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The Physics Teacher -- April 2000 -- Volume 38, Issue 4, pp. 238

Easily constructed mini-sextant demonstrates optical principles

Garet G. Nenninger

Department of Electrical Engineering, University of Washington, Box 352500, Seattle, Washington 98195-2500

OpenURL
Portland State University Library
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An easily constructed optical instrument for measuring the angle between the Sun and the horizon is described. The miniature sextant relies on multiple reflections to produce multiple images of the sun at fixed angles away from the true Sun.

© 2000 American Association of Physics Teachers

KEYWORDS and PACS

Keywords

student experiments, teaching, geometrical optics, marine systems, ray tracing, navigation, sextant, Fresnel reflection, optical mirror systems, celestial navigation, optical instrument construction

PACS

  • 01.50.My

    Demonstration experiments and apparatus

  • 01.50.Pa

    Laboratory experiments and apparatus

  • 42.15.Dp

    Wave fronts and ray tracing

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/10.1119/1.880516


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