Previous Issue:

Feb, 1934
Next Issue:

Sep, 1934
Thousand-Mile Lightning Rod PROTECTS GREATEST POWER LINE
CARRYING the heaviest electrical current ever conducted by a commercial power line, the longest and most efficient transmission system in the world will soon be in operation between Boulder Dam on the Colorado River and Los Angeles, Calif.
.
BARREL HOUSE READY FOR OCCUPANTS
A house in which steel hoops take the place of joists, rafters and studding, has just been completed at Dusseldorf, Germany. According to the architect who originated the odd design, it provides strength and stability at reduced cost by eliminating the need for thick outer walls.
.
DEADLY MONOXIDE GAS PIPED OUT OF GARAGE
I wonder how many mechanics got carbon monoxide poisoning before these were standard… DEADLY MONOXIDE GAS PIPED OUT OF GARAGE Danger of carbon monoxide poisoning is eliminated in a New York City garage by a blower system with junction boxes at convenient points. To these boxes are attached lengths of flexible hose which are connected […]
.
INFRA-RED PHOTOS SHOW VEIN DISEASE
With infra-red digital video cameras, computer processing and projectors this tech works amazingly well. Check out this video of the Vein Viewer (Warning: the link goes to a video that shows a person getting an injection and there is a small amount of blood. I know this freaks some people out.) INFRA-RED PHOTOS SHOW VEIN […]
.
Colored Underwater Lights Lend Magic Beauty to Garden Pools and Fountains
By Walter E. Burton THE magic touch of light will transform your garden pool into a jewel that gleams in the darkness with astonishing beauty. Goldfish, plants, and other details of the submarine world that you normally do not see, become a source of endless pleasure. If there is a fountain or miniature waterfall, light will bring out its hidden beauty. A swimming pool, whether indoors or out, will be doubly serviceable if it is equipped with an underwater lighting system.
.
Latest Conveniences for the Household
DISAPPEARING CORD. The cords for electric devices, below, are wound on spring-loaded reels concealed in the wall. When not in use, the reels wind up the cords and the plugs fit snugly into holder. AIR WHIPS CREAM Only a few seconds are needed to produce fluffy whipped cream with the utensil seen at left. An electric air compressor in the base forces millions of air bubbles through tiny openings in the stationary bottom of the bowl, as is shown below.
.
TYPEWRITER REPLACES TYPESETTER IN NEW METHOD OF COMPOSITION
PROMISING a new departure in the methods of printing books, newspapers, and periodicals, a recent invention enables any typist to produce perfectly aligned columns of copy with an ordinary typewriter, since it corrects the usual irregularity of the right-hand margin. The resulting copy may be reproduced by standard photo lithographic methods, eliminating the need for present-day typesetting, matrix, and stereotype equipment. A sample of the new typewriter printing is shown in the center illustration above.
.
Racing Electric Planes Is New Aviation Game
Aviation fans may play at a round-the-world race in a new game designed by Assen Jordanoff, veteran pilot and frequent contributor to Popular Science Monthly. Each of the players, which may number up to twenty, chooses a toy plane that moves across a large-scale map of the world.
.
CAMERA ON GUN TO TRAP CROOKS
CAMERA ON GUN TO TRAP CROOKS Photographic identification of fleeing criminals may be obtained with a recently perfected camera which is attached to a pistol or rifle and worked by the gun’s trigger. The lens used can work at an opening of F/3.5, which permits the camera to be used in comparatively poor light and […]
.
Camel Ad: Are you a Humming Bird?
It's irritating and it means... jangled nerves Yes, it's irritating to listen to that constant, tuneless humming—and more than that, the humming is a sign of jangled nerves. If you notice any of those telltale nervous habits in yourself— if you whistle through your teeth—drum on the table —then it's time to start taking care of yourself. Get enough sleep—fresh air —recreation—and watch your smoking... Remember, you can smoke as many Camels as you want. Their costlier tobaccos never jangle your nerves.
.
New Glider's Propellers Worked by Foot Power
New Glider’s Propellers Worked by Foot Power A glider now being built in Germany is equipped so that it can be propelled by human power. When the pilot turns pedals located beneath his seat, power is transmitted to a propeller by means of bicycle chains and reduction sprockets. Although the propelling force developed is not […]
.
Robot Guards Foil Uprising in Biggest Jail
WITH one foiled jail break to its credit, a new electrical communication and alarm system installed recently in the five-story county jail at Los Angeles, Calif., is believed to make the institution proof against an uprising of prisoners or an assault by armed gangsters from without. This ultra-modern skyscraper jail, called the largest in the country, occupies the top of a tall building whose lower floors are used as courtrooms. A prisoner attempting escape has the choice of a sheer drop of ten stories, or a desperate dash for freedom through the corridors and elevators.
.
New Foods FROM THE Test Tube
By Edwin Teale HOLDING a tiny mound of white crystals in the palm of his hand, a New York scientist recently came to the end of a twenty-year trail of investigation. He is Robert R. Williams, head of the chemical research department of the Bell Telephone Laboratories, and the crystals he has produced are a concentrated food vitamin of amazing possibilities. When white rats, scurrying about cages in a Columbia University laboratory, sipped water in which the magic crystals had been dissolved, they made astonishing spurts in growth. Applied to humans, it is suggested, the new food may increase the stature of undersized children or even, in the realm of the fantastic, produce giants!
.
House on Wheels Towed by Auto
A NEW mobile house, just invented, can be towed over the highways on detachable wheels to any site chosen by the owner. As delivered to the purchaser, the dwelling, in outside dimensions, would be smaller than many motor trucks now in use, according to Corwin Willson, housing research specialist of Flint, Mich., the inventor.
.
Raccoons for Hunters Grown on State Farm
REMARKABLE METHODS ADOPTED TO SAVE GAME ANIMALS FROM EXTINCTION Grover C. Mueller IF YOU ever go raccoon hunting in Ohio, the chances are that the ring-tailed quarry your dogs find and hold at bay in a tree spent the early months of its life on an unusual farm almost within sight of the boyhood home of Thomas A. Edison. For more than two years, the State of Ohio, using money obtained from the sale of hunting licenses, has been operating a raccoon farm at Milan, not far from the shore of Lake Erie. This farm, believed to be the only enterprise of its kind maintained by a state, was established in an effort to prevent the extinction in Ohio of one of the gamest of native animals.
.
MORNING NOT BEST WORK TIME
I couldn’t agree more. MORNING NOT BEST WORK TIME Contrary to long established belief, the ability of most persons to work more swiftly and accurately on rising from a night’s sleep is not as great as it may be at other times. This was one of the many surprising facts discovered during a new series […]
.
CAMERA PROVES LOCH NESS SEA SERPENT IS JUST A WHALE
By identifying the sea serpent of Loch Ness, Scotland, as a familiar species of whale, naturalists have just shown how easily the human eye may be fooled into thinking it sees an unfamiliar monster. Worldwide interest was drawn to Loch Ness, within recent months, by repeated eyewitness reports of a long-necked, aquatic apparition of huge size, resembling no known marine animal.
.
Twin Amphibian Cars for Monorail
Swift, Overhead Trams to Be "Equipped with Floats to Cross Water Like Boats AMPHIBIAN trains that can whiz above desert sands on an overhead rail, or plunge into the water to ford a river, are contemplated by the Soviet Government in an amazing plan to tap mineral wealth in Turkestan. They are to travel three projected monorail lines of unprecedented design, totaling 332 miles in length and crossing deserts and rivers.
.
PASSENGER'S CAR POWERS FERRY
PASSENGER’S CAR POWERS FERRY Power for a new motor ferry, recently tried out on the Amersee River in Bavaria, is supplied by the passenger’s car. Driving onto the open deck of the ferry, the motorist stops with the rear wheels of his car resting upon rollers, similar to those used on most brake-testing machines.
.
NEW FOOT PADDLES MAY MAKE SWIMMING EASIER
NEW FOOT PADDLES MAY MAKE SWIMMING EASIER Easier swimming is said to be possible with a set of foot-paddles, recently invented. Fitted to the soles of special sandals, the paddles spread out with a downward or backward thrust of the leg and close with a forward or upward movement. They will be found especially helpful, […]
.
Inventing Puzzles is Hobby of Professor
Inventing Puzzles is Hobby of Professor WHEN C. A. Jacobson, professor of chemistry at West Virginia University and the inventor of numerous pieces of laboratory equipment and a calculating machine, needs diversion, he turns to constructing puzzles. His interest in puzzles dates back forty years and he has been inventing them for more than twenty-five. […]
.
UNUSUAL PHOTOS MADE IN HIGH-VOLTAGE GLOW
UNUSUAL PHOTOS MADE IN HIGH-VOLTAGE GLOW By passing high voltage current through familiar objects, remarkable photographs of them have been taken in Germany. Coins, necklaces, and belt clasps, used in the experiment, glowed with fantastic radiance and the material was easily photographed in a darkened room. Voltages ranging from 100,000 to 150,000 were used in […]
.
ELECTRIC FAN HELPS BOXERS GET BREATH BETWEEN THE ROUNDS
ELECTRIC FAN HELPS BOXERS GET BREATH BETWEEN THE ROUNDS An electric fan was used to refresh boxers between rounds at a recent military boxing tournament in England, as shown below. The fan, its blades guarded by wire mesh, is hinged to the end of an extension arm attached to a corner post of the boxing […]
.
FLASH-LIGHT CELLS RUN ELECTRIC VIBRATOR
Wow, that spiky head doesn’t look very fun. FLASH-LIGHT CELLS RUN ELECTRIC VIBRATOR An electric vibrator, designed to operate on flash-light cells, instead of house current, has been introduced for use by travelers and by those whose homes are not wired for electricity. The device, shown above with its attachments, is declared by the maker […]
.
Dangerous ACIDS MADE SAFELY BY Home Chemist
By Raymond B. Wailes BECAUSE they enter into a wide variety of reactions, acids form an interesting and important group of chemicals. By preparing them in small quantities, the home experimenter can learn a great deal about chemistry and its many mysterious reactions and valuable processes.
.
New Radio Pen Reproduces Pictures Put on the Air
BROADCAST listeners may soon receive comic strips, bridge problems, and road maps over the air through a new device known as a radio pen, now under experimental development by John V. L. Hogan, New York radio inventor. The machine is a simplified adaptation, for home use, of commercial high-speed facsimile apparatus, and is housed in a metal cabinet no larger than a typewriter. An electrical pen traces ink pictures, broadcast from the transmitting studio, upon a moving paper strip four inches wide, requiring about two and a half minutes to complete a sketch.
.
NEON TUBE EXPERIMENTS
Weird Stunts Performed with Simple Apparatus By WALTER BACH THE hand is said to be quicker than the eye, but a neon tube holds the real prize for speed. It can flicker on and off a hundred times while the eye blinks once! Because of this peculiar ability, many amazing experiments can be performed with it at practically no cost. A few of them will be described together with a home-built circuit breaker with which to do them. A storage battery or any other source of A. C. or D. C. current of from 6 to 12 volts may be used.
.
DRIVER'S SCARF HEATED BY CAR
DRIVER’S SCARF HEATED BY CAR An electrically heated scarf for the comfort of open-car drivers on cool evenings has been devised by a Los Angeles, Calif., inventor. An electric heating element is woven into the fabric, and a flexible cord attached to one end of the scarf is plugged into an outlet in the dashboard […]
.
Army Recruited from Idle Men
WARS AGAINST FIRE and FLOOD By Robert E. Martin A YEAR ago the Government, with incredible swiftness, created the Civilian Conservation Corps. Two ends were sought in its creation. It was designed first of all to take out of the ranks of the unemployed 300,000 young, single men with dependent relatives. Of equal importance was the intention to use the labor of these men in conserving the vast timber and soil resources of the country.
.