Paper, 'Recalescence of iron' by J [John] Hopkinson
Reference number: PP/13/28
Date: 1889
Description
Hopkinson writes: 'Professor Barrett has observed that if an iron wire be heated to a bright redness and then be allowed to cool, that this cooling does not go on continuously, but that after the wire has sunk to a very dull red it suddenly becomes brighter, and then continues to cool down. He surmised that the temperature at which this occurs is the temperature at which the iron ceases to be magnetisable.'
Annotations in pencil and ink throughout.
Subject: Metallurgy
Received 7 March 1889. Read 21 March 1889.
A version of this paper was published in volume 45 of the Proceedings of the Royal Society as 'Recalescence of iron'.
- Reference number
- PP/13/28
- Earliest possible date
- 1889
- Physical description
- Ink and graphite pencil on paper
- Page extent
- 3 pages
- Format
- Typescript
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Citation
John Hopkinson, Paper, 'Recalescence of iron' by J [John] Hopkinson, 1889, PP/13/28, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pp_13_28/paper-recalescence-of-iron-by-j-john-hopkinson, accessed on 08 September 2024
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Related Publications
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IV. Recalescence of iron External link, opens in new tab.
Date: 31st December 1889
DOI: 10.1098/rspl.1888.0115
Hierarchy
This item is part of:
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Scientific papers published in the Proceedings of the Royal Society volume 45, 1889
1889 Reference number: PP/13
Related Fellows
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John Hopkinson
Author
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Proceedings Papers
Dates: 1882 - 1894
The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.View collection