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- William_Duncan_MacMillan abstract "William Duncan MacMillan (July 24, 1871 – November 1948) was an American mathematician and astronomer.He was born in La Crosse, Wisconsin to D. D. MacMillan, who was in the lumber business, and Mary Jane MacCrea. He had a sister and two brothers; the last would later becoming managers of Cargill Elevator company of Minneapolis.William graduated from La Crosse High School in 1888. In 1889 he attended Lake Forest College, then entered the University of Virginia. Later in 1898 he earned an A.B. degree from Fort Worth University. He performed his graduate work at the University of Chicago, earning a M.A. in 1906 and a Ph.D. in 1908.In 1907, prior to completing his Ph.D., he joined the staff of the University of Chicago as a research assistant in geology. In 1908 he became an associate in mathematics, then in 1909 he began instruction in astronomy at the same institution. His career as a professor began in 1912 when he became an assistant professor. In 1917 the U.S. declared war on Germany, and Dr. MacMillan served as a major in the U.S. army's ordnance department during World War I. Following the war he became associate professor in 1919, then full professor in 1924.He made noted contributions in mathematics and astronomy. He was an early proponent of a theory in the context of solving Olbers' paradox (1922) that would later be called the "tired-light hypothesis" of cosmology.In an Associated Press report Dr. MacMillan speculated on the nature of interstellar civilizations, believing that they would be vastly more advanced than our own. "Out in the heavens, perhaps, are civilizations as far above ours as we are above the single cell, since they are so much older than ours."The crater MacMillan on the Moon is named in his honor.".
- William_Duncan_MacMillan birthDate "1871-07-24".
- William_Duncan_MacMillan birthPlace La_Crosse,_Wisconsin.
- William_Duncan_MacMillan birthYear "1871".
- William_Duncan_MacMillan deathDate "1948".
- William_Duncan_MacMillan deathYear "1948".
- William_Duncan_MacMillan field Astronomy.
- William_Duncan_MacMillan field Mathematics.
- William_Duncan_MacMillan field Physics.
- William_Duncan_MacMillan nationality United_States.
- William_Duncan_MacMillan viafId "111650009".
- William_Duncan_MacMillan wikiPageExternalLink text.html.
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- William_Duncan_MacMillan birthDate "1871-07-24".
- William_Duncan_MacMillan birthPlace "La Crosse, Wisconsin, USA".
- William_Duncan_MacMillan caption "WD MacMilland at Marine-on-St. Croix.".
- William_Duncan_MacMillan dateOfBirth "1871-07-24".
- William_Duncan_MacMillan dateOfDeath "1948".
- William_Duncan_MacMillan field "Astronomy, mathematics and physics".
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- William_Duncan_MacMillan name "Macmillan, William Duncan".
- William_Duncan_MacMillan name "William Duncan MacMillan".
- William_Duncan_MacMillan nationality "American".
- William_Duncan_MacMillan placeOfBirth "La Crosse, Wisconsin, USA".
- William_Duncan_MacMillan residence "USA".
- William_Duncan_MacMillan shortDescription "American astronomer".
- William_Duncan_MacMillan description "American astronomer".
- William_Duncan_MacMillan description "American astronomer".
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- William_Duncan_MacMillan subject Category:American_astronomers.
- William_Duncan_MacMillan subject Category:Lake_Forest_College_alumni.
- William_Duncan_MacMillan subject Category:United_States_Army_officers.
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- William_Duncan_MacMillan comment "William Duncan MacMillan (July 24, 1871 – November 1948) was an American mathematician and astronomer.He was born in La Crosse, Wisconsin to D. D. MacMillan, who was in the lumber business, and Mary Jane MacCrea. He had a sister and two brothers; the last would later becoming managers of Cargill Elevator company of Minneapolis.William graduated from La Crosse High School in 1888. In 1889 he attended Lake Forest College, then entered the University of Virginia. Later in 1898 he earned an A.B.".
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- William_Duncan_MacMillan givenName "William Duncan".
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- William_Duncan_MacMillan name "Macmillan, William Duncan".
- William_Duncan_MacMillan name "William Duncan MacMillan".
- William_Duncan_MacMillan name "William Duncan Macmillan".
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