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The Physics Teacher -- May 2004 -- Volume 42, Issue 5, pp. 296

Just What Did Archimedes Say About Buoyancy?

Erlend H. Graf

SUNY, Stony Brook, NY

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“A body immersed in a fluid is buoyed up with a force equal to the weight of the displaced fluid.” So goes a venerable textbook1 statement of the hydrostatic principle that bears Archimedes' name. Archimedes' principle is often proved for the special case of a right-circular cylinder or rectangular solid by considering the difference in hydrostatic forces between the (flat, horizontal) upper and lower surfaces, and then generalized by the even more venerable “it can be shown…” that the principle is in fact true for bodies of arbitrary shape.

© 2004 American Association of Physics Teachers

KEYWORDS and PACS

Keywords

hydrostatics, history, force, physics education

PACS

History
Online Apr 2004

PUBLICATION DATA

ISSN

0031-921X (print)  

Publisher

$abstract.society.value is a Member of CrossRef American Association of Physics Teachers

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1119/1.1737965

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