 | John Tyndall - 1868 - 560 páginas
...same expenditure of power was in all cases the same. (38) In this way it was proved that the quantity of heat necessary to raise one pound of water one degree Fahrenheit in temperature, is equal to that generated by a pound weight, falling from a height of 772 feet against... | |
 | John Tyndall - 1872 - 234 páginas
...This problem has been accurately solved by experiment. It would require in round numbers 1,000 times the amount of heat necessary to raise one pound of water one degree in temperature. 385. But the quantity of heat which would raise the temperature of a pound of water... | |
 | m. emile saigey - 1873 - 272 páginas
...raised to the height of a meter. The English equivalent of this term is " foot-pound." The quantity of heat necessary to raise one pound of water one degree Fahrenheit in temperature, is competent to raise a weight of seven hundred and seventy-two pounds a foot high.... | |
 | Émile Saigey - 1873 - 282 páginas
...raised to the height of a meter. The English equivalent of this term is " foot-pound." The quantity of heat necessary to raise one pound of water one degree Fahrenheit in temperature, is competent to raise a weight of seven hundred and seventy-two pounds a foot high.... | |
 | John Tyndall - 1881 - 572 páginas
...same expenditure of power was in all cases the same. (38) In this way it was proved that the quantity of heat necessary to raise one pound of water one degree Fahrenheit in temperature, is equal to that generated by a pound weight, falling from a height of 772 feet against... | |
 | Stephen Roper - 1888 - 702 páginas
...(2-2046215 pounds) of water one degree Centigrade, or from 0° C. to 1° C. In this country and in England the amount of heat necessary to raise one pound of water one degree Fahrenheit, or from 32° Fah. to 33° Fah., is taken as the unit of heat. For calculations involving quantity of... | |
 | Robert Galloway - 1888 - 378 páginas
...that the quantity of heat generated by the same amount of force is fixed and invariable' The quantity of heat necessary to raise one pound of water one degree Fahrenheit in temperature, it has been proved, is equal to that generated by a pound weight, falling from a height... | |
 | Stephen Roper - 1889 - 422 páginas
...(2.2046215 pounds) of water one degree Centigrade, or from 0° C. to 1° C. In this country and in England the amount of heat necessary to raise one pound of water one degree Fahrenheit, or from 32° Fah. to 33° Fah., is taken as the unit of heat. .028i2 13.44 equals tt lbs. avoird. 1... | |
 | George Henry Baker - 1889 - 142 páginas
...heat generated by the same amount of force, is fixed and invariable. In this way it was proved that the amount of heat necessary to raise one pound of water one degree (1°) in temperature, is equal to that generated by a pound weight falling from a height of 772 feet... | |
 | American Street Railway Association - 1894 - 1042 páginas
...necessary to heat an eighteen or twenty foot car in zero weather. What I mean by a British thermal unit is the amount of heat necessary to raise one pound of water one degree Fahrenheit, indicated here as F5. TU If we require 20,000 British thermal units in zero weather, when the outside... | |
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... one pound of water one degree Fahrenheit is called a British thermal unit. 
