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Heliostats

  • 1911

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Public Domain

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Top figure is a Foucault heliostat, which reflects the rays of the sun in a horizontal direction. Bottom figure is a two-mirror heliostat, where the second mirror allows the path of the light beam to be thrown in any direction.

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  • 23 cm H x 15 cm W
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Rights Public Domain Mark 1.0
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  • Courtesy of Science History Institute

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  • Page 81

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Cite as

Wm. Gaertner & Company. “Heliostats.” Instruments of Precision Laboratory Apparatus, M-L Catalog. Chicago, Illinois, 1911. https://digital.sciencehistory.org/works/mc87pq27c.

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The Science History Institute recognizes there are materials in our collections that may be offensive or harmful, containing racist, sexist, Eurocentric, ableist, or homophobic language or depictions. The history of science is not exempt from beliefs or practices harmful to traditionally marginalized groups. The Institute is engaged in ongoing efforts to responsibly present and address the evidence of oppression and injustice inextricable from the history of science. If you would like to learn more about our ongoing efforts or if you encounter harmful, inaccurate, or insufficient descriptions, please contact us at digital@sciencehistory.org.