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John Southern (engineer)

释义

References

{{Use dmy dates|date=April 2018}}{{Use British English|date=April 2018}}John Southern (c.1758–1815) was an English engineer, son of Thomas Southern of Derbyshire.^[1] He co-invented the indicator diagram with his employer, James Watt, in 1796.^[2] Southern became a partner of the firm of Boulton & Watt in 1810.^[1] The use of the diagram was kept as a trade secret for a generation, only becoming public in the 1830s.^[3]

References

1. ^¹{{cite book|author=H. W. Dickinson|title=James Watt: Craftsman and Engineer|url=https://books.google.com/books?id=54fqzPz4nWAC&pg=PA131|date=31 October 2010|publisher=Cambridge University Press|isbn=978-1-108-01223-2|pages=131–}}
2. ^{{cite book |title=Thing knowledge: a philosophy of scientific instruments |last=Baird |first=Davis |page=170 |year=2004 |publisher=University of California Press |isbn=978-0-520-23249-5 }}
3. ^{{cite book|author=M. Norton Wise|title=The Values of Precision|url=https://books.google.com/books?id=g8uvNtuPhgUC&pg=PA231|date=March 1997|publisher=Princeton University Press|isbn=0-691-01601-1|page=231}}

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