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1643 in science
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{{Short description|none}} <!-- "none" is preferred when the title is sufficiently descriptive; see [[WP:SDNONE]] --> {{Year nav topic5|1643|science}} {{Science year nav|1643}} The year '''1643 in [[science]]''' and [[technology]] involved some significant events. ==Exploration== * January 21 β [[Abel Tasman]] discovers the [[Tonga]] [[archipelago]]. * December 25 β Captain William Mynors of the [[British East India Company]] discovers [[Christmas Island]].<ref>{{cite web|url=http://www.environment.gov.au/parks/christmas/culture-history/island-history.html |title=Christmas Island history |publisher=Australian Government, Department of Sustainability, Environment, Water, Population and Communities |accessdate=2011-12-09 |date=2011-11-02 |url-status=dead |archiveurl=https://web.archive.org/web/20120304001240/http://www.environment.gov.au/parks/christmas/culture-history/island-history.html |archivedate=2012-03-04 }}</ref> ==Meteorology== * [[Evangelista Torricelli]] invents the [[Mercury (element)|mercury]] [[barometer]].<ref>{{cite book|chapter=Introduction|first=Evangelista|last=Torricelli|title=Lezioni Accademiche|location=Florence|year=1715}}</ref> ==Births== * January 4 ([[Old Style and New Style dates|NS]]) β [[Isaac Newton]], English [[physicist]] (died [[1727 in science|1727]]) * [[Jean de Fontaney]], French [[Jesuit]] [[mathematician]] and [[astronomer]] (died [[1710 in science|1710]]) * [[Pierre Dionis]], French [[surgeon]] and [[anatomist]] (died [[1718 in science|1718]])<ref>{{BNF|12462161b}}</ref> ==Deaths== * April 9 β [[Benedetto Castelli]], Italian mathematician (born [[1578 in science|1578]]) * November 3 ** [[John Bainbridge (astronomer)|John Bainbridge]], English astronomer (born [[1582 in science|1582]]) ** [[Paul Guldin]], [[Swiss people|Swiss]] mathematician and astronomer (born [[1577 in science|1577]]) * [[Sophia Brahe]], [[Danish people|Danish]] astronomer (born [[1556 in science|1556]]) * [[Gasparo Berti]], Italian mathematician, astronomer and physicist (born c. 1600) * [[Walter Warner]], English scientist (born [[1563 in science|1563]]) ==References== {{reflist}} [[Category:1643 in science| ]] [[Category:17th century in science]] [[Category:1640s in science]]
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