| RefNo | PT/20/8/5 | 
| Level | Item | 
| Title | Plate, brass or steel rod with sphere at centre of oscillation by unknown artist | 
| Date | [1832] | 
| Description | Diagram showing a brass or steel rod with a sphere screwed onto the rod's centre of oscillation.
  Subject: Physics
  Published in Philosophical Transactions as 'On the correction of a pendulum for the reduction to a vacuum: together with remarks on some anomalies observed in pendulum experiments'.
  Read 31 May 1832. | 
| Extent | 1p | 
| Format | Diagram | 
| PhysicalDescription | Ink diagram on paper | 
| AccessStatus | Open | 
| RelatedMaterial | DOI: 10.1098/rspl.1830.0069 | 
| DOI: 10.1098/rstl.1832.0020 | 
| RelatedRecord | PT/20/8 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA6486 | Baily; Francis (1774 - 1844); astronomer | 1774 - 1844 |