Manpower Flight Greatest April Fool Joke
PHOTOGRAPHS of a man flying through the air by his own power, the dream of scientists for centuries, completely fooled outstanding U. S. newspapers recently.
Captions on the photographs, coming from Germany, explained that Pilot Erich Kocher took off with a pair of rotor wings strapped to his chest. Kocher supposedly blew into a box which converted the carbon dioxide of his breath into fuel to operate the rotors. The turning rotors developed a vacuum ahead pulling the man through the air.
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Scientist’s New Theories May Aid in Forecasting Weather Conditions
THEORIES which may explain the formation of the earth’s surface features, and eventually make it easy to predict both storms and earthquakes, have been evolved after years of research by Halbert P. Gillette, retired engineer and former instructor in science at Columbia University.
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PLAYGROUNDS IN THE SKY
Here is MI’s hold plan to fight juvenile delinquency and get kids off the street.
THE scene is your city on a sticky, sweltering twilight in midsummer. Lights are beginning to wink on and kids are starting to gather in the streets after the evening meal.
A few years ago this was the danger hour in your city. You remember it well—the nightly muggings would begin about now and young girls would be afraid to venture out alone. Beatings were commonplace and gang wars, fiercely fought with knives and zip-guns, were a frequent occurrence. But things are different now.
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So, why couldn’t the counterfeiter buy one of these?
Spuriscope tells the difference between a counterfeit bill and a genuine piece of money. The user dials the serial number which is on the currency and there appears on the machine an alphabetical series designation. If the bill in question does not bear the same letters, it’s counterfeit. Accurate Molding Corp., Long Island City, N. Y. makes it.
Vision Perpetual Motion In This Rubber Band Engine
AN ENGINE run only by a single rubber band—does it have possibilities of perpetual motion?
Many who saw it on exhibit at the Hall of Science in Chicago’s Century of Progress Exposition believe it has. The engine, shown on the left, obtains its energy from heat directed on the rubber band. Many persons visioned the probability of substituting solar heat for the electrical heaters used in the exhibit. However, perpetual motion is an impossibility as the machine would run only during life of band.
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I hope they don’t have rats at that bank, because it sounds like just about anything would set that alarm off.
New Burglar Alarm Set Off by Vibrations of Heartbeat
THERE have been numerous inventions to foil bank bandits in their hold-up attempts but the latest one is the most original. The vibrations of the human heart-heat set off an alarm bell.
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