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DTSTART;TZID=Europe/London:20241009T180000
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DTSTAMP:20240926T084258Z
CREATED:20240906T094829Z
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SUMMARY:'Measuring the Metre' by Dr Terry Quinn FRS
DESCRIPTION:This event is both an in-person and on-line event. No need to register – just come along or click this zoom link to join on-line. \nThe great revolution in metrology began with the redefinition of the Metre in terms of the wavelength of light. From antiquity\, practical dimensional measurement standards had all been based upon material artifacts and measurement of time on the rotation of the Earth.  \nAll of that changed in 2018 when the base units of the SI were redefined in terms of fixed values of a set of fundamental and atomic constants.  \nThe lecture will explain how practical measurement standards can be obtained from such definitions. \nAbout the Speaker\nDr Terry Quinn graduated from Southampton University in physics in 1959 and then moved to Oxford for his D. Phil in what was then the Metallurgy Department. His thesis supervisor was Professor William Hume-Rothery FRS.  \nIn 1962\, Dr Quinn joined the National Physical Laboratory in Teddington where he worked on high-temperature measurement and standards. In 1967/68 he spent a year at the then National Bureau of Standards in Washington.  \nDr Quinn moved to the BIPM in Paris in 1977 as Deputy Director becoming Director in 1988. He was Lady Margaret Distinguished Visiting Fellow at the Cavendish Laboratory Cambridge in 1984/84.  \nDr Quinn retired from the BIPM in 2003. He was elected a Fellow of the Royal Society in 2002.
URL:https://www.newcomen.com/activity/measuring-the-metre-by-dr-terry-quinn-frs/
LOCATION:LONDON  Alan Baxter Gallery\, 75 Cowcross St\, Clerkenwell\, London\, EC1M 6EL
CATEGORIES:Newcomen Online Lecture,UK - London Branch
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