Elements of Physics, 1. részLongman, Brown, Green, and Longmans, 1854 |
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Gyakori szavak és kifejezések
Acid acts æther air-pump altitude angle aperture apparatus ascend atmospheric air atmospheric pressure attraction axis ball balloon barometer barrel catgut cause centre of gravity centrifugal force chromatic scale cock compression consequently contains cord cubic curve cylinder degree density diameter direction distance earth elastic elastic fluid elevation equal equilibrium exerted experiment feet filled friction gases glass greater hydrogen impinge inches inclined plane latter laws length lever liquid mass means mercury metal monochord motion move musical sounds nodal nodal lines number of vibrations obtained oscillations Oxygen parabola particles pendulum piston plate portion produced proportion pulley quicksilver rarefaction rarefied resistance scale Second Exp sides similar solid bodies sonorous body space specific gravity string substances surface syphon temperature Third Exp tion toises trachea tube undulation velocity vessel wave weight wheel whence whilst wire
Népszerű szakaszok
18. oldal - To every action there is always opposed an equal reaction: or, the mutual actions of two bodies upon each other are always equal, and directed to contrary parts.
18. oldal - The change of motion is proportional to the motive force impressed ; and is made in the direction of the right line in which that force is impressed.
18. oldal - Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
106. oldal - The lever, the pulley, the wheel, and axle, the inclined plane, the wedge, and the screw.
73. oldal - Trans. 1813) ingeniously proposed to consider the primitive particles as spheres which, by mutual attraction, have assumed that arrangement which brings them as near as possible to each other. When a number of similar balls are pressed together in the same plane...
6. oldal - Of these creatures, which for the most part we can see only by the aid of the microscope, there exist many species so small that millions piled on. each other would not equal a single grain of sand, and thousands might swim at once through the eye of the finest needle. The coats-of-mail and shells of these animalcules exist in such prodigious quantities on our earth that, • according to Ehrenberg's investigations, pretty extensive Ehrenberg's strata of rocks, as, for instance, the smooth slate...
6. oldal - ... of matter are far surpassed by the minuteness of animalcules, for whose natural history we are indebted chiefly to the researches of the renowned Prussian naturalist, Ehrenberg. He has shown that there are many species of these creatures, so small that millions together would not equal the bulk of a grain of sand, and thousands might swim at once through the eye of a needle. These infinitesimal animals are as well adapted to life as the largest beasts, and their motions display all the phenomena...
142. oldal - Face, is equal to the Weight of a. Column of the Fluid, whose Base is the Plane...
10. oldal - Epicurus first gave the name of atoms. To these atoms he attributed a rectilinear motion, in consequence of which such as are homogeneous united, whilst the lighter were dispersed through space.