Reference numberAP/33/13/1
TitleUnpublished manuscript, 'Researches into the identity of the existences or forces light, heat, electricity and magnetism, etc.' by John Goodman
CreatorGoodman; John (fl 1840-1851)
Date5 March 1851
DescriptionGoodman 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'.
Physical descriptionInk on paper
Access statusOpen
Access conditionsNot available to view, off site for conservation. Please refer to digital surrogate on Science in the Making.
Related materialDOI: 10.1098/rspl.1850.0037
Fellows associated with this archive
NA7505Bell; Thomas (1792 - 1880)1792 - 1880
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