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1617 in science
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==Mathematics== * [[Napier's Bones]], a multiplication device invented by [[John Napier]] (who dies on April 4), is described in his ''[[Rabdology|Rabdologiæ]]'', published in [[Edinburgh]]. * [[Henry Briggs (mathematician)|Henry Briggs]] publishes ''Logarithmorum Chilias Prima'', a modification of Napier's logarithms into [[common logarithm]]s.<ref>{{cite web|title=Henry Briggs|url=http://www.britannica.com/EBchecked/topic/79504/Henry-Briggs|work=[[Encyclopædia Britannica]]|accessdate=2014-09-25}}</ref>
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