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نحن لا نرسل البريد العشوائي! اقرأ سياسة الخصوصية الخاصة بنا لمزيد من المعلومات.

This article was published in Nature on June 18, 1908. The article discusses the idea of achieving distant electric vision and presents a proposal to solve this problem. The author indicates that part of this issue can be addressed by using two beams of cathode rays (one at the transmission station and the other at the reception station) that are moved synchronously by varying fields from electromagnets positioned at right angles to each other and fed by alternating electrical currents at widely different frequencies, so that the tips of the moving beams are moved synchronously on all required surfaces in the time needed to utilize visual continuity.

The Real Problems

The real problems lie in designing an effective transmission device that changes sufficiently under the influence of light and shadow to generate the necessary variations in the intensity of the cathode ray for the receiver, as well as making this transmission device fast enough to respond to the 160,000 changes per second that are considered the minimum required.

Future Expectations

No current photonic phenomenon may provide what is needed in this regard, but should something suitable be discovered, distant electric vision will be possible according to the author’s opinion.

About the Author

Author: A. A. CAMPBELL SWINTON

Institution: 66 Victoria Street, London, S.W.

The article was published in Nature on June 18, 1908.

Article link: https://www.nature.com/nature

This article was borrowed from the SharedIt content sharing initiative of Springer Nature.

The article cites another article titled “Progress in Colour Television” published in Nature in 1952.

Source: https://www.nature.com/articles/078151a0


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