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ERIC Number: EJ956436
Record Type: Journal
Publication Date: 2011-Nov
Pages: 3
Abstractor: As Provided
Reference Count: 1
ISBN: N/A
ISSN: ISSN-0031-9120
How Big Is the Earth? A Calculation beyond Your Horizon
Kibble, Bob
Physics Education, v46 n6 p685-687 Nov 2011
A consequence of the curvature of the Earth is that distant ships apparently disappear over the horizon. This article shows how you can use a simple photograph to help students obtain a reasonable estimate of the size of the Earth using little more than the mathematics of Pythagoras. (Contains 5 figures.)
Descriptors: Photography, Computation, Mathematics Education, Visual Stimuli, Theories
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail: info@ioppubusa.com; Web site: http://journals.iop.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: N/A