 | Thomas Lund - Hydrostatics - 1864 - 204 pages
...mercury is sustained in it by the pressure of the air on the surface of the mercury in the basin. The BAROMETER is an instrument for measuring the pressure of the Atmosphere. It consists of a glass tube (see Prop, xvin.) of uniform bore, closed at one end, and not less than 33, or 34, inches long. This... | |
 | Thomas Lund - Hydrostatics - 1864 - 188 pages
...mercury is sustained in it by the pressure of the air on the surface of the mercury in the basin. The BAROMETER is an instrument for measuring the pressure of the Atmosphere. It consists of a glass tube (see Prop, xvnI.) of uniform bore, closed at one end, and not less than 33, or 34, inches long. This... | |
 | William Guy Peck - Mechanics - 1870 - 332 pages
...inch, and whose height is the distance from DC to the surface of the water. The Barometer. 184. The barometer is an instrument for measuring the pressure of the atmosphere. It consists of a glass tube, hermetically sealed at one extremity, filled with mercury, and inverted in a basin of that fluid. The... | |
 | Henry Francis Blanford - Physical geography - 1874 - 192 pages
...sea, obstructing their entrance. See page 116. BAROMETER — [Gr. baros, weight ; metron, measure.] An instrument for measuring the pressure of the atmosphere. It consists of a glass tube, somewhat more than 30 inches long, and closed at one end. Having been filled with pure mercury in such... | |
 | William A. Harrison - Geomorphology - 1879 - 178 pages
...light and on meteoric bodies has been recognised at that height. 132. Use of the Barometer.— The barometer is an instrument for measuring the pressure of the atmosphere. It consists of a glass tube about a yard in length, closed at one end and then filled with mercury, and inverted in a cup containing... | |
 | 1879 - 802 pages
...barley, and if carefully made is a pleasant and soothing drink in diseases of the throat and chest. BAROMETER is an instrument for measuring the pressure of the atmosphere. It consists of a stout glass tube about thirty-two inches in length, closed at one end, uniform in calibre, and divided... | |
 | Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 342 pages
...necessarily become less and less as we ascend from the level of the sea. 126. The Barometer. — The barometer is an instrument for measuring the pressure of the atmosphere. It is a Torricellian tube furnished with a convenient case (Figure 85). The vessel of mercury at the bottom... | |
 | Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 544 pages
...necessarily become less and less as we ascend from the level of the sea. 147. The Barometer. — The barometer is an instrument for measuring the pressure of the atmosphere. It is a Torricellian tube furnished with a convenient case (Figure 102). The vessel of mercury at the... | |
 | Henry Percy Smith - English language - 1883 - 542 pages
...Aneroid В.; Marine В. ; Mountain B, ; Siphon B. ; Wheel B. [Gr. ßapos, -weight, ILÍTfov, measure^ An instrument for measuring the pressure of the atmosphere. It consists of a tube containing mercury, about thirty-four inches long, held in avertical position, withitsopenend... | |
 | Joseph Gregory Horner - English language - 1892 - 516 pages
...— A rolling mill where rectangular iron bars are manufactured. Barometer. — An instrument used for measuring the pressure of the atmosphere. It consists of a glass tube containing mercury, and standing in a vessel containing mercury, so that while the atmosphere presses... | |
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The Barometer. A barometer is an instrument for measuring the pressure of the atmosphere. It is made by taking a stout glass tube (Fig. 
