Matches in DBpedia 2014 for { <http://dbpedia.org/resource/John_A._Eddy> ?p ?o. }
- John_A._Eddy abstract "John Allen "Jack" Eddy (March 25, 1931—June 10, 2009) was an American astronomer who published professionally under the name John A. Eddy but much of the content referencing him can be found under his nickname Jack which he preferred to use. In 1976 Dr. Eddy published a landmark paper in Science titled "The Maunder Minimum" where, using the Nineteenth Century works of Edward W. Maunder and Gustav Spörer, he identified a 70-year period from 1645 to 1715 as a time when solar activity all but stopped. In making the case for the anomaly, he gathered and interpreted data from a wide variety of sources, including first-hand accounts from extant historical observations of the Sun going back to the telescopic observations of Galileo and other contemporary scientists of the 17th and early 18th centuries; from historical reports of the aurora borealis observed in past centuries in Europe and the New World; from visual observations of sunspots seen with the unaided eye at sunrise and sunset in dynastic records from the Orient; from existing descriptions of the eclipsed Sun; and from measurements of carbon-14 in dated tree-rings. In the last of these, which can be used as a proxy indicator of solar activity, he found evidence of other similar periods of solar quiescence in the distant past, the most recent an even longer 90-year span, from about 1460 until 1550, which he named the Spörer Minimum. Both the Maunder and Spörer minima fell during the coldest parts of the Little Ice Age, which suggested a meaningful connection between the longer term behavior of the Sun and of the Earth’s mean surface temperature. In advancing the theory that the Sun is a variable star Eddy observed: "It has long been thought that the Sun is a constant star of regular and repeatable behavior. Measurements of the radiative output, or solar constant, seem to justify the first assumption, and the record of periodicity in sunspot numbers is taken as evidence of the second. Both records, however, sample only the most recent history of the Sun."".
- John_A._Eddy almaMater United_States_Naval_Academy.
- John_A._Eddy almaMater University_of_Colorado_Boulder.
- John_A._Eddy award National_Academy_of_Sciences.
- John_A._Eddy birthDate "1931-03-25".
- John_A._Eddy birthPlace Nebraska.
- John_A._Eddy birthPlace Pawnee_City,_Nebraska.
- John_A._Eddy birthPlace United_States.
- John_A._Eddy birthYear "1931".
- John_A._Eddy citizenship United_States.
- John_A._Eddy deathDate "2009-06-10".
- John_A._Eddy deathPlace Arizona.
- John_A._Eddy deathPlace Tucson,_Arizona.
- John_A._Eddy deathPlace United_States.
- John_A._Eddy deathYear "2009".
- John_A._Eddy doctoralAdvisor Gordon_Newkirk.
- John_A._Eddy field Solar_physics.
- John_A._Eddy influencedBy Edward_Walter_Maunder.
- John_A._Eddy influencedBy Eugene_Parker.
- John_A._Eddy influencedBy Gordon_Newkirk.
- John_A._Eddy influencedBy Martin_Schwarzschild.
- John_A._Eddy nationality United_States.
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- John_A._Eddy almaMater United_States_Naval_Academy.
- John_A._Eddy almaMater University_of_Colorado_Boulder.
- John_A._Eddy birthDate "1931-03-25".
- John_A._Eddy birthPlace Nebraska.
- John_A._Eddy birthPlace Pawnee_City,_Nebraska.
- John_A._Eddy birthPlace United_States.
- John_A._Eddy caption "John A. Eddy".
- John_A._Eddy citizenship "United States".
- John_A._Eddy dateOfBirth "1931-03-25".
- John_A._Eddy dateOfDeath "2009-06-10".
- John_A._Eddy deathDate "2009-06-10".
- John_A._Eddy deathPlace "Tucson, Arizona, United States".
- John_A._Eddy doctoralAdvisor Gordon_Newkirk.
- John_A._Eddy field Solar_physics.
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- John_A._Eddy influences Edward_Walter_Maunder.
- John_A._Eddy influences Eugene_Parker.
- John_A._Eddy influences "Gordon Newkirk, Martin Schwarzschild,".
- John_A._Eddy name "Eddy, John Allen".
- John_A._Eddy name "John Allen Eddy".
- John_A._Eddy nationality "United States".
- John_A._Eddy placeOfBirth Nebraska.
- John_A._Eddy placeOfBirth Pawnee_City,_Nebraska.
- John_A._Eddy placeOfDeath "Tucson, Arizona".
- John_A._Eddy prizes "Arctowski Medal National Academy of Sciences, 1987".
- John_A._Eddy shortDescription "American astronomer".
- John_A._Eddy description "American astronomer".
- John_A._Eddy description "American astronomer".
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- John_A._Eddy subject Category:National_Academy_of_Sciences_laureates.
- John_A._Eddy subject Category:University_of_Colorado_alumni.
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- John_A._Eddy comment "John Allen "Jack" Eddy (March 25, 1931—June 10, 2009) was an American astronomer who published professionally under the name John A. Eddy but much of the content referencing him can be found under his nickname Jack which he preferred to use. In 1976 Dr. Eddy published a landmark paper in Science titled "The Maunder Minimum" where, using the Nineteenth Century works of Edward W.".
- John_A._Eddy label "John A. Eddy".
- John_A._Eddy label "John Allen Eddy".
- John_A._Eddy label "John Eddy".
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