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.
A Johnson's actinometer is very useful to time the exposure.
From Photogravure by Henry R. Blaney
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
Another object was, to bring down specimens of air from different altitudes, for analysis; to try the effect of the actinometer at great elevations; and to note the hygrometric condition.
From Chambers's Edinburgh Journal, No. 456 Volume 18, New Series, September 25, 1852 by Robert Chambers
It should register about 40 deg. with an actinometer used to test silver solutions.
From Photogravure by Henry R. Blaney
A selenium actinometer has been described in the Comptes Rendus in a communication from M. Morize, of Rio de Janeiro.
From Scientific American Supplement, No. 484, April 11, 1885 by Various
