Answer: was held on 26 April 1920 at the Smithsonian Museum of Natural History, between the astronomers Harlow Shapley and Heber Curtis. It concerned the nature of so-called spiral nebulae and the size of the universe; Shapley believed that distant nebulae were relatively small and lay within the outskirts of Earth's home galaxy, while Curtis held that they were in fact independent galaxies, implying that they were exceedingly large and distant.
The two scientists first presented independent technical papers about "The Scale of the Universe" during the day and then took part in a joint discussion that evening. Much of the lore of the Great Debate grew out of two papers published by Shapley and by Curtis in the May 1921 issue of the Bulletin of the National Research Council. The published papers each included counter arguments to the position advocated by the other scientist at the 1920 meeting.
In the aftermath of the public debate, scientists have been able to verify individual pieces of evidence from both astronomers, but on the main point of the existence of other galaxies, Curtis has been proven correct.
<u>Prior to 1950's, the African-Americans were treated extremely unequally in the USA and denied equality through law</u><u> </u><u>Archives are a record of any administrative data, historical information or a collection of documents aimed at providing knowledge about the past through the accounts maintained over an extended period of time.</u>
Answer:
"Back then, the source of food was heavily influenced by the climate and environment.
After a period of time, a group of hunters and gatherers will be forced to move an area because they have no source of food left
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Explanation:
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Answer:
English attention was turned to internal struggles and the encroaching Catholic menace to Scotland and Ireland.
