Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 166
lastic force of vapor at that tem-perature is the elastic force ofthe amount present in the atmos-phere. Dividing this by the elas-tic force of vapor at the tempera-ture of the atmosphere gives thehygrometric state. 566. The Psychrometer, Fig.184, is used by the United StatesSignal Service to… … CLOUDS AND FOG. 157 and the percentage of moisture is then found in a table.In the one here shown, an index is added to show the rela-tive amount of moisture in the air. Such an instrument iscommonly called the Hygrodeik. 567. Hygrometers of Absorption are made of some sub-stance which absorbs…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
