Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q2504742> ?p ?o }
- Q2504742 subject Q13275604.
- Q2504742 subject Q4386716.
- Q2504742 subject Q6508841.
- Q2504742 subject Q6563334.
- Q2504742 subject Q8341368.
- Q2504742 subject Q9407847.
- Q2504742 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."".
- Q2504742 almaMater Q559549.
- Q2504742 almaMater Q736674.
- Q2504742 award Q270794.
- Q2504742 birthDate "1931-03-25".
- Q2504742 birthPlace Q1553.
- Q2504742 birthPlace Q30.
- Q2504742 birthPlace Q958076.
- Q2504742 citizenship Q30.
- Q2504742 deathDate "2009-06-10".
- Q2504742 deathPlace Q18575.
- Q2504742 deathPlace Q30.
- Q2504742 deathPlace Q816.
- Q2504742 doctoralAdvisor Q21597950.
- Q2504742 field Q2043698.
- Q2504742 influencedBy Q177186.
- Q2504742 influencedBy Q21597950.
- Q2504742 influencedBy Q503360.
- Q2504742 influencedBy Q60891.
- Q2504742 nationality Q30.
- Q2504742 thumbnail John_A._Eddy.jpg?width=300.
- Q2504742 wikiPageExternalLink solar.htm.
- Q2504742 wikiPageExternalLink books?lr=&as_brr=0&q=inauthor%3A%22J+A+Eddy%22&btnG=Search+Books.
- Q2504742 wikiPageExternalLink sp402.htm.
- Q2504742 wikiPageExternalLink ilws_publications.htm.
- Q2504742 wikiPageExternalLink scholar?as_q=&num=100&btnG=Search+Scholar&as_occt=any&as_sauthors=%22J+A+Eddy%22&as_allsubj=all.
- Q2504742 wikiPageExternalLink eddy1.htm.
- Q2504742 wikiPageExternalLink 22910.html.
- Q2504742 wikiPageExternalLink 0470092963.
- Q2504742 wikiPageWikiLink Q1060893.
- Q2504742 wikiPageWikiLink Q1063512.
- Q2504742 wikiPageWikiLink Q11063.
- Q2504742 wikiPageWikiLink Q1133697.
- Q2504742 wikiPageWikiLink Q11700.
- Q2504742 wikiPageWikiLink Q12078.
- Q2504742 wikiPageWikiLink Q125928.
- Q2504742 wikiPageWikiLink Q127834.
- Q2504742 wikiPageWikiLink Q131252.
- Q2504742 wikiPageWikiLink Q13275604.
- Q2504742 wikiPageWikiLink Q13371.
- Q2504742 wikiPageWikiLink Q1340198.
- Q2504742 wikiPageWikiLink Q14811107.
- Q2504742 wikiPageWikiLink Q1553.
- Q2504742 wikiPageWikiLink Q166564.
- Q2504742 wikiPageWikiLink Q167186.
- Q2504742 wikiPageWikiLink Q16932857.
- Q2504742 wikiPageWikiLink Q170754.
- Q2504742 wikiPageWikiLink Q17205.
- Q2504742 wikiPageWikiLink Q1738904.
- Q2504742 wikiPageWikiLink Q174736.
- Q2504742 wikiPageWikiLink Q177186.
- Q2504742 wikiPageWikiLink Q1814176.
- Q2504742 wikiPageWikiLink Q18575.
- Q2504742 wikiPageWikiLink Q190530.
- Q2504742 wikiPageWikiLink Q192517.
- Q2504742 wikiPageWikiLink Q192864.
- Q2504742 wikiPageWikiLink Q193294.
- Q2504742 wikiPageWikiLink Q2043698.
- Q2504742 wikiPageWikiLink Q205653.
- Q2504742 wikiPageWikiLink Q21.
- Q2504742 wikiPageWikiLink Q21597950.
- Q2504742 wikiPageWikiLink Q2277190.
- Q2504742 wikiPageWikiLink Q2297940.
- Q2504742 wikiPageWikiLink Q23548.
- Q2504742 wikiPageWikiLink Q254651.
- Q2504742 wikiPageWikiLink Q270794.
- Q2504742 wikiPageWikiLink Q28271.
- Q2504742 wikiPageWikiLink Q30.
- Q2504742 wikiPageWikiLink Q307.
- Q2504742 wikiPageWikiLink Q335272.
- Q2504742 wikiPageWikiLink Q34675.
- Q2504742 wikiPageWikiLink Q36747.
- Q2504742 wikiPageWikiLink Q40358.
- Q2504742 wikiPageWikiLink Q40609.
- Q2504742 wikiPageWikiLink Q4386716.
- Q2504742 wikiPageWikiLink Q458393.
- Q2504742 wikiPageWikiLink Q46.
- Q2504742 wikiPageWikiLink Q463435.
- Q2504742 wikiPageWikiLink Q4773684.
- Q2504742 wikiPageWikiLink Q4854157.
- Q2504742 wikiPageWikiLink Q49385.
- Q2504742 wikiPageWikiLink Q503360.
- Q2504742 wikiPageWikiLink Q5286494.
- Q2504742 wikiPageWikiLink Q532759.
- Q2504742 wikiPageWikiLink Q559549.
- Q2504742 wikiPageWikiLink Q5754874.
- Q2504742 wikiPageWikiLink Q581776.
- Q2504742 wikiPageWikiLink Q5973845.
- Q2504742 wikiPageWikiLink Q60891.
- Q2504742 wikiPageWikiLink Q60902.
- Q2504742 wikiPageWikiLink Q6243.
- Q2504742 wikiPageWikiLink Q6508841.
- Q2504742 wikiPageWikiLink Q6563334.
- Q2504742 wikiPageWikiLink Q6582994.