RefNo | CLP/20/61 |
Level | File |
Title | Paper, 'Of a telescope stand set up in the yard of Gresham College' by Robert Hooke |
Date | 17th century |
Description | Relates how a telescope stand was set up in the middle of the quadrangle at Gresham College. Includes Hooke's sketch of a 36 foot refractor telescope by Richard Reeve of Long Acre in a tube of 40 feet mounted in the courtyard of Gresham College, the tube being braced to prevent it bending under its own weight, and suspended from a mast by a system of pulleys and raised or lowered by a winch at the base. The suspension of the pulley could move around the mast, according to the direction required of the telescope. A rest for the eye end resembles an artist's easel, while at the foot of the page is a series of micrometers designed by Christopher Wren.
Hooke writes in the accompanying account as though it is a shared resource: there had been contributions to its design by different people in his circle and it was used by other astronomers as well as himself.
Subject: Astronomy |
Extent | 9p |
Format | Manuscript |
PhysicalDescription | Ink on paper |
Digital images | View item on Science in the Making |
Notes | One figure 'of a way to manage a long telescope' has been removed from the volume and is in an envelope on bay 31, adjacent to volumes |
AccessStatus | Open |
RelatedRecord | CLP/20/61/1 |
CLP/20/61/2 |
CLP/20/61/3 |
Fellows associated with this archive
Code | PersonName | Dates |
NA8242 | Hooke; Robert (1635 - 1703); natural philosopher | 1635 - 1703 |