"Television: the revolution," ([1944])

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"THE MOVING FINGER WRITES— -" 21 close together that they can scarcely be seen sep- arately—except when the viewer is very close to the screen. As soon as one complete picture is traced on the kinescope, the cathode beam immediately zigzags back to .the top and starts to build up another picture .to follow the first. These pic- tures tumble on top of each other at a rate of thirty -per second. Each picture shows Miss Grable in a slightly different position than be- fore, and so she appears to be moving on the television screen. The pictures come so rapidly that there is not the slightest flicker, and the motion .seems to be continuous. The screen of the kinescope may be any size up to about sixteen inches; they can't be made larger, or the glass walls of the tubes would be crushed by the weight of the atmosphere press- ing against them from the outside. Engineers are now improving home projectors which will throw the broadcast picture on a standard beaded home-movie screen. However viewed, the picture is more distinct and enjoyable than eight-millimeter movies. The screen is fairly bright; but the picture shows up best when the receiver is in deep shadow, or when the lights in