| RefNo | AP/33/13 |
| Level | File |
| Title | Unpublished paper, 'Researches into the identity of the existences or forces light, heat, electricity and magnetism, etc.' by John Goodman |
| Creator | Goodman; John (fl 1840-1851) |
| Date | 5 March 1851 |
| Description | Goodman describes the effects that were produced on a moderately sensitive galvanometer by exposure to the Sun’s rays, and which were observed by him during a period of four months, commencing on 14 November 1850. The instrument is described as consisting of 46 turns of covered copper wire, 1/25th of an inch in diameter. The helix is blackened with ink at its southern extremity, and has a single magnetised sewing needle suspended by about sixteen inches of silken fibre in its centre.
Includes one figure in the text of the magnetic needle. Annotations in ink throughout.
Subject: Physics
Received 7 March 1851. Read June 19 1851. Communicated by Thomas Bell.
Written by Goodman in Manchester [England].
Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 6 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'Researches into the identity of the existences or forces, light, heat, electricity and magnetism'. |
| Extent | 12p |
| Format | Drawing |
| Manuscript |
| PhysicalDescription | Ink on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| AccessConditions | Not available to view, off site for conservation. Please refer to digital surrogate on Science in the Making. |
| RelatedMaterial | DOI: 10.1098/rspl.1850.0037 |
| RelatedRecord | RR/2/74 |
| RR/2/75 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA7505 | Bell; Thomas (1792 - 1880) | 1792 - 1880 |