"Degree fahrenheit" Quotes from Famous Books
 ... mechanical equivalent of heat, in British units, was the energy necessary to raise the temperature of one pound of water from 32 deg. F. to 33 deg. F., but Rankine defines it as the heat necessary to increase the temperature of one pound of water one degree Fahrenheit from that of maximum density, or from 39 deg. F. to 40 deg. F. For ordinary practice it is immaterial which of these definitions is used, for the errors resulting therefrom are much less than those resulting from ordinary observations. But when the value is to be determined by ...
— Scientific American Supplement, No. 647, May 26, 1888 • Various
... amount of heat generated by a measured amount of work; and as the result of all his experiments (with very slight corrections made since by means of more exact apparatus), we now know that 778 foot pounds of work produce heat enough to raise one pound of water one degree Fahrenheit; or stated in the metric system, 427 kilogram meters of work will produce a calorie ...
— Q. E. D., or New Light on the Doctrine of Creation • George McCready Price
... the sun's rays ceases. Then, however, commences a temperature from an entirely different cause, one which evidently has its source in the interior of the earth, and which regularly increases as we descend to greater and greater depths, the rate of increment being about one degree Fahrenheit for every sixty feet; and of this high temperature there are other evidences, in the phenomena of volcanoes and thermal springs, as well as in what is ascertained with regard to the density of the entire mass of the earth. This, it will be remembered, is four and a half times the ...
— Vestiges of the Natural History of Creation • Robert Chambers |
