atomic clock. The New Dictionary of Cultural Literacy, Third Edition. 2002

Reference > The New Dictionary of Cultural Literacy > 19. Physical Sciences and Mathematics

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The New Dictionary of Cultural Literacy, Third Edition. 2002.

atomic clock


The most accurate clock available. Time is measured by the movement of electrons in cesium atoms. The standard second is now defined by measurements on an atomic clock.	1

The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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