. Inductive elementary physical science with inexpensive apparatus, and without laboratory equipment . Fig 7 ings thus supplied with water does it escape most rapidly, andwhy ? Write about this subject as fully as you can, and seeif you can apply the same principle to explain country water-supply by wells or springs. (See Aux. 4.) Explain water-supply as shown in Fig. 7. WATER EXFERlMEnTS. 23 Note. — Exps. 20 and 21 require a high point of it is not convenient to arrange a hook directly above eaeli pupilsdesk or table, a few hooks and strings should be provided where pupilscan
. Inductive elementary physical science with inexpensive apparatus, and without laboratory equipment . Fig 7 ings thus supplied with water does it escape most rapidly, andwhy ? Write about this subject as fully as you can, and seeif you can apply the same principle to explain country water-supply by wells or springs. (See Aux. 4.) Explain water-supply as shown in Fig. 7. WATER EXFERlMEnTS. 23 Note. — Exps. 20 and 21 require a high point of it is not convenient to arrange a hook directly above eaeli pupilsdesk or table, a few hooks and strings should be provided where pupilscan go in turn or in very small groups, to experiment. Usually hooksmay be inserted into the top of window-casings, and Strings attached,reaching to within about one foot of the window-sill. (See Aiixs. 4 and5.) As the Apparatus is not tall enough to make these experimentsvery striking, the 12-inch tin tube is Exp. 20. Exp. 20. Suspend the tin tube as illustrated by aslong a string as possible just above a table or a window-sill. Steadying it with one hand, carefully remove bothcap and tube together from one lower hole with the otherhand, and let go of the tube at the same time. 24 INDUCTIVE PHYSICH. Inference. Why does the tube swing away from the jetof water ? Exp. 21. With the tube still hanging, insert elbow jet-tubes in both of the lowest holes so as to point in oppositedirections, and fill with water. Experiment in a varietyof ways, thus: with both jet-tubes horizontal and the tin
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysics, bookyear1897
