Mass and Moles
Description
Locked up in a vault at the International Bureau of Weights and Measures lies what may be the most important lump of metal in the world. The "master kilogram"-or Le Grand K-was created in the 19th century and is still used as the standard on which every other weight is based. But there is a problem with Le Grand K: what should be its unwavering weight has been changing over time. In this program, Marcus du Sautoy charts the history of the measurement of mass, touching on Newton's contributions, the adoption of the metric system, and the mole, then examines efforts by American and German scientists to redefine mass using a universal constant.
Runtime
59 min
Series
Subjects
Genre
Date of Publication
[2013], c2011
Database
Films on Demand
Direct Link
https://www.remote.uwosh.edu/login?url=https://fod.infobase.com/PortalPlaylists.aspx?wID=102638&xtid=53469
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