Word: senders
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...promoters, it was announced, are still free to use the outgoing mails to return contestants' money or to award prizes in their current contest. But any letter addressed to Grand National Treasure Hunt or the Association for Legalizing American Lotteries will henceforth be stamped FRAUDULENT, returned to its sender...
...Zworykin sender the image to be televised falls on a small sheet of mica covered with millions of microscopic dots of photosensitive cesium. Each tiny dot receives an electric charge according to the amount of light that falls on it. A beam of electrons shot from a cathode tube and controlled by rapidly oscillating magnetic fields weaves back & forth across the sheet of mica 6,000 times per second. The beam discharges the electropositive tension in the dots, and the changing pattern of this discharge modulates a current passing through the sheet. The modulated current, fed into a radio transmitter...
...Farnsworth sender the image falls on a photosensitive cathode surface without dots. Electrons knocked out of the cathode by the light image in random directions are brought to a focus by a stationary magnetic field. This "electronic image" corresponds to the light image. By means of oscillating magnetic fields, the entire electronic image is moved back & forth 7,200 times a second in front of an aperture. The number of electrons escaping through the aperture constitutes a varying electric current, which, amplified and transmitted, controls the "oscillight" in the receiving set where the images are conversely reproduced...
...Harvard alumni announcing the plan for national scholarships and roving professorships was received by President Conant at 3 o'clock yesterday afternoon. The contents will not be released by University Hall since the Nazi's answer is a personal letter to President Conant and it is customary for the sender to publish the text of such a communication rather than the recipient...
...demonstrate the sensitivity of these ultra-short waves, Professor McCaleb showed an apparatus which he had in his laboratory. There was a small transmitter to set up power-producing waves, and a receiver to record them. Even when a hand was passed between the sender and receiver, fluctuations were very marked...