Television Shows Full Size Images
MOVING television images on a screen 10 feet square, produced beautifully clear, perfectly defined, and possessing the illusion of depth, is the latest and most amazing step in the advance of television art. This new development, accomplished by Mr. U. A. Sanabria, a Chicago television expert, enables a large crowd of spectators to view a radio performance, and heralds the day of “television theatres.” Full size images are made possible chiefly by development of a new neon arc tube and a special scanning disk.

It’s All Gold that Glitters Here

HALF of the yearly gold production of the world passes through the great refinery at Germinston, South Africa, where the photographs shown on this page were taken.

TIN CAN JEWELS
AUTHENTIC copies of European crown jewels, in tin and glass, are the hobby of Dick Stier of Bloomfield, N. J. Stier, himself of noble German descent, got on the kick watching the coronation of Elizabeth II, now has crown jewels of the czars, the Pope, German royalty—all meticulously copied in fruit can metal and junk gems.

This article is incomplete. It does not continue on page 188. In fact I looked on every page of the magazine, and the ending is nowhere to be found. Oh well.

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Amazing Vacuum Tubes May Eliminate Motors

by JAY EARLE MILLER

Based on an interview with Dr. W. R. Whitney and Associates of the General Electric Research Laboratories Scientists have accomplished the marvelous feat of literally taking nothing, sealing it in a glass tube and making it perform the tasks hitherto done by huge motors. Thyratrons, as these amazing vacuum tubes are called, may soon relegate all machinery to the junk pile. Already vacuum tubes are curing dread diseases, increasing the range of man’s senses, and saving industry huge sums.
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Richard Du Pont—Millionaire Glider Fan

ONE would expect to find a Du Pont in a Washington drawing room or on the sands at Newport; but young Richard Du Pont, son of the industrial magnate, reverses the procedure by spending a great part of his time in a workshop.

Out in the San Fernando valley, a short distance from Los Angeles, stands a small laboratory. There young Du Pont and his co-workers are daily experimenting to make the air currents safer for glider-conscious America.
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NEW SCALP EXERCISER IS DRIVEN BY ELECTRICITY

BALDNESS seems to be the fear of all men. Here is the newest remedy for that fear. The new motor-driven scalp exerciser is guaranteed to give the scalp all the exercise that it needs. Scientifically the principle that this machine exemplifies is correct. Since blood is the food on which all the tissues of the body feed, the supply must be kept fresh and plentiful. Read the rest of this entry »

Largest Dial Thermometer Built

THE world’s largest dial thermometer has recently been installed at Atlantic City. The diameter of the dial is 22 feet; the pointer measures 9-1/2′. The control element is a small helix of bronze tubing filled with a liquid which expands or contracts with each change in temperature.

The last section of this article (Buying Hats by Radio) seems like a weird addition. Apparently television and radio advertising are the only thing that can save the world.

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What Will Happen to Flying?

by CAPT. EDDIE RICKENBACKER

Commander of the First A. E. F. Air Squadron in the World War.

GIANT dirigibles a mile in length, airplanes capable of flying at 500 miles an hour—these are only two amazing developments which Capt. Rickenbacker predicts are waiting just around the corner of the new air age in which we live. Being the greatest of America’s war aces as well as a motor car engineer of national reputation, Capt. Rickenbacker’s predictions are those of a recognized authority.
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Here by your bedside, warm and glowing, is the Sun itself

Snap the switch and you have wrought a miracle. Out of winter’s darkness springs summer sunshine, glowing with all the warmth and vitality of June.

Only a lamp, you may say, but a lamp that is one of the triumphs of modern science, because it is in reality a miniature sun duplicating the essential rays which have made sunlight the source of life and energy for all mankind.
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Articulated Bus Shows to Advantage in Traffic and on Narrow Roads

THE size of the motor-bus seems to be limited only by traffic conditions and the roads over which it is to operate. Finding it impossible to widen the German roads or to thin out traffic, a manufacturer of that country has introduced the articulated bus, which permits the largest of the species to wind its serpentine way through traffic or narrow roads.

In this vehicle the driver’s seat is placed immediately over the front wheels, the bus being jointed behind this point.

PERMANENT LETTER FILE

ANYONE possessing a phonograph can read the “photovox letter” shown above, by merely placing the plate on a machine and playing it like any other record. The chemical process that was devised to manufacture the photovox disc and retain a permanent record of the spoken word was the work of two Vienna inventors, Prof. Eugen Fischer and Chemist Otto Zecha.

The difficulty with the ordinary reproducing record that can be made at home or in the office is that the air will make the record deteriorate so that it is unintelligible. The “photovox” plate has been made impervious to the air by the new chemical process.

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Rockne Plane Crash Inspires Safety Inventions

FOLLOWING the recent tragic crash of a tri-motored airplane in which Knute Rockne, Notre Dame’s famous football coach, and seven others were instantly killed, a new impetus has been given to the invention of safety devices designed to prevent the recurrence of such catastrophes in the future. It will be remembered that one wing of the Rockne plane was torn off in mid-air.
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