Written: Written on April 18, 1921
Published: First published in 1932 in Lenin Miscellany XX. Printed from the original.
Source: Lenin Collected Works, Progress Publishers, 1976, Moscow, Volume 45, pages 126b-127a.
Translated: Yuri Sdobnikov
Transcription\Markup: R. Cymbala
Public Domain: Lenin Internet Archive You may freely copy, distribute, display and perform this work; as well as make derivative and commercial works. Please credit “Marxists Internet Archive” as your source.
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...A new photoelement has been invented which, coupled with
an amplifier valve, makes it possible at some distance (20–30 metres)
to record the emanation of radio (oscillation) energy. With the action
of this photoelement, an amplifying device directed at a (black or
white) object will throw its reflection on a screen with the aid of a
receiving radio station. With an improved instrument, the following results could be achieved: 1) with a radio telephone, a moving image of a speaking person could be seen on the screen; 2) an enemy squadron, moving hundreds of versts away, could be reflected on the screen.
... The invention has been made by a Russian engineer, Mikhail Alexandrovich Bonch-Bruyevich.
With comradely greetings,