Physics
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phtea..47..110l&link_type=abstract
The Physics Teacher, Volume 47, Issue 2, pp. 110-114 (2009).
Physics
Teaching Methods And Strategies, Secondary School
Scientific paper
Newton's law of gravitation is a central topic in the first-year physics curriculum. A lecturer can go beyond the physical details and use the history of gravitation to discuss the development of scientific ideas; unfortunately, the most recent chapter in this history, general relativity, is not covered in first-year courses. This paper discusses some topics that can be introduced with the judicious use of the dimensionless quantity GM/Rc2: deflection of light by a massive object, perihelion precession, gravitational redshifts, and the Global Positioning System (GPS).
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