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.
When you get home, the first thing to do is to get hold of a paint box and paint the underside of the glass of your actinometer to match the darkened paper.
From Scientific American Supplement, No. 492, June 6, 1885 by Various
The actinometer of M. Violle is, in principle, a sphere of copper, blackened externally, and having inside a thermometric apparatus which registers some distance away.
From Sounding the Ocean of Air by A. Lawrence Rotch
A Johnson's actinometer is very useful to time the exposure.
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 actinometer consists of a large cylindrical thermometer bulb, with a scale considerably lengthened, so that minute changes may be easily seen.
From A Treatise on Meteorological Instruments Explanatory of Their Scientific Principles, Method of Construction, and Practical Utility by Henry Negretti
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