 It may exist in one of two forms — either as potential or stored-up energy, which is unseen by us, or as visible energy, when it is actually performing work ; but while it changes from one form to another its amount never alters. Thus in Joule's experiment...  A short history of natural science - Side 351af Arabella Burton Fisher - 1879Fuld visning - Om denne bog
 | Sir William Fairbairn - 1856 - 374 sider
...diverse from one another as could be well selected) gave sensibly the same result, viz. that the quantity of heat capable of raising the temperature of a pound of water 1°, is equal to the mechanical power developed by a weight of 770 lbs. (since ascertained to be 772... | |
 | Sir William Fairbairn - 1856 - 450 sider
...from one another as could be well selected) gave sensibly the same result, viz., that the quantity of heat capable of raising the 'temperature of a pound of water 1°, is equal to the mechanical power developed by a weight of 770 Ibs. (since ascertained to be 772... | |
 | 1857 - 1142 sider
...one another as could have been well selected, gave sensibly the same result, viz. that the quantity of heat capable of raising the temperature of a pound of water 1°, is equal to the mechanical power developed by a weight of 770 Ibs. in falling through one perpendicular... | |
 | William Laxton - 1858 - 522 sider
...from one another as could be well selected)! gave sensibly the same result, viz., that the quantity of heat capable of raising the temperature of a pound of water 1* u equal to the mechanical power developed by a weight of 772 Ib. falling through 1 perpendicular... | |
 | Sir William Fairbairn - 1864 - 468 sider
...diverse from one another as could be well selected) gave sensibly the same result, viz. that the quantity of heat capable of raising the temperature of a pound of water 1° is equivalent to the mechanical power developed by a weight of 770 Ibs. (since ascertained to be... | |
 | Sir William Fairbairn - 1864 - 472 sider
...diverse from one another as could be well selected) gave sensibly the same result, viz. that the quantity of heat capable of raising the temperature of a pound of water 1° is equivalent to the mechanical power developed by a weight of 770 Ibs. (since ascertained to be... | |
 | Arabella Burton Buckley - 1876 - 512 sider
...alters. Thus in Joule's experiment the energy stored up in the weight which had been pulled up 772 feet was gradually transformed, as soon as the weight...capable of raising the temperature of a pound of water 1° Fahr. ; while Him showed, on the other hand, that exactly this amount of heat can- be turned back... | |
 | Arabella Burton Buckley - 1881 - 518 sider
...alters. Thus in Joule's experiment the energy stored up in the weight which had been pulled up 772 feet was gradually transformed, as soon as the weight...temperature of a pound of water i° Fahr. ; while Hirn showed, on the other hand, that exactly this amount of heat can be turned back into enough energy... | |
 | John Lovell Robinson - 1888 - 378 sider
...which we name Heat. 319. Dr. Joule's experiments have established the extremely important fact that the amount of heat capable of raising the temperature of a pound of water from 60° to 61° F. corresponds to 772-43 foot-pounds of work. In other words, if 772-43 Ibs. be allowed... | |
 | 1892 - 940 sider
...has probably not been excelled in accuracy by any later exj>eriinenter. According to it the quantity of heat capable of raising the temperature of a pound of water, weighed in vacua, from 60° to 61° Fahrenheit requires for its evolution an expenditure of work represented... | |
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