actinometer
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The actinometer indicated an exposure of thirty seconds where in good light one would be right.
From Scientific American Supplement, No. 492, June 6, 1885 by Various
A Johnson's actinometer is very useful to time the exposure.
From Photogravure by Henry R. Blaney
A very suitable instrument for timing the exposure of carbon tissue is Sawyer's actinometer.
From Photogravure by Henry R. Blaney
It should register about 40 deg. with an actinometer used to test silver solutions.
From Photogravure by Henry R. Blaney
The mystery was not a new type of infernal machine as they imagined but merely a home-made actinometer!
From Sixteen Months in Four German Prisons Wesel, Sennelager, Klingelputz, Ruhleben by Henry Charles Mahoney
