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ERIC Number: EJ817862
Record Type: Journal
Publication Date: 2008-Nov
Pages: 5
Abstractor: As Provided
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0036-8148
Science 101: How Do Atomic Clocks Work?
Science and Children, v46 n3 p60-64 Nov 2008
You might be wondering why in the world we need such precise measures of time. Well, many systems we use everyday, such as Global Positioning Systems, require precise synchronization of time. This comes into play in telecommunications and wireless communications, also. For purely scientific reasons, we can use precise measurement of time to determine whether or not fundamental constants in the universe appear to be changing over time. Not something that keeps the average person awake at night, but a big deal to theoretical physicists. Before addressing atomic clocks, the author discusses the ways we measure time, in this month's column. (Contains 5 figures.)
National Science Teachers Association. 1840 Wilson Boulevard, Arlington, VA 22201-3000. Tel: 800-722-6782; Fax: 703-243-3924; e-mail: membership@nsta.org; Web site: http://www.nsta.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A