Word: shapleys
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Last Saturday, F. H. Crawford, professor of Physics, talked on a century of Progress in Physic over WBZ. Next Saturday evening, August 12, Harlow Shapley will give a condensed version of the talk which he will deliver at the Observatory Thursday evening. Professor Kirtley Mather will give the Geology lecture on August 19, H. E. Bent will discuss Chemistry during the last century on August 19, H. E. Bent will discuss Chemistry during the last century on August 26, and Professor MacDonald will speak on Biology on September...
There are approximately 30,000,000,000 stars in this home circle, arranged in what Dr. Shapley called a discoidal system, the general shape of this star mass being that of a thin watch, or of two plates held together face to face. Studies of the last year indicate that the diameter of our galaxy is 200,000 light years, a light years, a light year being 6,000,000,000,000 miles...
...been established by foreign astronemers, according to Shapley, that this star mass turns around and around like a grindstone, completing a circle once every 300,000,000 years. The earth is a distance of 50,000 light years from the hub of this wheel of stars. The hub or center of gravity of the mass is in the southern constellation Sagittarius, where a dense swarm of stars is located...
...billions stars is these parts, however, form only a very trifling parts of the universe, as it is now unfolding before the researches of Shapley and others engaged in taking soundings in from stars which are traveling outwardly, or away from the earth, are broadened; and this effect is used as a speedometer in telling how fast the stars were traveling...
...broadened--the greater the distance the greater the broadening. The wave lengths of light spread. The natural partiality of astronmers for the home galaxy formerly exaggerated its importance, but it is now known to be merely one of many thousands of equally interesting galaxies. In the past year, Shapley said, several thousand new galaxies have been discovered at Harvard alone...