. The book of garden management : Comprising information on laying out and planting Gardening -- Great Britain. FOUNTAINS, FISHPONDS, AND ORNAMENTAL WATERS. 97. the fluid poured into the funnel; when the jar is filled, it will flow out in a jet so long as liquid is poured into the funnel, the jet being proportioned in height to the height and diameter of the tube. â 221. Jets exceeding the fifteenth of an inch in size never attain the natural surface-level; fi-iction at the orifice, the diffusion of the power by the spreading of sjDray, and the resisting power of the atmosphere, all
. The book of garden management : Comprising information on laying out and planting Gardening -- Great Britain. FOUNTAINS, FISHPONDS, AND ORNAMENTAL WATERS. 97. the fluid poured into the funnel; when the jar is filled, it will flow out in a jet so long as liquid is poured into the funnel, the jet being proportioned in height to the height and diameter of the tube. â 221. Jets exceeding the fifteenth of an inch in size never attain the natural surface-level; fi-iction at the orifice, the diffusion of the power by the spreading of sjDray, and the resisting power of the atmosphere, all tend to prevent its doing so. Great jets rise higher in proportion than small, except when the horizontal tube leading to the orifice of the jet is very narrow, when small jets rise highest. The form of the orifice also influences tlie height of the jet, as was ascertained in a series of interesting experiments made by Mv. Brisson, to test the power of water. He prepared an upright vessel, A B, with a narrow horizontal tube, 0 K, on one side, and a larger horizontal tube, OP, on the opposite side. The first was perforated with three simple orifices,â M two hnes, L four lines, and K eight lines, in diametei-. Turning on these jets, the first rose 9 feet 11 inches, vertically, the second 9 feet 7 inches, bbisson's pountaiw. and the last, 7 feet 10 inches. In the larger horizontal tube, 0 P, he made five small orifices; D, with a cylindrical orifice 70 lines, which rose 9 feet 1 inch, vertically, and 9 feet 3 inches on an incline ; E, from a conical orifice 94 lines by 70, rose 9 feet 6 inches vertically, and 9 feet 8 inches on an inchne; F, G, and H rose respectively, with simple orifices of eight, four, and two lines, 10 feet 6 inches, 10 feet 5 inches, and 10 feet, vertically. It thus ap- pears that the smaller cylindrical tube was the least effective ; that the conical orifice threw the fluid much higher, and the simple orifice, with the largest opening, the highest of all.
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Keywords: ., bookauthorbeetonsamue, bookpublisherlondonsobeeton, bookyear1862
