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actinograph
[ ak-tin-uh-graf, -grahf ]
noun
- a recording actinometer.
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Other 51Թ Forms
- ·پ··· [ak-tin-, uh, -, graf, -ik, ak-t, uh, -noh-], adjective
- ·پ·ԴDz·· [ak-t, uh, -, nog, -r, uh, -fee], noun
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51Թ History and Origins
Origin of actinograph1
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Example Sentences
Examples have not been reviewed.
The "Actinograph" number or speed number of a plate in the H. & D. system is found by dividing 34 by a number known as the Inertia, the Inertia, which is a measure of the insensitiveness of the plate, being determined according to the directions laid down by Hurter & Driffield—that is, by using pyro-soda developer and the straight portion only of the density curve.
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