...investigation of this point has fixed the " mechanical equivalent " of a " unit of heat " — that is, of the quantity of heat which would raise the temperature of a pound of water one degree F. — at 772 pounds lifted one foot temperature and equally expanded by heat under that constant pressure,...

...expressed according to the French standard, 425 kilogrammetres ; that is, he determined that the amount of heat which would raise the temperature of a pound of water one degree Fahrenheit would, if all applied mechanically, be sufficient to lift one pound weight 772 feet high,...

...772 pounds to the height of a foot you have 772 foot-pounds. Now, this quantity of 772 foot-pounds, which would raise the temperature of a pound of water one degree, is termed " the mechanical equivalent of /if at." In lifting a weight from the earth we are overcoming...

...temperature that the same quantity of heat will produce in different substances. The quantity of heat that would raise the temperature of a pound of water one...degree, would raise the temperature of a pound of iron nine degrees, and of a pound of lead thirty-two degrees. And again, the heat requisite to convert into...

...body •when raised or lowered from one temperature to another. Let the unit of heat be that amount of heat which would raise the temperature of a pound of water from 0° to i° C. If H be the specific heat of any substance, it follows from the definition of specific...

...be then suddenly arrested, its temperature will be raised one degree ; and conversely, the heat that would raise the temperature of a pound of water one degree, would, if applied by a steam-engine or otherwise, raise 772 pounds one foot high." " The principle to be educed...

...then suddenly arrested, its temperature will be raised one degree ; and, conversely, the heat that would raise the temperature of a pound of water one degree would (if applied to a steam engine) raise 772 Ibs. one foot high. Jour de Rois (Le). The Epiphany. (Twelfth...

...employed, it is not manifest as sensible heat. Professor Tyndall, in "The Forms of Water," states that " The quantity of heat which would raise the temperature...raise the temperature of a pound of iron ten degrees." Professor Stewart, in " The Conservation of Energy," says, " That peculiar motion which is imparted...

...food is consumed in the body. The unit commonly used in this measurement is the calorie, the amount of heat which would raise the temperature of a pound of water 4° F. The following general estimate has been made for the average amount of potential energy in 1...

...food is consumed in the body. The unit commonly used in this measurement is the calorie, the amount of heat which would raise the temperature of a pound of water 4° P. The following general estimate has been made for the average amount of potential energy in 1...