Previous Issue:

Nov, 1929
Next Issue:

Jan, 1930
Rocket Sleds and Snow Gliders Develop High Speeds
FOREMOST among the foreign sportsmen who are developing new inventions for speedy winter travel are Max Valier, a German inventor who has a rocket sledge, and Jacob Camille who has developed a speedy snow glider.
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Navy Flyer Invents Tandem Airplane for Heavy Loads
Harold H. “Kiddy” Karr was a pioneering naval aviator (Enlisted Naval Aviation Pilot Certificate #1).  He passed away in 1978. Navy Flyer Invents Tandem Airplane for Heavy Loads A TANDEM airplane called the KarrAvan has been invented by Harold H. Karr, a naval aviation pilot at North Island, San Diego, California. The ship which is […]
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Electric Tortures Devised
TORTURE by electricity is reported to be tlie latest crime-detecting device of the new government police in China. Chinese courts have long recognized torture as a legitimate means of inducing reluctant witnesses to speak. The victim is stretched out full length on a frame of bamboo and tied there, with his hands crossed on his chest and fastened to the terminals of the electric machine.
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Water Traffic Cop on Duty
Water Traffic Cop on Duty HERR HAMMER, water traffic cop on the Wannsee lake near Berlin, is pictured signaling a pleasure craft to stop. On his feet are metal paddles for “walking.”
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Patents ~ Nutty or Novel
Maybe you don't believe that the inventors of the devices shown on these pages went to the trouble of securing patents on them, but they did, every one of them. Hurricane Cable Anchors Houses to Ground to Resist Storms. WHAT couldn't have been done for the leaning tower of Pisa with the anchoring cable shown in the drawing above! Too bad the idea was patented about 400 years too late to do the leaning tower any good— and in the meantime it went right on leaning and got itself famous, being the originator of that now famous stunt.
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Novel Camping Trailer Opens Into Comfortable Quarters
Novel Camping Trailer Opens Into Comfortable Quarters A NOVEL camping trailer has been produced in London which is hailed with delight by lovers of the outdoors because of the comfort it provides. The trailer, compact when closed, is attached to the rear of the automobile by a device which makes it ride easily with a […]
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A Whole Mess of Stuff I Couldn't Easily Separate
All the characteristics of a mammoth ocean liner are reproduced in the "Columbus," the miniature ship shown above. It is 25 feet long and was constructed by a German engineer at a cost of #4000. Top photo shows the model coming into dock under its own power after a practice spin; below it appears a close-up of the ship. It is driven by an electric motor. Neil Hamilton, movie actor, demonstrates a revolving camera for taking "dizzy" shots in which rooms and people tumble all over the screen. Novel Automobile Is Driven By a Single Wheel at Rear.
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Hunger Measured by Balloons
Well, that sounds unpleasant. Hunger Measured by Balloons SWALLOWING small rubber balloons after fasting from 15 to 44 hours, and then causing intense pangs of hunger by taking an insulin injection, sound like making a martyr of oneself for science. Yet this is the program submitted to by a number of men in the laboratory […]
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Octagonal Hangar Houses Planes Without Waste Space
WHENEVER a new aviation field or airdrome is planned there always arises the problem as to the type of hangar which should be erected. If the aviation field is planned for a small town or for a limited number of planes the problem is simple but when a modern airdrome with unlimited aerial traffic is contemplated, conditions are different.
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Digging a Pirate's Cave
By HI SIBLEY WHILE excavating for a new house in the weed-grown lot next door, workmen unearthed a surprising maze of caves and trenches. Evidently they had been dug many seasons before because bushes and weeds were growing luxuriantly from the soil spread over the roofs. Considerable grading and no end of fancy language were required before the lot was in shape to build on. But it proved that a well-made cave is about as substantial a clubhouse as a boy can make.
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Self-Tuning RADIOS to be Fan's Choice in 1930
Gone are the tinkerers who used to buy sets. Music with one dial whirl is wanted today. 1930's sets will carry one dial or automatic tuning to be up to date. THE new 1930 radio sets will be first of all. beautiful. The most marked change in trend in winter buying of radio sets, according to a large number of radio dealers, is that the emphasis has changed from interest in a radio set as a piece of machinery, to demand that it be a piece of furniture. In the past, most radios have been sold because the buyer wished to get things over the air. This condition still exists, but coupled with it is the fact that the buyer now also wants his radio to be handsome as well as practical.
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Human Wings Are Predicted
HUMAN wings are predicted by Dr. Lucien Bull, a director of the Marie Institute at Paris, who seriously advanced his theories before groups of American scientists. Dr. Bull believes the human wings will come as a perfectly natural and logical development and saw nothing in his startling claims to arouse surprise. "A man who is able to run upstairs ought to be able to fly," he maintains.
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Easy STUNTS with Paper
Amusing tricks can easily be performed with sheets of paper if you know how to fold and cut or tear to obtain intricate and unusual patterns. Soldier hats and headpieces of other styles as well as the Jacob's ladder can be speedily produced. by KEENAN H. WARD ALL you require in the way of equipment is a sheet of paper. All you need to do is fold it several times, here and there; tear it, so and so . . . and there you are with a clever paper hat, a mariner's wheel, a paper ladder or some other clever little knick-knack of entertainment or utility.
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"Skip Distance" a Radio Mystery
This, of course, is the radio waves bouncing off of the ionosphere. I think they’ve known this for quite a while though. Does anyone know when it was figured out? “Skip Distance” a Radio Mystery TO MANY uninitiated to the mystery of radio the phenomenon known as ‘”skip distance” is most puzzling. The layman might […]
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BOOMERANG throwers Show Amazing Skill
Deadly primitive weapon, a flat crooked stick, is still thrown by native tribesmen with remarkable accuracy and properly hurled the weapon will fly back almost to the feet of the thrower. Bushmen make more than 20 forms of boomerangs and the home shop worker can with little difficulty construct his own weapon. by SAM BROWN
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Airplane to Run on hydrogen from Air
Airplane to Run on hydrogen from Air Flying at a height of 25 to 30 miles, an airplane being planned by Professor Rondine, of the Department of Aeronautics at Leningrad University, Russia, is to take the hydrogen which exists at these altitudes and use it for fuel! Professor Rondine proposes to equip his plane with […]
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Deadly WEAPONS of the NEXT WAR
By JAMES NEVIN MILLER Anti-aircraft guns capable of firing 25 3-inch shells a minute, bringing down bombers miles in the heavens; range-finding mechanisms which determine an airplane's position so accurately that they in effect make anti-aircraft guns self-aiming; amazing armored tanks which travel 70 miles an hour—these are only a few of the astonishing new war machines developed by army experts ready for deadly service in the next war.
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New Toaster Works Automatically
TWO slices of bread can be toasted at once to any predetermined degree in a new automatic toaster recently placed on the market. Bread is inserted in holders in the door, as shown in the photograph at the right, bringing the bread between the heating elements when closed. A dial on the front of the machine regulates the length of time the current is left on. determining whether the toast is to be light or dark.
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HOUDINI'S Mystifying Magic Stunts EXPOSED
By R. D. ADAMS The Mechanic Who Made Houdini's Trick Magic Apparatus Recognized as the Master Magician of his time, the great Houdini performed tricks of magic which were the marvel of millions. Only one man knows the secrets which Houdini carried to the grave with him. That man is the mechanic who made Houdini's illusion-producing apparatus, who concludes his expose below.
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Do Your Friends Feel Sorry for Your Wife?
Like it or not, your friends and neighbors size you up by what you EARN —judged by your home and family. Why not surprise them by making good in a big way? Tell them nothing, but on the quiet fit yourself for a bigger place! ONLY a woman knows how much a wife can suffer when her husband fails to "make the grade"— When she dreads to meet her old school friends—when she skimps on her own appearance "so John can make a good showing at the office"—when she can't give her children things as good as the other children have, and they ask her why.
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Glenn Curtiss Designs Fast Aero Car for Air-Rail Services
GLENN CURTISS, pioneer pilot and seaplane builder, is the designer of the new aero car which he introduced in Florida. A fleet of these aero cars has been placed in service by the Transcontinental Air Transport at their various fields and terminals for the air-rail service between New York and Los Angeles.
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Sun Light Shower Baths to Pep up Weary Congressmen
Sun Light Shower Baths to Pep up Weary Congressmen CONGRESSMEN in Washington now resort to sun light baths in the turkish baths of the House of Representatives office building when they become jaded. Weary from their intensive work and political worries congressmen find that these sun baths restore their “pep.” The lights, when the treatment […]
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"Tele-Talkies" in Color Latest Feat in Radio
Radio's latest surprise, talking pictures in color, will soon be available to every home. Artists are now to literally stage performances in your living room. A VERY pretty girl in a fancy dress of many colors sat before a transmitter in a certain section of the Bell Telephone Laboratories in New York City the other Jay. Just a few steps away, in an adjacent room, a group of famous scientists and journalists, evincing the utmost curiosity, concentrated their attention upon a television receiving apparatus.
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Artistic Hot Dog Stands Fostered by New Organization
DESIGNING and construction of artistic hot dog stands and filling stations is being fostered by the new National Stand Owners' association of operators of roadside refreshment and motor service stations. Instead of waiting until the highways are further cluttered with temporary, nondescript eyesores, they have set out to dignify and stabilize their business by advocating more attractive and sanitary stations.
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Fast Ice Boat Built With Scraps and Old Model T Engine
Fast Ice Boat Built With Scraps and Old Model T Engine LOUIS HEUPEL, of Cleveland, Ohio, wanted a fast ice boat. He had an old Model T Ford engine and didn’t want to make a sail so he set to work. Using scraps of lumber, metal and a variety of available bolts and screws he […]
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Tricks that Trap Mail Thieves
Postal inspectors "never lose their man," because they use tricks like the vari-scenting of mucilage to trail certain thieves and keep everlastingly on the trail with a variety of methods of detection. By C. MORAN A SERIES of thefts of the contents of registered mail was reported to the Chief of Post Office Inspectors at Washington. An inspector assigned to the case limited the area of pilferage to half a dozen post offices. He arranged secretly to have the mucilage at the different stations given faint traces of various scents—lilac, violet, lily of the valley, mignonette, rose, and heliotrope. The next time a theft was reported the inspector smelled of the resealed flap and the thief was speedily apprehended.
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Chimpanzee Plugs in and Gives Wrong Numbers on Zoo Switchboard
Chimpanzee Plugs in and Gives Wrong Numbers on Zoo Switchboard DICK, one of the chimpanzee residents of the Luna Park Zoo in Los Angeles, California, paid a call to the zoo office the other day and while there he made friends with the telephone operator. When invited to try out the switchboard, Dick pushed and […]
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HENRY FORD TELLS WHAT to INVENT ~
In an Interview by M. K. WISEHART Author of "Marvels of Science" Those who assume that we have reached the true industrial age are doubtless in line for a big surprise, says Henry Ford in this remarkable interview in which he declares the real industrial age is just dawning, and advances valuable information on needed inventions of today and tomorrow, such as a revolutionary airplane engine; a powerful motor fuel; and a method of converting coal to power underground.
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Cellular City of Tomorrow
HIGHLY modernized cellular cities are predicted for the future by the Regional Plan of New York and its Environs based on a 5-year study by Clarence Arthur Perry of the recreation department of the Russell Sage Foundation. The cell city which is seen by Perry as the inevitable product of an automobile age will be made up of a varying number of complete community units. The cell city-proper will be like a honeycomb of individual cell cities, standardized, and to a certain extent self-sufficient.
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Ash Receiver on Gear Shift Lever
Ash Receiver on Gear Shift Lever AN ASH receiver at the driver’s finger tips has been invented by an automotive manufacturer to be attached to the gear shift lever, replacing the gear shift ball. The receiver is made of heavy brass and nickel and enameled in assorted colors. The novelty is constructed to withstand hard […]
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