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Saturday, September 21st, 2024
the Week of Proper 19 / Ordinary 24
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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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