 | Dmitry Ivanovich Mendeleyev - 1891 - 640 ページ
...detonating gas is thus heated up to a temperature of 132°. When its volume becomes constant it is measured, the height of the - column of mercury in the tube above the level of the mercury in the cylinder being noted. Let this volume equal v ; it will therefore contain... | |
 | George S. Newth - 1892 - 390 ページ
...the position of the tube is so adjusted that the gases occupy the space down to the third graduation. The height of the column of mercury in the tube above the level of that in the trough is indicated by a marker which also works up and down the upright support... | |
 | Henry Enfield Roscoe - 1893 - 540 ページ
...this air is then accurately ascertained by reading off with a telescope the number of the millimeter divisions on the tube to which the mercury reaches,...are also read off. A quantity of pure hydrogen gas more than sufficient to combine with all the oxygen present is now added ; and the volume of this gas,... | |
 | Sir Henry Enfield Roscoe - 1893 - 730 ページ
...this air is then accurately ascertained by reading off with a telescope the number of the millimeter divisions on the tube to which the mercury reaches,...are also read off. A quantity of pure hydrogen gas more than sufficient to combine with all the oxygen present is now added ; and the volume of this gas,... | |
 | Paul Cook Nugent - 1902 - 636 ページ
...other inserted in a reservoir o( mercury R. The tube being exhausted of air and the reservoir open, the height of the column of mercury in the tube above the surface of the mercury in the reservoir will be a measure of the pressure of the atmosphere. The height... | |
 | Maxwell Hall - 1904 - 60 ページ
...inches in the tube, leaving a vacuum at the upper end ; and upon measurement it will be found that the height of the column of mercury in the tube above the surface of the mercury in the bowl will be about 30 inches, provided that the experiment be made near... | |
 | Frederick Charles Irwin - 1915 - 130 ページ
...cms. long is closed at one end, filled with mercury and inverted in a dish of mercury. We next measure the height of the column of mercury in the tube above the level in the dish. This height varies from day to day. It is mm. today. This column of mercury is supported... | |
 | Sir William Cecil Dampier Dampier - 1924 - 302 ページ
...due to the column of mercury above it. The pressures anywhere at the same level must be equal, and so the height of the column of mercury in the tube above the mercury in the trough is a measure of the pressure of the atmosphere. If the pressure of the atmosphere... | |
 | Sir William Cecil Dampier Dampier - 1924 - 302 ページ
...due to the column of mercury above it. The pressures anywhere at the same level must be equal, and so the height of the column of mercury in the tube above the mercury in the trough is a measure of the pressure of the atmosphere. If the pressure of the atmosphere... | |
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... divisions on the tube to which the mercury reaches, whilst the height of the column of mercury in the tube above the trough, together with that of the barometer, and the temperature of the air, are also read off. 
