https://www.science-story-telling.eu/fileadmin/content/projekte/storytelling/biografien/biografien-eng/joule-biografie-gb.pdf
heat could be produced directly by a falling weight. He arranged for the falling weight to drive paddle wheels in a calorimeter, churning up the water. This led to a slight, but measurable rise in temperature [...] from his scientific findings, to commission a statue of Joule. Sculpted by Alfred Gilbert, this now stands opposite that of his former tutor, John Dalton, in the entrance foy- er of Manchester Town Hall.
https://www.science-story-telling.eu/fileadmin/content/projekte/storytelling/zip/zip-eng/joule-1.zip
attached Fig 7: Joule’s paddle wheel apparatus, Joule 1872 Background for stories concerning energy 7 Storytelling Teaching Model: http://science-story-telling.eu Figure 9: Joule’s paddle wheel, horizontal cut [...] with 6 l of water. Inside the vessel there was an axis with brass paddles to mix the water. Additionally, there were also fixed paddles that helped to produce a larger friction in the water – meanwhile [...] Equivalent of Heat". In this paper Joule described in full detail his experiments with the famous paddle-wheel. This paper did not only include the data Joule got from his experiments and the calculation
https://www.science-story-telling.eu/fileadmin/content/projekte/storytelling/geschichten/geschichten-eng/joulehartearbeit-story-gb.pdf
with 6 l of water. Inside the vessel there was an axis with brass paddles to mix the water. Additionally, there were also fixed paddles that helped to produce a larger friction in the water – meanwhile [...] reinserted the thermometer into the water and waited for the reading to stabilize whilst the workman was standing behind him, breathing hard after the work he had carried out. Joule read the instrument and noted
https://www.science-story-telling.eu/fileadmin/content/projekte/storytelling/zip/zip-eng/rumford.zip
attached Fig 7: Joule’s paddle wheel apparatus, Joule 1872 Background for stories concerning energy 7 Storytelling Teaching Model: http://science-story-telling.eu Figure 9: Joule’s paddle wheel, horizontal cut [...] Equivalent of Heat". In this paper Joule described in full detail his experiments with the famous paddle-wheel. This paper did not only include the data Joule got from his experiments and the calculation [...] cut. Joule 1872 Figure 8: Joule’s paddle wheel, lateral cut. Joule 1872 to, or removed from, the axis of the frictional ap- paratus. This apparatus is represented in figure 8 (left) vertically and in figure
https://www.science-story-telling.eu/fileadmin/content/projekte/storytelling/zip/zip-eng/joule-2.zip