The Challenge of Space
The dream of human flight is as old as man—and the ultimate goal is the stars.
Tom Thumb Planetarium Easily Built from Odds and Ends
By GAYLORD JOHNSON
SIMPLE PROJECTOR MAKES THE CONSTELLATIONS MARCH ACROSS A SCREEN IN YOUR LIVING ROOM
IF YOU ever attended a performance in a large public planetarium, you probably envied the lecturer’s ability to rehearse any part of the drama of the skies at will. Or perhaps you never have witnessed the march of the stars across a giant dome, and are anxious to see a man-made sky in action. At a cost of less than a dollar, you can assemble, from odds and ends, a midget planetarium that will put on a performance right in your own parlor.
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Observatory Built of Junk
Great Earthquake Registered on Homemade Instrument—Horsehairs Make Hygrometer
WHEN slippage along an old fault sent violent earth tremors through southern California recently, it wrote a detailed story upon homemade instruments in an amateur scientist’s laboratory near the center of the disturbance. Upon the black drum of a home-constructed seismograph, it swung a needle, giving its builder, Martin G. Murray, a record of the disaster. Ever since last December, Murray had noticed an increase in the number of tremors. Fom December 16 to 26, his instrument registered fourteen shocks. In March came the quake that left hundreds of buildings in ruins. Read the rest of this entry »
Berlin to New York in less than One Hour!
By HUGO GERNSBACK
IT is a curious failing of human natrue that it is inclined to pooh-pooh new and scientific ideas, particularly if they deal with high speeds. If you had told that master of extravagant imagination, Jules Verne, at the time he wrote his story “Around the World in Eighty Days,” that in 1931 flyers would circle the earth in nine days, he probably would have taken it as a good joke. Nevertheless, facts speak for themselves; and the circumnavigation of the globe has actually been accomplished in nine days. That it will soon be circled in twenty-four hours, no one now doubts.
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ORBITING NEEDLES To Aid Communication
A MAN-MADE ionosphere—composed of millions of tiny metal needles—soon may replace the ionized layer of atmosphere presently used in radio communication. The artificial ionosphere, actually two narrow bands of needles, 3,000 to 6,000 miles from Earth, will make possible for the first time reliable, high-quality and low-cost, television, voice radio and teletype communication between any two points on Earth.
Unlike the natural ionosphere, the bands will stay at the same distance from Earth, have a constant density and the same radio-reflecting qualities undisturbed by storms and sunspots. The system has been developed by the Massachusetts Institute of Technology and the Air Force Air Research and Development Command.
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The Man Who Opened the Door to Space
NO MAN made a greater personal contribution to this fearsome and challenging era of missiles than the late Robert H. Goddard, an ailing, publicity-shy physics professor from Worcester, Mass., who sought only peaceful scientific uses for his epochal inventions.
This month, 14 years after his death at 62, the entire U. S. missile industry will honor him at a conference.
“He was just as surely the father of modern rockets as the Wright brothers were of the airplane,” Henry F. Guggenheim, noted patron of aeronautical research, has declared.
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This shows you how fast technology can change. Only 36 years after this article declared that a trip to the moon was “apparently impossible”, Neil Armstrong actually walked on it.
GETTING More LIGHT On the Moon
By Calvin Frazer
IT IS unwise to dogmatize about the future, and hence a cautious man of science “would hardly make the positive assertion that human beings will never visit the moon, though the difficulties involved in such a journey now appear insuperable. On the other hand it is quite safe to assert that, without leaving his own planet, man will learn much more about the earth’s satellite in days to come than he knows today. This expectation is based upon the remarkable progress accomplished in the study of the moon in recent years.
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Yes, all you need to recreate the universe is a hand-drill, a thumb tack and some oil. Amazing!
Simple Experiment Shows How the Universe Was Formed
By Gaylord Johnson
A TINY globule of machine oil, spinning around in a beaker of wood alcohol, will reenact for you one of the most stupendous dramas of the universe—the formation of a giant spiral nebula.
Photographs of these far-off galaxies of stars made through giant telescopes show that, in spite of minor physical differences, they all have one feature in common: the main structure consists of two curving arms spiraling out from opposite sides of a central mass.
Obviously, this structure is the result of a whirling, centrifugal force. But why should there always be just two arms? That is what this simple demonstration will show you.
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Photo Lens Registers Rays Predating Dinosaurs
BELIEVED by its makers to be the fastest in the world, a new astronomical photographic lens has been used at Mount Wilson Observatory in Pasadena, Calif., for taking pictures of light rays which, scientists claim, left distant stars before dinosaurs trod the earth. In conjunction with the 100-inch reflector at Mt. Wilson, the new lens has photographed spectra of nebulae 30,000 times fainter than the faintest star visible to the unaided eye.
Dr. M. L. Humason, who conducted the Mt. Wilson Observatory tests, reported that the speed of the observatory’s spectrograph was doubled through use of the new lens, which has a speed of F. 0.59. Astronomical data placed the nebulae observed by Dr. Humason as being an estimated distance of 80 million light years from the earth. Through use of the new lens, scientists can now observe faint objects which have previously been deemed hopeless from an astronomical viewpoint, according to Dr. Humason.
How Tiros Photographs the World (including Russia)
The day of the high-flying spy plane may be over. America’s camera-toting satellites will soon be ready to take over security reconnaissance work
By S. DAVID PURSGLOVE
IS America’s first military reconnaissance satellite already orbiting the earth? Tiros I—launched in April—was called a “weather observation satellite.” But it has disturbed top U. S. officials the way weather never could.
Nobody expected the camera-carrying Tiros to do more than demonstrate the feasibility of weather satellites (it actually has come up with significant, although not new, information about weather). But Tiros has embarrassingly done more for military spy satellites than it has for weather satellites.
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After Telstar, what?
The Stay-Putnik
It’s our new Syncom, a satellite that promises a better bounce for world-wide TV and telephone
THE newest U.S. communications satellite—scheduled for launch this month or sooner, in an attempt to top Telstar— can’t be expected to streak across the sky at regular intervals. To the operators of a tracking station, it won’t even seem to be in orbit. Instead, the unnatural instrument package will hang around over the Atlantic, tracing a lazy north-south figure-8 every 24 hours.
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Amazing Turbine-Rocket to Explore Outer Space
By Lew Holt
Prof. R. H. Goddard, famous rocket experimenter, has just patented a remarkable turbine-rocket which makes the age-old dream of traveling in space mechanically possible. Details of this astonishing invention and of other experiments which pave the way for regular lines of ships traveling through the earth’s stratosphere at 1000 miles an hour are presented in this absorbing article.
DOWN in a secluded section of New Mexico a scientist who has for years been experimenting with rockets has succeeded in devising a mechanism combining the principles of the rocket and the turbine, giving the world an entirely new vehicle of transportation capable of traveling hundreds of miles above the earth’s surface— and perhaps, some day, of making a trip to the moon or nearby planets. Read the rest of this entry »
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