. Locomotive engineering : a practical journal of railway motive power and rolling stock . pective legs will be proportioned to thevacuum produced, or, in other words, willdepend on the removal of air from themercury in one leg of the tube. If it werepossible to get a perfect vacuum in oneleg of the tube, the atmospheric pressurein the opposite leg would force the mer-cury to a height of inches, or above and below line --/ /> in , where a pump is shown attached to oneleg, while the opposite leg is left open tothe atmosphere. The whole subject is into a qu
. Locomotive engineering : a practical journal of railway motive power and rolling stock . pective legs will be proportioned to thevacuum produced, or, in other words, willdepend on the removal of air from themercury in one leg of the tube. If it werepossible to get a perfect vacuum in oneleg of the tube, the atmospheric pressurein the opposite leg would force the mer-cury to a height of inches, or above and below line --/ /> in , where a pump is shown attached to oneleg, while the opposite leg is left open tothe atmosphere. The whole subject is into a question of unbalanced forces, and the work done by the pump isgiven back by the atmosphere in raisingthe mercury through a distance of In Fig. 3 the mercury is shown 3inches above the line A B, in the legnext to the pump, and 3 inches below itin the leg open to the atmosphere;the sum of this movement is equal to 6inches of mercury, and since a cube inchof it weighs pounds at 32 Fahr., 6inches will weigh = prove this we will multiply by.
Size: 1608px × 1554px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
