| Reference number | CLP/1/11/6 |
| Level | Item |
| Title | Diagram, erroneous diagram for Brouncker's paper on the pendulum by Christopher Wren |
| Date | [1669] |
| Description | This appears to be an attempt at reproducing a diagram from William Brouncker’s paper (CLP/1/15) proving that the curve of isochronous descent is a cycloid (proved earlier by Huygens by other means), and that the centre of curvature of every point of the cycloid (evolute) is a cycloid. This diagram contained an error in including a line (with 'x' along it) from D that intersected with fm and DRS, which is not needed for the proof.
Subject: Engineering / Geometry |
| Language | Latin |
| Extent | 1p |
| Format | Diagram |
| Physical description | Ink on paper |
| Access status | Open |
| Related material | DOI: 10.1098/rstl.1669.0069 |
| DOI: 10.1098/rstl.1669.0046 |
DOI: 10.1098/rstl.1669.0018
Printed in 'Philosophical Transactions', vol 4, no 48, p 961 (1669) |
| RBC/3/150 |
| JBO/4/65 |
| Related records in the catalogue | RBO/4/20 |
| CLP/1/11/8 |
| CLP/1/11 |
| CLP/1/1 |
| CLP/1/14 |
Fellows associated with this archive
| Code | Name | Dates |
| NA3503 | Brouncker; William (c1620 - 1684); 2nd Viscount Brouncker; mathematician | c1620 - 1684 |
| NA8062 | Huygens; Christiaan (1629 - 1695); natural philosopher | 1629 - 1695 |
| NA8299 | Wren; Sir; Christopher (1632 - 1723); architect, astronomer, and mathematician | 1632 - 1723 |