Charles Blagden: Difference between revisions
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*[http://www.royalsoc.ac.uk/DServe/dserve.exe?dsqIni=Dserve.ini&dsqApp=Archive&dsqCmd=Browse2.tcl&dsqItem=CB&dsqDb=Catalog&dsqKey=RefNo Blagden Papers at the Royal Society] |
*[http://www.royalsoc.ac.uk/DServe/dserve.exe?dsqIni=Dserve.ini&dsqApp=Archive&dsqCmd=Browse2.tcl&dsqItem=CB&dsqDb=Catalog&dsqKey=RefNo Blagden Papers at the Royal Society] |
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*[http://www.npg.org.uk/live/search/portrait.asp?LinkID=mp56274&rNo=0&role=sit Portrait of Sir Charles Blagden by Mary Dawson Turner (National Portrait Gallery)] |
*[http://www.npg.org.uk/live/search/portrait.asp?LinkID=mp56274&rNo=0&role=sit Portrait of Sir Charles Blagden by Mary Dawson Turner (National Portrait Gallery)] |
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*[http://www.npr.org/blogs/health/2009/07/by_deborah_franklin_lets_hear.html?ft=1&f=103537970 National Public Radio] story about Blagden |
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Revision as of 18:28, 23 July 2009
Charles Blagden | |
|---|---|
 Charles Blagden | |
| Born | 17 April 1748 |
| Died | 1820 Arcueil, France, |
| Nationality | United Kingdom |
| Known for | Studies of perspiration and the freezing point of solutions |
| Awards | Copley Medal |
Sir Charles Brian Blagden FRS (17 April 1748 – 1820) was a British physician and scientist.
Biography
Blagden was born in Wotton-under-Edge, Gloucestershire, in 1748. He studied medicine at Edinburgh, obtaining his M.D. in 1768.
He served as a medical officer in the Army (1776 – 1780) and later held the position of Secretary of the Royal Society (1784 – 1797). Blagden won the Copley Medal in 1788 and was knighted in 1792.
He died in Arcueil, France, in 1820.
Science
In June 1783, Blagden, then assistant to Henry Cavendish, visited Antoine Lavoisier in Paris and described how Cavendish had created water by burning "inflammable air". Lavoisier's dissatisfaction with the Cavendish's "dephlogistinization" theory led him to the concept of a chemical reaction, which he reported to the Royal Academy of Sciences on 24 June 1783, effectively founding modern chemistry.
Blagden experimented on human ability to withstand high temperatures. In his report to the Royal Society in 1775, he was first to recognize the role of perspiration in thermoregulation.
Blagden's experiments on how dissolved substances like salt affected the freezing point of water led to the discovery that the freezing point of a solution decreases in direct proportion to the concentration of the solution, now called Blagden's Law.
Further reading
- Fauque, Danielle M E (2008). "An Englishman abroad: Charles Blagden's visit to Paris in 1783". Notes and records of the Royal Society of London. 62 (4). England: 373–90. ISSN 0035-9149. PMID 19244920.
{{cite journal}}: Check date values in:|year=(help); Cite has empty unknown parameters:|laydate=,|laysource=, and|laysummary=(help); Unknown parameter|month=ignored (help); Unknown parameter|quotes=ignored (help)CS1 maint: year (link) - Heberden, E (1985). "Correspondence of William Heberden, F.R.S. with the Reverend Stephen Hales and Sir Charles Blagden". Notes and records of the Royal Society of London. 39 (2). England: 179–89. ISSN 0035-9149. PMID 11611813.
{{cite journal}}: Cite has empty unknown parameters:|laydate=,|laysource=, and|laysummary=(help); Unknown parameter|month=ignored (help); Unknown parameter|quotes=ignored (help) - Hill, B (1976). "In war and peace Sir Charles Blagden, M.D.Ed., F.R.S. (1748-1820)". The Practitioner. 217 (1297). England: 126–31. ISSN 0032-6518. PMID 792860.
{{cite journal}}: Cite has empty unknown parameters:|laydate=,|laysource=, and|laysummary=(help); Unknown parameter|month=ignored (help); Unknown parameter|quotes=ignored (help) - De Beer, G (1954). "Sir Charles Blagden's first visit to Switzerland". Gesnerus. 11 (1–2): 17–35. ISSN 0016-9161. PMID 13232299.
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External links
- Charles Blagden (1748-1820)
- Blagden Papers at the Royal Society
- Portrait of Sir Charles Blagden by Mary Dawson Turner (National Portrait Gallery)
- National Public Radio story about Blagden