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Jun, 1930
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Aug, 1930
Introduce Me To 10 Ladies And I Pay You Cash For Your Time
Here's an utterly new, easy way for honest men and women to make money, and also the strangest offer we ever heard of. Just introduce me to 10 ladies and say 20 magic words and this million-dollar company will pay you cash. No need to sell a single thing. This is the revolutionary new plan of the famous business genius— C. W. Van De Mark—the wizard who has already put more than 25,000 men and women on the road to prosperity.
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Big Dealings on California Beach as Beauties Use Mammoth Cards
Big Dealings on California Beach as Beauties Use Mammoth Cards MAMMOTH playing cards suitable for outdoor use have recently become the fad with society beauties on the California beaches. The photo shows a poker game in progress with paper plates used as chips. The cards are waterproof and very durable, and while a trifle too […]
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Postal flyers Succeed Against Odds in "Bringing" Mail Through
AT NOON, May 15, 1918, four pilots stood beside their planes ready to take off on the first official attempt to carry mail by air. That day was the beginning of a thing that has spread, not only through the United States, but into all of North America. Since that day millions of dollars have been spent, planes have been wrecked, and pilots killed, but the air mail goes on and it stands today as one of the great affairs of the nation.
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YOU CAN Make Your Own 4th of July Fireworks
by FREDERICK O. SCHUBERT THIS month's chemical section is dedicated to that noble and glorious purpose of celebrating the Fourth of July in noisy fashion—and with cannon crackers and colored fire that can safely be made in your own lab. However, before plunging into a pile of recipes and formulas it is necessary to warn you fellows to be extremely careful in preparing these mixtures.
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Putting Greens Protected From Milady's High Heels
A GOLF course, unadorned by a sprinkling of the fair sex, would be a dreary place indeed; the ladies to whom appearance means everything, would not be quite so chic without those dainty shoes equipped with dagger-like high heels; but a putting green free from those cute little heel prints just the right size to hold a golf ball snugly would be a golfer's paradise.
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Interesting Experiments with Air Currents
by C. FRANCIS JENKINS - Famous Inventor You've seen flags flutter in the breeze, watched airplanes fly, read of buildings which collapsed from the inside out in tornadoes—but do you understand the cause of these phenomena? Mr. Jenkins, famous for his inventions in the field of television and inventor of the movie projector, has devised a number of fascinating experiments to test the behavior of air currents. Try them for yourself, as explained below, and you'll have a better knowledge of why airplanes fly and why gliders glide.
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Air Buoy Marks Location of Field
Air Buoy Marks Location of Field Suggested as a means of enabling fog-bound pilots to locate the position of landing fields, the floating air buoy above has won the approval of veteran airmen. A plane flying above the cloud or fog strata sights the captive balloon bearing the name of the airport, learns of conditions […]
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Crashing PLANES for the Movie
by DICK GRACE - the world's most famous movie stunt man FOREWORD Dick Grace is by long odds the world's most famous movie plane crasher. He has cracked-up 34 planes intentionally, and lived to spend the money. The reasons why he has been able to climb alive out of these wrecks he tells in this thrill-packed article. Crashing planes for movie shots, such as Grace did in "Wings," "Lilac Time," "The Flying Circus," and many other films, is done scientifically, by physics and mathematics. How he does it Grace explains in this personal story written expressly for Modern Mechanics' readers, and his thrilling narrative is told with the same gusto and cool assurance that makes him the most famous stunt flyer in the world. Dick Grace is also author of the book "Squadron of Death," an amazing autobiography telling his own story and that of countless other stunt men.
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How Your Senses Fool You
by Sam Brown YOUR senses do fool you! Almost any doctor would tell almost any man that his five major senses were in perfect working order. Yet, take that same man and his five senses—seeing, hearing, smelling, tasting and feeling—and you will find that each of the senses, although usually pronounced perfectly sound, is subject to little quirks and twists that would seem to indicate that it is not the infallible indicator it is supposed to be.
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NOVEL IDEAS Keep Pace with AVIATION'S ADVANCE
THERE is no industry — American or foreign—that is receiving as much attention from creative minds today as aviation. That is amply demonstrated by the remarkable number of new ideas that daily find their way into the patent or copyright divisions at Washington. And the list of the things that inventors feel the industry requires is almost unending. From new-fangled ways of bolting a spar to complete designs and models of planes, everything is included.
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The Story of the Match ~ a Great World Industry
Modern methods and modern machinery have trans formed the making of matches from a dangerous, disease-producing business into one of the world's great industries. Here we have the story of how science has made the present-day match possible. by BEVERLY BARNES HOW many matches have you used today? You should, according to America's premier match making company, have struck seven, if you got the daily share allotted to every man, woman and child in the United States. In other words it takes 840,000,000 matches a day to supply the fire making needs of a nation of 120,000,000 people. That's at the rate of 306 billion, 600 million for normal years of 365 days.
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Building AMERICA'S Largest Plane
Alfred W. Lawson, pioneer figure in aviation, who built the first commercial cabin passenger plane and the first tri-motored ship with heated cabin and sleeping berths, reveals to Modern Mechanics readers his plans for a 125-passenger air liner weighing 50 tons which he is now building in his New Jersey factory.
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Diminutive "Super-Ear" for Deaf
Diminutive “Super-Ear” for Deaf A HIGHLY sensitive detector of sound known as the “Super-ear,” a device which operates on a new and unique principle, has recently been put on the market for the relief of deafness. The “Super-ear,” one method of the use of which is shown in the photo at the left, is adaptable […]
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Orange Ribbon Locates Airplanes Forced Down in Woods
Orange Ribbon Locates Airplanes Forced Down in Woods IN CASE OF FORCED LANDING THE PILOT RELEASES 800 FEET OF WIDE ORANGE RIBBON WHICH RESTS ON THE TREE TOPS SHOWING THE PLANE’S LOCATION TO SEARCHING AIRMEN,THOUGH CONCEALED BY TREES.
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Chicago to Have World's Most Powerful Aerial Beacon
A TWO billion candle power high intensity arc light, the biggest lamp ever mounted as an aerial beacon, soon will be projecting its beam into the sky from a tower atop one of Chicago's tallest skyscrapers. The light, the gift of its inventor, Elmer A. Sperry, famous inventor of the high intensity arc, the gyroscopic compass, gyroscopic helms-man, is to be named the "Lindbergh Beacon," as a permanent memorial to the colonel's famous one-man flight to Paris.
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Side Car Attached to Tricycle Adds Fun for the Children
I love the name of the sidecar. Nothing says fun like a Kiddy Tub. Side Car Attached to Tricycle Adds Fun for the Children THE use of side cars and rumble seats is now being extended to children’s vehicles, thus cutting down the expense of parents by making one vehicle serve two children. A recently […]
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Light Beam Stands Guard on Prison to Quell Jailbreak
A LIGHT beam as a prison deadline—a beam that when interrupted by a felon bent upon making his get-away operates a machine gun pointed directly at the victim —is the latest addition to prison jailbreak safeguards. The apparatus, consisting of a beam transmitter which shoots a small invisible ray along the prison wall, and a beam receiver which picks up and records any breaks in the light, and at the same time fires a machine gun, is being installed in many prisons housing intractable criminals.
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The Mechanics of Baseball
By Babe Ruth The Sultan of Swat! The Bustin' Babe! The most colorful player the game has ever seen! In these terms we habitually think of Babe Ruth. In this article he reveals many of the secrets that have made him the game's most valuable player. IT SEEMS strange to talk or write of baseball mechanics. Yet the term is a good one, for we who play baseball are as much mechanicians as the engineers who develop airplanes, the men who operate engines or the mechanic who tinkers with an automobile in a garage. The only difference is in the engine.
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Scientific Explanation of the Mexican Jumping Bean
THE Mexican jumping bean, that playful little legume which many suppose to be nature's attempt to furnish a concentrated meat and vegetable ration, needs no longer puzzle the uninitiated, for science has laid bare the secrets of its life.
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Inflating Toy Balloons With Gas From the City Mains
GAS from the city mains can be used to inflate toy balloons with the simple inflating device shown in the drawing above. Gas as it comes out of the ordinary jet has only a pressure of a couple of pounds behind it, which is quite insufficient for inflating purposes.
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