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مقاطع مشهورة

الصفحة 4 - Newton generalized the law of attraction into a statement that every particle of matter in the universe attracts every other particle with a force which varies directly as the product of their masses and inversely as the square of the distance between them; and he thence deduced the law of attraction for spherical shells of constant density.
الصفحة 97 - Z(mr*), is called the moment of inertia of the body with respect to the axis of suspension. The moment of inertia...
الصفحة 295 - ... equal to the depth of the centre of gravity of the surface below the surface of the fluid.
الصفحة 228 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
الصفحة 167 - The straight line or distance between the centres of the two gold plugs or pins (as mentioned in the First Schedule to this Act) in the bronze bar by this Act declared to be the imperial standard for determining the imperial standard yard measured when the bar is at the temperature...
الصفحة 284 - The thermal capacity or heat capacity of a substance is expressed as the amount of heat required to raise the temperature of a unit weight of the substance one degree.
الصفحة 45 - In pyramids and cones the centre of gravity is in the straight line that joins the vertex with the centre of gravity of the base, and at three-fourths of its length from the vertex, and one-fourth from the base.
الصفحة 24 - Hence the moment of the resultant is equal to the sum of the moments of the two components.
الصفحة 169 - S mom = aJ, in which /is the moment of inertia of the body with respect to the axis of rotation.
الصفحة 367 - ... fills the cube of a hundredth part of the meter. Each unit has its decimal multiples and sub-multiples, that is, weights and measures ten times larger, or ten times smaller, than the principal units. The prefixes denoting multiples are derived from the Greek, and are: Deka, ten; hecto, hundred; kilo, thousand, and myria, ten thousand.