The Philosophical magazine; a journal of theoretical, experimental and applied physics . i ^. rig 22. J ^-^ Prof. Magnuses Hydraulic Researches. 163 by Savart, these are seldom present in^such quantity as to beespecially striking. ] 20. Even with a perfectly regular flow, it is difficult to esta-blish a quite steady stream; for if the water flows out under apressure of about 20 centimetres, it is impossible to ensure theperfect constancy of the jet, even when the ^ tranquilhzer isused. With a smaller pressure, the jet, it is true, appearsperfectly smooth; but the sm
The Philosophical magazine; a journal of theoretical, experimental and applied physics . i ^. rig 22. J ^-^ Prof. Magnuses Hydraulic Researches. 163 by Savart, these are seldom present in^such quantity as to beespecially striking. ] 20. Even with a perfectly regular flow, it is difficult to esta-blish a quite steady stream; for if the water flows out under apressure of about 20 centimetres, it is impossible to ensure theperfect constancy of the jet, even when the ^ tranquilhzer isused. With a smaller pressure, the jet, it is true, appearsperfectly smooth; but the smallest motion—that, for instance,occasioned by the passage of a carriage in a distant street—issufficient to displace the image of au object seen by the reflexionfrom the jet. The formation of the swellings. 121. No swellings, however, are occasioned by such order that these may be formed, the vessel from which thewater flows must receive regularly and quickly recurring fittest means for this purpose is furnished by the soundingof a note. Indeed for the production of regular swellings,scarcely an
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