The Elements of Mechanical Physics

Front Cover
Chapman & Hall, 1864 - 188 pages

From inside the book

Selected pages

Other editions - View all

Common terms and phrases

Popular passages

Page 152 - If three forces acting at a point are in equilibrium they can be represented in magnitude and direction by the three sides of a triangle taken in order.
Page 120 - Face, is equal to the Weight of a. Column of the Fluid, whose Base is the Plane...
Page 119 - To explain the construction of the common barometer, and to shew that the mercury is sustained in it by the pressure of the air on the surface of the mercury in the basin.
Page 140 - Enunciate the principle of virtual velocities, and prove it in the case of a bent lever.
Page 92 - The equatorial diameter of the earth exceeds the polar diameter by about twenty-six miles ; consequently the poles must be nearer to the centre of the earth's attraction than the equator, and gravity must also operate with greater force at the poles than at the equator. Hence, also, the length of a pendulum, to vibrate in any given time, must vary with the latitude of the place. $ The pendulum of a clock is made longer or shorter by means of a screw beneath the weight or ball of the pendulum. The...
Page 108 - ... 14. If a body of uniform density floats in a fluid, the volume of the part immersed is to the volume of the whole body as the specific gravity of the body is to the specific gravity of the fluid. A piece of cork weighing...
Page 70 - If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest.
Page 2 - Force is that which changes, or tends to change, the state of rest or motion of the body acted upon.
Page 13 - F, the weight being between the fulcrum and the power. In a lever of the third kind, fig. III., the power P and the weight W act on the same side of the fulcrum F, as in the latter case, but the power, in this case, is between the fulcrum and the weight.

Bibliographic information