## An Elementary Course of Hydrostatics and Sound |

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30 inches 33 feet air-pump applied atmospheric pressure barometer stands base bulk of water centi centre of gravity centre of pressure common pump compressed condensed cone cord cubic centimetres cubic foot cubic inch cylinder density depth diameter disc elastic engine equal bulk equilibrium example exerted Fcap filled with water Find the pressure find the specific find the weight flask fluid pressure fundamental note grains grammes gravity of mercury grms Hence horizontal plane inches of mercury kilogs length liquid loops loss of weight mass metal metres motion nodes number of vibrations particles pipe piston placed prism proportional rectangle resultant pressure side siphon specific gravity square centimetre square inch steam string Suppose surface temperature termed triangle tube unit valve velocity of sound vertical lines vessel vibrations per second volume water weighs wave weight of water whole pressure

### Popular passages

Page 10 - Define a fluid and explain the hydrostatic paradox ; ' Any quantity of fluid however small may be made to support any weight however large.

Page 2 - ... metals in a state of fusion. Viscid fluids are, in general, not homogeneous ; they consist of solid granules floating in a real fluid. Alcohol and ether are more fluid than even water. The most perfect fluidity belongs to the gases. But what chiefly distinguishes gases from liquids is elasticity. A cubic foot of any gas may readily be compressed into half a foot ; double the...

Page iv - Philosophy, Lond. Fcap. 8vo, cloth, price 3s., post free for 36 stamps. This book contains all that is required on these subjects for the BA and B.Sc. degrees of the University of London. " The work is fully illustrated, and, in addition to the very clear and simple style of treatment of the sciences, the author has given a decidedly practical value to his work by the insertion of a number of exercises...

Page 73 - ... altitude equal to the depth of the centre of gravity of the surface below the surface of the fluid.

Page 52 - ... and the pressure of the air upon the surface of the water on the outside of the tube forces the. fluid into it. The valve B is at the same time opened upwards, and the water, after several strokes, rushes in above it. When the upward stroke of the piston is complete, it is Fig.

Page 6 - It must be remembered that the ratio of the areas is what is here wanted, the area of a circle is the square of the radius multiplied by ir (or approximately, by Sji).

Page 83 - A cubical vessel filled with fluid is held with one of its diagonals vertical ; compare the pressures on the sides. 17. If a cubical vessel be filled, half with mercury and half with water ; compare the pressure on the sides with the pressure on the base, which is horizontal. 18. A side of the base of a square pyramid is 10 inches, the altitude is 22 inches ; if the pyramid be filled with water, compare the pressure on the base with the pressure on each side, and with the weight of the water. 19....

Page 137 - The specific gravity of mercury is 13'6, and the height of the mercurial barometer is 30 inches. What is the greatest height to which water can be raised by means of the common pump ?— Ans.

Page 68 - Q fC.J- ~~ of the cylinder must be equal to the weight of the cylinder. Hence if p, p...

Page 139 - Loschmidt calculated this number for a gas at 0° C, and under a pressure of 760 mm of mercury, as 2.74 x 1019, and Planck,1 from thermodynamic reasoning, found 2.76 X 10B.