Diagram of the circle of the globe
Date
1690-91
Creator
Unknown, Artist
Object type
Archive reference number
Manuscript page number
p344
Material
Dimensions
height (page): 363mm
width (page): 237mm
width (page): 237mm
Subject
Description
This diagram depicts Robert Hooke's measurements and calculations regarding the circle of the globe. This image appears in 'Memoires of Naturall Remarques in the county of Wiltshire, to which are annexed observables of the same kind in the county of Surrey and Flynt-shire' by John Aubrey, FRS. This manuscript is a transcript of Aubrey's original made by B. G. Cramer, Clerk to the Royal Society, in 1690-91.
Transcription
bce, the Cirkle of the Globe of the Earth ab, the semidiameter of the Earth.
acd, the secant of the Angle at a cd, the height of the Falcon above the Earth bd, the Tangent, which is the visual line from [smudge] to b.. and the like from d to e
But Refraction does carry the Prospect farther. See Mr Hookes Micrographie de hoe.
The Eye at 1 foot above the Levell of the water will by a straight Ray touch the Surface at 6472 foot distant at 4 foot high at twice that distance: at 9 foot high at thrice that distance, very near. - Mr. Robert Hook RS Socius.
Transcribed by the Making Visible project
acd, the secant of the Angle at a cd, the height of the Falcon above the Earth bd, the Tangent, which is the visual line from [smudge] to b.. and the like from d to e
But Refraction does carry the Prospect farther. See Mr Hookes Micrographie de hoe.
The Eye at 1 foot above the Levell of the water will by a straight Ray touch the Surface at 6472 foot distant at 4 foot high at twice that distance: at 9 foot high at thrice that distance, very near. - Mr. Robert Hook RS Socius.
Transcribed by the Making Visible project
Object history
By John Aubrey, FRS. This manuscript is a transcript of Aubrey's original manuscript (1685). It was transcribed by B. G. Cramer, Clerk to the Royal Society, at the behest of the Society in 1690-91.
At page 67 is inserted a map of a navigable passage from Bristol to London, engraved by Thomas Jenner in 1668, with the arms of the borough. Six leaves of additional matter are inserted at page 276, and four more at page 304.
At page 67 is inserted a map of a navigable passage from Bristol to London, engraved by Thomas Jenner in 1668, with the arms of the borough. Six leaves of additional matter are inserted at page 276, and four more at page 304.
Related fellows
John Aubrey (1626 - 1697, British) , Antiquary
Robert Hooke (1635 - 1703, British) , Natural Philosopher
Robert Hooke (1635 - 1703, British) , Natural Philosopher
Associated place