Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 125
gs isthe height of the barometer column. U Fig. 83. Instead of a U-shaped tube, a straight tubeis frequently used to contain the mercury in measuringthe pressure of the atmosphere. 116 PHYSICAL SCIENCE. Experiment 11. Take a glass tube, about one centimetre in diameter and80 centimetres long,… … Fig. 84. 1. What takes place when the finger is removed ? Explain thereason. See Experiment 7, page 110. When a straight glass tube is used as a barometer,the cistern which contains the mercury has usuallya flexible leather bottom which can be moved upor down by a screw C. A scale is attached to…
Physics
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