a separate molecule (the height of the image fiber is 50 nanometers).

The smallest radio in the world / Ed Regis

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lightning

The effect of lightning on radio reception and its safety - an article from 1936

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Fast graphene transistor. Illustration: IBM

A world record in graphene-based transistors

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Leon Termin plays the instrument named after him

Radio and electronics in the Land of Israel in the twenties

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To find two channels that have no overlap between them, you have to "jump" five channels

Broadcast and let broadcast

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Excerpt from the logo of the science site. PR photo

Open source satellite

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Excerpt from the logo of the science site. PR photo

Stealth antenna

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Excerpt from the logo of the science site. PR photo

Discovery: Researchers from the Hebrew University discovered that human skin behaves like tiny antennas

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Excerpt from the logo of the science site. PR photo

Even medical pacemakers are vulnerable to hacking

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