Elementary Treatise on Natural Philosophy: Mechanics, hydrostatics, and pneumaticsD. Appleton, 1884 |
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Términos y frases comunes
acceleration action air-pump amount angle apparatus Archimedes atmospheric pressure axis balloon barometer barrel body Boyle's law called capillary capillary action carbonic acid centimetres centre of buoyancy centre of gravity cistern column of mercury component compressed cubic cubic centimetre curve cycloid cylinder denote density depth diameter diminishes direction distance dynes employed equal equator equilibrium exerted forces acting formula free surface friction gases given glass grammes hence horizontal hydrometer immersed inch increases instrument length lever liquid liquid displaced lower machine mass measured millimetres moment of inertia motion moving observed opening opposite orifice oscillations parallel particle passes pendulum piston plane position principle produce pump pump-barrel radius represented reservoir resultant rise scale screw side siphon solid specific gravity stop-cock stroke suppose temperature tion tube unit untraversed space upper valve velocity vertical vessel vibration volume weight
Pasajes populares
Página 41 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Página 176 - Dalton's law for gaseous mixtures." The separate pressures can easily be calculated by Boyle's law, when the original pressure and volume of each gas are known. For example, let V and P, V...
Página 11 - The moment of a force about a point is the product of the magnitude of the force by the perpendicular distance from the point to the line of action of the force.
Página 86 - If a vessel full of water, closed on all sides, has two openings, the one a hundred times as large as the other, and if each be supplied with a piston which fits...
Página 29 - These simple machines are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw.
Página 84 - ... intensity. 138. Pressure the Same at the Same Level. — In a fluid at rest, the pressure is the same at all points in the same horizontal plane. This appears from considering the equilibrium of a horizontal cylinder AB (Fig. 50), of small sectional area, its ends being right sections. The pressures on the sides are normal, and therefore give no component in the direction...
Página 24 - A force is said to do work when its point of application moves in the direction of the force.
Página 166 - Defence of the Doctrine touching the Spring and Weight of the Air against the Objections of Franciscus Linus, appended to NeW Experiments, Physico-mechanical, &c.
Página 67 - ... isochronous. To obtain strictly isochronous vibrations we must substitute for the circular arc a curve which possesses the property of having an inclination whose sine is simply proportional to distance measured along the curve from the lowest point. The curve which possesses this property is the cycloid. It is the curve which is traced by a point in the circumference of a circle which rolls along a straight line. The cycloidal pendulum is constructed by suspending an ivory ball or some other...
Página 115 - When two or more substances are mixed without either shrinkage or expansion (that is, when the volume of the mixture is equal to the sum of the volumes of the components), the density of the mixture can easily be expressed in terms of the quantities and densities of the components.