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" By repeating this operation a few times, the bulb and a portion of the tube are filled with mercury. The whole is then heated till the mercury boils, thus filling the tube, when the funnel is melted off and the tube hermetically sealed by means of a jet... "
Introductory Course of Natural Philosophy for the Use of Schools and Academies - Page 188
by Adolphe Ganot, William Guy Peck - 1871 - 504 pages
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First Lessons in Physics

Conrad Ludwig Hotze - 1871 - 188 pages
...thermometer, you notice that it consists of a glass tube with a bulb below. Both tube and bulb are closed. The bulb and a portion of the tube are filled with mercury. Above the mercury is a vacuum. The vacuum is obtained by heating the mercury to a very high degree...
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An Elementary Treatise on Heat

William Garnett - 1878 - 236 pages
...be desired to take great care in the construction of the thermometer, this process is repeated until the bulb and a portion of the tube are filled with mercury when at the ordinary temperature, but in general a more expeditious process is adopted. A small portion...
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Introductory Course of Natural Philosophy for the Use of High Schools and ...

Adolphe Ganot - 1881 - 556 pages
...of the air and the smallness of the tube. The bulb is therefore heated, when the air within expands, and a portion escapes in bubbles through the mercury....boils, thus filling the tube, when the funnel is melted ofl' and the tube hermetically sealed by means of a jet of flame urged by a blow-pipe. On cooling,...
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An elementary treatise on heat

William Garnett - 1884 - 274 pages
...be desired to take great care in the construction of the thermometer, this process is repeated until the bulb and a portion of the tube are filled with mercury when at the ordinary temperature; but in general a more expeditious process is adopted. A small portion...
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Introductory Course of Natural Philosophy for the Use of High Schools and ...

Adolphe Ganot - 1888 - 560 pages
...of the air and the smallness of the tube. The bulb is therefore heated, when the air within expands, and a portion escapes in bubbles through the mercury....mercury descends to some point of the tube, as shown in O.ffe. Fig. 193, leaving a vacuum at the upper end. It ™ only remains to graduate it, and attach...
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The Chautauqua Course in Physics

Joel Dorman Steele - 1889 - 366 pages
...quantity of mercury through the tube into the buIb. By repeating this operation a few times, the buIb and a portion of the tube are filled with mercury....mercury descends to some point of the tube, as shown m Fig. 215, leaving a vacuum at the upper end. All that remains to be done is to graduate it, and attach...
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Elementary Lessons in Heat

Samuel Escue Tillman - 1889 - 174 pages
...thermometer is the mercurial. It consists of a capillary glass tube terminating in a bulb or reservoir. The bulb and a portion of the tube are filled with mercury. As the temperature varies the level of the mercury in the tube will rise or fall. These variations...
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A Text-book of the Science and Art of Bread-making: Including the Chemistry ...

William Jago - 1895 - 742 pages
...out of the tube ; the open end is then hermetically sealed by fusing the glass itself. At this stage the bulb and a portion of the tube are filled with mercury, the remainder of the tube being a vacuum, save for the presence of a minute quantity of mercury vapour....
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Natural Philosophy: Lessons in Physics

C. L. Hotze - 1897 - 388 pages
...thermometer, you notice that it consists of a glass tube with a bulb below. Both tube and bulb are closed. The bulb and a portion of the tube are filled with mercury. Above the mercury is a vacuum. This vacuum is obtained by heating the mercury to a very high degree;...
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A Textbook on Mining Engineering, Volume 1

1900 - 744 pages
...determined by the thermometer, which is a glass tube having a small bulb blown upon the lower end. The bulb and a portion of the tube are filled with mercury, the upper end being closed, after boiling the mercury, to expel the air. The tube is attached firmly to...
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