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Sunday, September 29th, 2024
the Week of Proper 21 / Ordinary 26
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Bible Dictionaries
Photoheliometer

Webster's Dictionary

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(n.) A double-lens instrument for measuring slight variations of the sun's diameter by photography, utilizing the common chord of two overlapping images.

Bibliography Information
Webster, Noah. Entry for 'Photoheliometer'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/photoheliometer.html. 1828.
 
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