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Papers of David Gregory
    Gregory Papers

Edinburgh University Library Special Collections Division

Observata et dicta apud D. Hugenium

Item Summary

Reference Code

GB 0237 David Gregory Dk.1.2.1 Quarto A [4]


06 June 1693

Extent and medium of the unit of description



Name of creator

Gregory | David | 1661-1708 | professor of mathematics and astronomy, University of Edinburgh

Scope and Content

Scope and Content

Notes of a conversation in Holland with Christian Huygens, concerning an 'horologium' to show hours, months, years, and planetary positions. More general mention of the work of numerous other scientists: Notably, Huygens disputes the notion of John Bernoulli (James Bernoulli's younger brother) that the curve of an inflated sail is part-catenary and part-circle, and warns that Newton ought not to be 'deflected' into theology or chemistry.





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