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actinograph
[ak-tin-uh-graf, -grahf]
noun
a recording actinometer.
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Other 51Թ Forms
- actinographic adjective
- actinography 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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