Terry Quinn FRS, Defining the kg exhibit at the Royal Society Summer Science Exhibition 2013
1,408 views · Published 21 June 2013 · 2:34 · Indexed 18 October 2026
Channel: The Royal Society · 2013 · Science & Technology
Terry Quinn FRS is a scientist from the Defining the kg exhibit at the Royal Society Summer Science Exhibition 2013. Find out more about this exhibit here: http://sse.royalsociety.org/2013/exhibits/defining-the-kg/ The kilogram will soon be redefined in terms of a constant of nature called the Planck constant. We show a simple apparatus, made essentially of Lego and a loudspeaker assembly, to determine the absolute mass of an object to within about 10% using the proposed new definition.
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