| RefNo | PP/13/29/2 |
| Previous numbers | PP/45/32 |
| Level | Item |
| Title | Diagram, experimental results by J [John] Hopkinson |
| Date | 1889 |
| Description | A graph showing the results of experiments made 'upon a very soft iron wire' during Hopkinson's investigations into electrical resistance of iron at a high temperature. He describes the graph: 'The abscissae are the temperatures as estimated by the resistance of a copper wire, the ordinates represent the resistance of the iron wire having unit resistance at 20 degrees Celsius.'
Subject: Electricity / Metallurgy
A print of this graph was published in volume 45 of the Proceedings of the Royal Society as 'Electrical resistance of iron at a high temperature'. |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1888.0116 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8063 | Hopkinson; John (1849 - 1898); electrical engineer | 1849 - 1898 |