Subject Source: Library of Congress Subject HeadingsScope Note: Created For = NAHSTE
Found in 2 Collections and/or Records:
Identifier: Coll-33/Quarto A 
Scope and Contents A transcription of Christiaan Huygen's argument that because stars' observed radii are so insensibly small, the diameter of the earth's orbit relative to the stars' position is also insensible, and thus the parallax measurement, which ought to prove or disprove the Copernican layout of the heavens, is useless.
Dates: June 1693
Series — Box Dk.1.2: Series Coll-33/Quarto A; Series Coll-33/Folio B; Series Coll-33/Folio D; Series Coll-33/Folio E
Identifier: Coll-33/Quarto A
Scope and Contents The papers of David Gregory in Quarto A consist of: 107 manuscript papers and an index, relating to: theoretical physics, including optics, especially treatises on refraction and colour, on mechanics, specifically on velocity, gravitation, centrifugal and centripetal force, and the movement of solids through fluid, and an occasional thought on magnetic attraction. Applied physics, considering ships, tides, and...