Claude Émile Jean-Baptiste Litre is a fictional character created in 1978 by Kenneth Woolner of the University of Waterloo to justify the use of a capital L to denote litres.
The International System of Units usually only permits the use of a capital letter when a unit is named after a person.[1] The lower-case character l might be difficult to distinguish from the upper-case character I or the digit 1 in certain fonts and styles, and therefore both the lower-case (l) and the upper-case (L) are allowed as the symbol for litre. The United States National Institute of Standards and Technology now recommends the use of the uppercase letter L,[2] a practice that is also widely followed in Canada and Australia.[citation needed]
Woolner perpetrated the April Fools' Day hoax in the April 1978 issue of "CHEM 13 News", a newsletter concerned with chemistry for school teachers. According to the hoax, Claude Litre was born on 12 February 1716, the son of a manufacturer of wine bottles. During Litre's extremely distinguished fictional scientific career, he purportedly proposed a unit of volume measurement that was incorporated into the International System of Units after his death in 1778.[3][4]
The hoax was mistakenly printed as fact in the IUPAC journal Chemistry International and subsequently retracted.[3][5]
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See also
References
- ^ "BIPM – Table 6". Archived from the original on 1 October 2009.
- ^ Non-SI units accepted for use with the SI by the CIPM – NIST.
- ^ a b "Claude Émile Jean-Baptiste Litre". Chem 13 News Magazine. 12 September 2018. Retrieved 30 March 2024.
- ^ "Chem 13 News most memorable hoax". Chem 13 News Magazine. 28 September 2018. Retrieved 30 March 2024.
- ^ Ariadne. 8 October 1984. p. 80. ISSN 0262-4079.
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External links
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This page was last edited on 4 April 2024, at 16:17