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Horology

 Subject
Subject Source: Library of Congress Subject Headings
Scope Note: Created For = NAHSTE

Found in 4 Collections and/or Records:

Memoranda et observata in Batavia 1693 Maio, 17 May 1693

 Item
Identifier: Coll-33/Quarto A [31]
Scope and Contents Batavia is a seventeenth-century cognomen for the Netherlands, to which David Gregory went in the spring of 1693, mostly to talk science with Christiaan Huygens. This document is a list of some books he wished to buy for himself and for friends back home, if he could find them. They covered Palladius, Thucydides, Dionysius of Halicarnassus, Erasmus, "all I can find of the Roman Authors at Amst[erdam]", and others. On the reverse is a list of topics he wished to discuss when he finally sat down...
Dates: 17 May 1693

Notanda D.J. phys. et math. Lond: Martio 1693 cum Fatio, 31 March 1693

 Item
Identifier: Coll-33/Quarto A [37]
Scope and Contents Notes to an extended conversation with Fatio de Duillier, fellow enthusiast of Newtonian science at Oxford, and especially important to Gregory between December 1691 and May 1694, when he was cut off from direct contact with Sir Isaac Newton, whom he had offended in a published commentary on his 'abrumpent' mathematical series. Topics include magnetic attraction, refraction and colour, and movement of solids through fluid, with anecdotal remarks by de Duiller about ships, tides, and the French....
Dates: 31 March 1693

Observata et dicta apud D. Hugenium, 06 June 1693

 Item
Identifier: Coll-33/Quarto A [4]
Scope and Contents 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.
Dates: 06 June 1693

Tractata cum Hugenio - Hage Com. Maio 1693 (from index), 16 May 1693-18 May 1693

 Item
Identifier: Coll-33/Quarto A [8]
Scope and Contents Conversation notes pertaining to a meeting with Christiaan Huygens in the Netherlands. Entry for 16 May 1693, following a jotted chapter citation (see note) and a squib about the glass used in microscopes, is an agenda for the discussion topics, which are to include foliate curves, Huygens' dioptrics (laws of refraction), compound 'astroscopes', gravitational theory of (his Oxford colleague from Switzerland,) Fatio de Duillier, a celestial-motion machine, a new pendulum for Huygens'...
Dates: 16 May 1693-18 May 1693