Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 385
w-ledged by a duck7 or curtsy of the flame, and each restby a recovery to its usual height and form. 283. Suspended Disc.—When a light disc is suspendedso as to be capable of rotating freely about a vertical axis,it shows a tendency to set normally to the direction of flowof the medium in which it… … That a flat obstacle tends to turn its flat side to thestream may be inferred from the general character of thelines of flow round it. The pressures at the various pointsof the surface BC (Fig. 80) depend upon the velocities of the fluid there obtain-//* ing. The full pressure py/ -^ due to the…
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