Word: earth
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Dates: during 1930-1939
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Most astronomers say that the galaxies, unimaginably huge, stupendously scattered collections of stars, are running away from Earth and from each other at a rate of many thousands of miles per second. They back up their assertion by catching light from a galaxy in a spectrograph, measuring how far its spectral lines have shifted, in a given period, toward the red or violet end of the spectrum. If the lines redden, that implies the galaxy is receding from the observer, stretching out its light-waves, just as a train whistle lengthens its sound-waves, becomes flatter as it moves into...
Philosopher Hawkesworth argues that no one can tell where any galaxy is now because it takes millions of years for its light to reach astronomers on Earth. Astronomers cannot even locate the galaxy in respect to Earth at the time the light began its journey, since all heavenly bodies dart continuously through space, and Earth's position aeons ago is unknown. Above all, Philosopher Hawkesworth calls it absurd to plot relative positions of the galaxies, since observers can only note where they were at vastly differing times. Coming down to earth himself, he offers a simple illustration...
Weather on earth depends upon radiations from the sun. Dr. Abbot receives in his Washington office telegraph and cable reports of the sun's condition as recorded at three solar observatories which the U. S. maintains on Table Mountain, Calif.; Mount St. Catherine, Egypt; Mount Montezuma, Chile. Last week he told the scientists in Rochester that he expected $200,000 from Congress to erect seven more solar observatories. President Roosevelt had written a longhand letter to Senator Joseph Robinson urging the appropriation, said Dr. Abbot...
This week, on June 19, a sombre strip of darkness fled across one side of the earth as the moon passed in front of the sun. Like a crow's shadow, at dawn the eclipse trailed over Athens, leaped the Golden Horn, spanned the Black Sea, darkened Omsk, Tomsk, Kansk, crossed the Khingan Mountains into Northern Manchukuo, the Japan Sea into the Island of Hokkaido, then passed 2,800 mi. out into the Pacific where it spent itself at sundown...
...military men whom he passed, Major Hume, a medium-tall Kentuckian, pushed through the swinging shutter of his office door, put hat and coat in a wardrobe whose dried panels rattled, sat down at the solid oak desk which all preceding librarians of the greatest medical library on earth have used...