IT IS not necessary to have a steel runnered sled to attain great coasting speed on a snowy hill. A bobsled can be built of an ordinary 2x12 inch plank and barrel staves which will pass anything on any hill, especially in deep snow. Besides the material just mentioned all that will be needed are a few pieces of 2x4 and a couple of carriage bolts.
by W. H. TURNER Technical Editor Encyclopedia Brittanica TWENTY years ago Shackleton set out for Antarctica with a shipload of equipment. Today a million dollar expedition with four ships and four airplanes is exploring the same ground—but in what a different way! Old and new methods of exploration are graphically contrasted in this authoritative article.
AMONG the treasures which have been accumulated for centuries by the conquerors of Turkey is the unique and world-famous throne of Shah Ismail of Persia, shown in the above photograph. Pearls, rubies, sapphires, and other precious gems incrust this priceless piece of furniture, which is estimated to be worth $10,000,000.
NEW TELEPHONIC DEVICE KEEPS HANDS FREE MR. GEORGE TANKARD is shown below with his new invention that is designed with an eye to speeding up the efficiency of a busy man. This invention is balanced on the shoulder by the form fitting holder. The receiver is placed in the holder and then adjusted to the [...]
TROUBLE LAMP FITS FINGER EVERYONE who has had to repair a piece of machinery at night will appreciate the advantages of a new trouble light recently invented. The electric lamp is so small that it can be clamped to a finger of one hand, thus enabling the worker to use both hands and direct the [...]
ROCKET PLANE POWERED BY 86 GUN BARRELS A STANDARD type plane which can be made into a rocket-propelled machine by equipping it with gun-barrel attachments is shown in the picture at the left. The machine is the invention of Maurice Poirier of Burbank, Cal. Regular gasoline motors are used in the plane in addition to [...]
MORRIS WOLF, a veteran detective of the Boston, Mass., police force, received a very strange time-keeper on his 68th birthday. Detective Wolf was presented with a clock of many faces by his children. This clock contains, in place of figures, the photo likenesses of his twelve grandchildren.
By T. S. ASGAARD RAZOR blades, box wood, and an old flour sack are the materials used in building this simple, fast and sure sailing iceboat. Balanced so that she will sail herself in all winds not strong enough to tip her, it will be found that this style boat is the answer to those boys who have often tried to make a workable miniature iceboat, only to find that the balance was wrong, that the thing was too heavy, or that it would not steer.
IT DOESN’T HURT A BIT Dr. M. E. Moby, of Los Angeles, found his canine patient more unconcerned than a human patient when he used his dentist’s drill to make way for a new inlay.
CHINESE BUILD WEDDING CAR IN CHINA no marriage is considered to have been fittingly solemnized until the bride and groom have ridden at the head of the wedding procession in an automobile similar to the one shown below. The special “gingerbread” body, decorated with gold leaf and hanging tinsel, represents an investment of about $5,000.
RADIO WAVES KEEP AIRSHIP ALOFT PROPELLERS and engines are not needed to fly the model airship of Bernays Johnson, who is shown with his craft in the photograph at the right. A powerful radio wave which neutralizes the pull of gravity is the force which keeps the ship aloft. Johnson experimented for ten years before [...]
PARKING PROBLEM SOLVED! IF you can’t find a parking space big enough for your automobile, turn the car up endways! This is the solution of the parking problem devised by the group of collegians shown in the picture.
AN UNUSUAL type of surf plane powered with a reclaimed wartime rotary airplane motor has been designed by Sol Messina, of New York. He expects his novel craft to develop a top speed of 85 miles an hour.
HERE are a few more recently patented "dream kites" which the inventors who planned them hope will soar to dizzy heights of fame and fortune. Just how useful they will prove to be only time can tell. Which Are They—Nutty or Novel?
WHEN BENNY WATTENBERG, star half back of the University of Chicago football squad, discovered that he was hampered in executing forward passes because of near-sightedness, the coaches decided that Wattenberg was too good a man to lose and they devised a method of fastening special shatter-proof lenses to his football gear.
by EUGENE GRANT who interviewed the Zeppelin crew. BUFFETED by the wind, with a torn fin, the Graf Zeppelin faced destruction unless the damage could be repaired. Here is the inside story of how the daring crew climbed onto the fin and saved this giant from destruction. LITTLE has been told of that remarkable feat performed by the crew of the Graf Zeppelin in repairing the port horizontal fin damaged by the storms and threatening the destruction of the great air liner on the first passenger trip by air to the United States.
ONE OF THE fundamental urges in the soul of every man is the urge for self expression. In some men it is music which touches a responsive chord, and these men find satisfaction in playing a musical instrument. In others, sports afford an outlet for self expression. Still others turn to mechanics and science as a means for satisfying the urge to create.
PERFORATED STRIPS ELIMINATE SOLDERING A NEW system of wiring up radio sets has been devised by a London engineer who conceived the idea of using perforated metal strips instead of wire. The strips can be bent and joined together at will, eliminating the need for soldering the joints. The photograph shows the strips being used [...]
By RAY F. KUNS FOUR hundred feet in the wink of an eyelid—that's what the modern racing car can do! The story of the development of these 250 mile an hour cars is fascinatingly told here by Mr. Kuns, who knows the racing game as few men do. EIGHT MILES an hour, 20 miles an hour, then 30, 40, 50, 75, a hundred —and now 250 miles an hour, or more than four miles a minute! This is the incredible accomplishment of the racing automobile, which was born upwards of 30 years ago and which today has attained a degree of perfection undreamed of by Barney Oldfield, Ralph DePalma, or those other daredevil drivers of the old dirt tracks!
A NEW natural color process, the O'Grady natural color film process, is soon to be available for 16 mm. films and cameras. This system is based on the Kinemacolor process invented many years ago. Ordinary panchromatic film is used and is exposed through a color wheel having two semi-circular segments, one of red and orange, the other of blue and green.
By Will Bradford USING newly perfected methods of paper manufacture, Uncle Sam has increased the life-span of the average dollar bill fully three times! This article takes you behind the scenes of the world's greatest money factory. INCREASING the life of the dollar bill is the latest achievement of the U. S. Treasury, a feat which has involved several years of research and which has resulted in the perfection of grease-proof, oil-resistant, wear-worthy currency which will last longer than any ever previously produced.
Walking on Wheels is the Latest European Sport THE newest aid to the pedestrian is the “paticycle,” invented by a Frenchman as an easy and inexpensive means of getting from here to there. The device consists of wheels attached to the walker’s feet and legs by means of braces. It is operated by swinging the [...]
Built with flapping wings and bird-like body, this "American Eagle" plane collapsed before its inventor could get the novel machine off the ground! THE mystery attached to the so-called "mystery airplane" built by James A. Crane of Ellsworth, Maine, seems to be— "Why doesn't it fly?"
Novel Stunts of Advertisers IN these days of competition among advertisers it is the businessman using novel methods of attracting the attention of the buying public who is convinced that “it pays to advertise.” ONCE a manufacturer has made the name of his product a household word, his success is assured. A billion dollars will [...]
BRITISH politicians have seized on the talking movie as a novel means of waging their campaigns in the general elections soon to come before the public. The photograph shows a London crowd listening to an open-air movie speech on a street-corner. These exhibitions, of course, are free to the public, and the novel method always succeeds in attracting an audience.
THREE hundred and fifty amperes of electric current were powerless to affect the body of Bernays Johnson, electrical wizard, shown strapped to the electric chair in which the demonstration took place. The feat was performed at the recent Aero-Radio show in Boston.
MODERN MECHANICS will pay $10 for acceptable photos of every odd use to which old model T Fords have been put. The queer machines shown below are made from old "Tin Lizzies." UP IN Minnesota where the water is sky blue many sportsmen sojourn during the summer. These same sportsmen use motorboats and demand clear, weedless lakes from their hotel and resort keepers.
Tear Gas Makes Weapon of Fountain Pen AN INNOCENT-APPEARING fountain pen containing a charge of tear gas which makes it a most effective weapon has been perfected for the use of cashiers, bank tellers, and others likely, to be objects of robbery. The tear gas is carried in the pen in liquid form and when [...]
MANY times has the cash girl wished that she didn't have to change paper money and run out of change. Realizing this, an English inventor conceived and produced a changing machine. The bank note is placed within a flap on the top of the machine and the lever pressed downward.
BUILT as a test ship to try out new features of airship design, the baby blimp Puritan embodies many new ideas in construction which will be used on giant Zeppelins of the future. The Puritan, photographs of which are shown above, is the first dirigible constructed by the Goodyear-Zeppelin Corporation of Akron, Ohio.
CAN YOU wedge yourself into a packing case only a foot and a half square? The feat sounds impossible, but it is only an incident in the day's work for a Berlin contortionist. The photograph shows him tied into a knot inside his narrow quarters, with his assistant looking on.
by DON GLASSMAN RADIO-MOVIES for everybody is the goal toward which T. Francis Jenkins, Washington Inventor, has been working. Mr. Glassman, author of this article, was present at the first demonstration of Mr. Jenkins' Radiovisor.
A DRAMATIC moment in the history of modern illuminating science is pictured in the photograph below, showing Thomas A. Edison and his assistants testing the first incandescent lamp bulb at Menlo Park, N. J., on October 19, 1879.
CANDY TRUCK IS BUNGALOW ON WHEELS A PERFECT reproduction of a bungalow, complete with porch, window boxes, tile roof and gables, has been mounted on a truck body by a Chicago candy manufacturer to serve the double purpose of delivery and advertising. Both truck and bungalow are finished in white enamel with the tiles of [...]
By WALTER E. BURTON YOUR favorite snapshots can be made into attractive statuettes for your desk or piano, top by following the methods outlined in this article. All that is needed is a piece of cardboard, a saw, and glue. SOMETHING different in photographic decorations can be easily produced by converting pictures of friends, buildings, animals or other objects into attractive "photo-figures."
Back Seat Control Shows Beginners How to Drive COPYING the dual control idea from army training planes, a back seat drive with steering wheel, clutch and brake pedals has been built into an automobile by an enterprising dealer to help beginners learn the fine points of driving their new cars. The photograph shows how the [...]
Five-Story Steel Ball Makes Novel Hospital RESEMBLING a strange machine from another planet, a huge steel ball standing five stories high is being erected at Cleveland, Ohio, so that persons suffering from diabetes may be given treatment under ideal conditions. In the strange spherical “health hotel,” patients will live constantly in an atmosphere of high [...]
by DOUGLAS GRAY TRICKS by which the movie director fakes many of his effects are interestingly explained in this article, written by a man who has been a cameraman and who is well versed in the tricks of the trade. SEEING is believing—unless you happen to see it in the movies! The next time you step into your favorite movie theater to see some million dollar production, don't stop to marvel at the luxurious palaces and castles which you see on the silver screen, because the chances are a hundred to one that they didn't exist at all— except as a thin film of paint which fooled the gullible camera lens so completely that the innocent thing didn't even suspect it was being made fun of!
Everyone wants a girl who’s been frigidized. “Frigidine” is New Beauty Treatment for Women AS A MECHANICAL aid to beauty, the National Beauty and Barbers Supply Dealers Association introduced in a recent convention a new type of light treatment which emits a blue actinic light called “Frigidine.” At present it is estimated that American women [...]
STREAKING low above the ground, a tiny silver plane whines toward the pylon at the National Air Races held at Los Angeles. With speed which seems more comparable to that of a projectile than an airplane she bursts from nowhere and is gone with a whine. It is Ed Heath's "Baby Bullet," smaller than a South American Condor!
WHEN the exhibition-halls in the Kaiserdam, Berlin, opened for the 6th Internationl Bureau Exhibition, the first electric-automatic lottery machine in the world was among the many new inventions. This machine was created in an attempt to remove the human element from gambling devices.
OLD WATER PIPE MADE OF WOOD THIS relic of bygone days in Chicago was recently unearthed when workmen digging the excavation for a power plant came across a length of wood pipe. Made of logs drilled through the center and reinforced by iron bands, the bore was lined with copper sheeting rolled into a tube. [...]
“You know, for kids!” CHECKERBOARD COMBINED WITH CIGARETTE CASE THE NOVEL cigarette case shown below contains not only smoking materials, but also a complete checkerboard and men. The white and black pieces are small pegs which fit into holes in the squares to prevent them from being lost.
By WESTON FARMER A POOR boy from Budapest, who in his early childhood learned about the functions of the human eye in his struggle against defective vision, has invented a system whereby stereoscopic movies may be projected upon the screen and viewed by the audience without the use of the usual visors and colored screens!
He talks, walks, stands, sits down, rolls his eyes and waves his hands, but he isn't a man at all — nothing but a mechanism of steel and aluminum, cables and gears and electric motors! His life-like actions astonished London at a recent scientific exhibition.
AN ORDINARY bicycle with a special baggage support above the front wheel is the equipment used by M. C. Plummer of Portland, Maine, in touring the United States. Mr. Plummer is 70 years old but he covers from 50 to 150 miles every day on his bicycle, depending on the weather and the nature of the country to be traveled.
SIX HUNDRED pairs of shoes in eight hour is the record set by the new shoe manufacturing machine recently exhibited at the Leather Fair in London, shown in the photo below. It resembles a gigantic wheel, the spokes of which contain the electrical devices which control the operation of the mechanism on the wheel's rim.