Gravity
Subject
Subject Source: Library of Congress Subject Headings
Scope Note: Created For = NAHSTE
Found in 10 Collections and/or Records:
Correspondence of Sir Archibald Geikie: American geologists, 1878-1907
Sub-Series
Identifier: Coll-74/13/1
Scope and Contents
The Correspondence of Sir Archibald Geikie: American geologists sub-series consists of:
- 67 letters and postcards, alphabetically arranged (1878-1907).
Dates:
1878-1907
Letter to Sir Charles Lyell from James Croll, 4 January 1866
Item
Identifier: Coll-203/1 folio(s) 590-592
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the effect of the build up of ice during the glacial epoch upon the level of the ocean and his belief that the level of the ocean would not be lowered by the accumulation of ice as the level of the water would adjust itself to the altered centre of gravity of the earth, 4 January 1866.
Dates:
4 January 1866
Letter to Sir Charles Lyell from James Croll, 6 January 1866
Item
Identifier: Coll-203/1 folio(s) 593-594
Scope and Contents
Letter to Sir Charles Lyell from James Croll regarding modifications he has made to his Submergence Theory which held that the level of the ocean would not be lowered by the accumulation of ice due to Lyell passing on some calculations as to the amount of water needed from the oceans to form an ice-sheet of sufficient mass to alter the earth's centre of gravity. He encloses a letter to the Reader to put the matter straight and asks for Lyell's approval. 6 January 1866.
Dates:
6 January 1866
Letter to Sir Charles Lyell from James Croll, 16 February 1866
Item
Identifier: Coll-203/1 folio(s) 605
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the extent to which the centre of gravity of the earth would be displaced by ice caps 2000 feet and 3000 feet thick, 16 February 1866.
Dates:
16 February 1866
Letter to Sir Charles Lyell from James Croll, 17 February 1866
Item
Identifier: Coll-203/1 folio(s) 606-607
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning calculations of Charles Moore's which Lyell had sent to him and discussing his own calculations which show how much the centre of gravity of the Earth would have been displaced by the weight of ice-caps, 17 February 1866.
Dates:
17 February 1866
Libri quedam mathematici Amstel: 1693, 1693
Item
Identifier: Coll-33/Quarto A [27]
Scope and Contents
A scrawled list of partial book titles in David Gregory's hand and at least one other. On reverse is a line of text in Dutch, and possibly Gregory's signature. The smaller sheet is unlabelled, but appears to go with the larger one; its titles concern mostly gravity.
Dates:
1693
Observ: Eclipsos Lunaris Oxon 19 Octr 1697 et [Mercury] in [the Sun] 24 Oct 1697, October 1697, with 2 apparently attached documents from 17041693
Item
Identifier: Coll-33/Quarto A [28]
Scope and Contents
Two straightforward records of planetary eclipses, but meant, on palaeographic evidence, to be kept with a draft and a fair copy of a subsequent Philosophical Transactions of the Royal Society article [Vol. XXIV, No. 293, for September-October 1704, p1704] about the Cassini curve, a model of how a periodic comet probably orbits. Folding and fading of these documents suggest that they were inserted not long after David Gregory generated his index of Quarto A (which he drew up around 1700)....
Dates:
October 1697, with 2 apparently attached documents from 17041693
Papers of David Gregory
Fonds
Identifier: Coll-33
Scope and Contents
The papers of David Gregory consist of:
bound manuscripts of mathematical and personal papers by both David Gregory and James Gregory
bound manuscripts Lectiones Mechanicae Sive Geometria de Motu parts 1-4 (1689-1690)
bound manuscripts of treatises on mathematics and astronomy (1683-1694)
bound manuscripts Notae in...
Dates:
1652-1706
Torricellii Prop: 8 de Motu Projectorum, 1684-1688
Item
Identifier: Coll-33/Quarto A [46]
Scope and Contents
A study probably relating to part 4 of Gregory's mechanics lectures in Edinburgh. It discusses the theories of Evangelista Torricelli, famous for his " De motu gravium naturaliter descendentium et projectorum, (1644).
Dates:
1684-1688
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