Photometer
Hawkins' Electrical Dictionary · 1915 · p. 3
—An instrument for measuring the intensity of light, and, especially, to compare the relative illuminating powers of different sources of light.
Bu kavram başka kaynaklarda da geçiyor
The American Illustrated Medical Dictionary (1913)
Chamber's Twientieth Century Dictionary (1908)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
The Optical Dictionary (1904)
The Student's Medical Dictionary (1896)
Chamber's Etymological of the English Language (1895)
An Illustrated Encyclopedic Medical Dictionary (1894)
The Standart Electrical Dictionary (1892)
An Illustrated Dictionary of Words Used In Art and Archealogy. (1883)
Dictionary of Science, Literature and Art (1854)
Dictionary of Science, Literature and Art (1842)
Electro-photometer
—
Hawkins' Electrical Dictionary (1915)
Polarizing Spectro-photometer
—
Hawkins' Electrical Dictionary (1915)
Spectro-photometer
—
Hawkins' Electrical Dictionary (1915)
Wedge-photometer
—
The Optical Dictionary (1904)
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