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Five Roads to Doomsday

By Richard F. Dempewolff

UNDER a star-studded dome of blue sky, people gazed upward uneasily. Something was wrong with the solar system. The friendly, familiar moon had ceased to be friendly. Slowly, it was moving closer and closer to earth until, finally, an unfamiliar moon, huge and terrible, filled half the sky.

There was no beauty in the awesome spectacle. With the moon’s advance, ocean tides grew into mountains of water, spilling over continents, obliterating cities. Molten matter from deep under the earth’s crust, spewed from every crater and crevasse. Oceans atomized with hissing roars. Cities crumbled and were engulfed in a sea of liquid fire.
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AMAZING POULTRY SECRETS

I would like to send you my PICTURE TOUR BOOK absolutely FREE about one of America’s largest and oldest Poultry Farm and Hatchery organizations.

My book is very complete and full of interesting and in* structive color pictures. I know you’ll enjoy and profit by reading it.
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Bazooka Turns Pitcher

Using the tube of a bazooka he carried during the war, Pete Wald, a New York optometrist, devised. the mechanical baseball pitcher shown below. The tube carries the balls to a motor-driven throwing arm.

This looks like the Victorian Clampetts.

This original Model E was photographed during a 1905 Florida racing carnival. It was built by the White Sewing Machine Co.

What means most to an Engineer?

PROFESSIONAL RECOGNITION

GOOD SALARY

UNEXCELLED FACILITIES

SUBURBAN LIVING

A Career at RCA offers all Four!
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Super-Cycle to Smash All Speed Records

MOUNTED on spherical airwheels of moderate pressure, a recently designed super-motorcycle powered with twin motors is expected to shatter all existing speed marks for land vehicles. Speeds of more than 300 miles per hour will be reached without difficulty, its designer believes.

The driver is encased in a partially faired-in cabin and is securely strapped down in his seat. A headrest over the windshield provides additional bracing. Steering is effected in the customary manner. Two separate power plants are employed, one on each side of the powerful rigid chassis. The drive is carried to the rear globular wheel by means of conventional shafts and gearing.

The peculiar wheels, apart from providing greater traction and serving as shock-absorbers, are expected to add to the streamline possibilities and the stability of the machine.

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THE BOEING PLANES

An interest in aviation as a hobby led to the building of the world’s largest bombing planes.

TO ANYONE familiar with aviation, the name Boeing calls to mind the engineering of a variety of aircraft from small fast pursuit ships to big four-engined “flying fortress” bombers and commercial transports. A two-decked flying boat with a wing span of 152 feet, which will be capable of carrying as many as sixty passengers and a 107-foot span low-wing monoplane, designed for high altitude and sub-stratosphere flying, are being developed by Boeing at this time.

It is interesting to note that the founding of the Boeing organization and the eventual engineering of these super transports is the result of an accident. Back in 1916, William E. Boeing, who had become interested in aviation as a hobby, and had learned to fly in California, had a crack-up with his plane. In contemplating the possibility that the damaged craft might be repaired in Seattle, he finally decided that an entire new plane should be built. Gathering a small group of interested men, he formed the Pacific Aero Products Company and in a small one room plant production was begun on the first Boeing ship, the B & W seaplane trainer of 1916. An unequal span twin-float biplane fitted with a 125 h.p. Hall-Scott motor, it had a cruising speed of some 60 m.p.h.
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You Squeeze It.
Bottles that you can squeeze are among the latest things to hit the market. But instead of glass, they’re made of flexible plastic and won’t break. The one shown here was molded by Plax Corporation, of Hartford, Conn., and it’s used as a powder container, a hole in the stopper allowing the talcum to be blown out.

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Simple Electric Eye Rings Fire Bell, Open Garage Door

ANYONE interested in experimental electricity can gain a great deal of knowledge and pleasure from the construction of this light-sensitive selenium cell, and have also a handy electric eye that will actuate through a relay any bell, motor or magnet circuit in the bargain.

First, in making the cell, notch the long edges of a piece of mica with about twenty teeth, and drill small holes in the corners, as illustrated in Fig. 3. Next tie the end of a length of No. 18 wire to one pair of holes in the mica and wind on approximately 10 turns, using every other notch along both top and bottom edges. Pull tight and tie the opposite end of the wire in the holes at the opposite end from where it was first tied. Do the same with the second piece of wire, tying the ends in the opposite corners. Fig. 3 will show this plainly. Then test out each winding as illustrated in Fig. 4. If the two windings touch at any point the lamp will light.
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Blow, Pedestrian, Blow

Much has been written about careless driving and traffic hazards in Los Angeles, but Hilton Tupman, of that city, has done something about it. Carrying his six-pound pedestrian horn, shown above, he honks his way across streets, warning over-eager motorists that even the lowly foot-traveler has some rights. The tank holds air under pressure of 500 lb. A trigger release under the handle sounds it off, good and loud.

Wow, those are some phallic looking toy rockets.

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NEW in SCIENCE

MINIATURE ROCKET exhibited at toy fair in Nurnberg, Germany, is propelled by a mixture of water and compressed air. Pump is in launching handle. Rocket can reach altitude of oyer 160 it.

HOME IN A BALL on display at the International Auto Show in Frankfurt, Germany, is hemispherical, easily carried on car’s roof. It costs about $160 and is manufactured by Otto Roseman of Bavaria.

SPORTS KIDDIE CAR is 62 in. long, 30 in. wide with 6-volt battery and speed of 5 miles an hour. It has accelerator, brakes and dashboard and costs about $500. Ideal Toy Corp., Hollis, N. Y.
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