Lynde, Carleton John, b. 1872, Gilbert, A. C. (Alfred Carlton), 1884-1961, A.C. Gilbert Company · New Haven, CT : A.C. Gilbert Co. · leaf 60
ric pressure. Arrange a No. 6 tube as in 1, Fig. 97, and suck air out at thetop. Does the water run uphill into your mouth? Hold your finger over the top and lift the tube out of thepail (2). Does the water remain in the tube? Fill a bottle withwater to overflowing, insert a No. 2 tube into your… … FIG. 98 WATER DRIVEN UP TUBE BY ATMOSPHERE Repeat (3) with the bottle half full of air(4). Do you find that you can now suek partoi the water out of the bottle, and all of itif you admit air? The why of itThe atmosphere which surrounds the earthexerts a pressure of 15 pounds per squareinch on…
Glass blowing and working
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