| RefNo | AP/12/10/2 |
| Level | Item |
| Title | Unpublished diagrams, perpetual motion machine by Joseph Hopkins |
| Date | 17 November 1826 |
| Description | Figures 1-2 illustrating a close-up of the wheel from Hopkins' perpetual motion machine as well as an overview of the complete apparatus.
Subject: Physics
Received by the Royal Society on 20 November 1826. |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |
| RelatedRecord | AP/12/10 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |