Inductive elementary physical science with inexpensive apparatus, and without laboratory equipment (1897)
Bailey, Frederick H. (Frederick Harold), 1865- · Boston, D. C. Heath & Co. · leaf 85
xp. 78. A little care is necessary in order to get thetube exactly centred over the bottom hole,and near enough to it to work well. Itshould be as near as possible without enter-ing the hole. To give the necessary incli-nation to the tube, crowd the rub-ber stopper in more on one sidethan the… … Exp. 78. AIR EXPERIMENTS. 51 Inferences. 1. What must be the condition of the airin the Apparatus before water can rise into it ? See Auxs.30 and 31. 2. What produces that condition ? 3. How ? Exp. 79. Blow hard through the tube held in a hori-zontal position, with wooden ball heldan inch or more…
Physics
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