First Principles of Physics: Or Natural Philosophy, Designed for the Use of Schools and CollegesH.C. Peck & T. Bliss, 1859 - 720 من الصفحات |
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طبعات أخرى - عرض جميع المقتطفات
1ST PRINCIPLES OF PHYSICS OR N <span dir=ltr>Benjamin 1816-1885 Silliman</span> لا تتوفر معاينة - 2016 |
1ST PRINCIPLES OF PHYSICS OR N <span dir=ltr>Benjamin 1816-1885 Silliman</span> لا تتوفر معاينة - 2016 |
عبارات ومصطلحات مألوفة
acid angles apparatus atmospheric pressure axis axle barometer body falling called capillary tube carbonic acid cause centre of gravity centrifugal force cistern column compressed cord corresponding crystals curve cylinder density Describe determined diameter direction distance earth effect elastic elevation endosmose equal equilibrium escape example exerted expansion experiment falling bodies feet filled fluid force friction fulcrum gases glass glottis greater heat horizontal hydrogen hydrometers illustration inches inclined plane increased instrument laminae larynx length lever liquid machine mass means membrane mercury metal motion move movement nodal nodal lines number of vibrations observed orifice oscillation parallel particles pendulum piston placed plate position power and weight prism produced proportion pulley resistance rise rolling friction scale screw solid space specific gravity square starting friction substance surface syphon temperature thermometer tion undulations valve velocity of sound vertical vessel volume waves wheel
مقاطع مشهورة
الصفحة 447 - A' R, have sufficient intensity to be visible to the naked eye. 728. Total reflection. — -When light passes from a dense to a rarer medium, the angle of refraction is greater than the angle of incidence, and when the angle of refraction is 90°, the angle of incidence is much less.
الصفحة 699 - Ohio, 42 ; Missouri, 38'265. 984. Snow is the frozen moisture that descends from the atmosphere, when the temperature of the air at the surface of the earth is near, or below, the freezing point. The largest flakes of snow are produced when the atmosphere is loaded with moisture, and the temperature of the air is about 32° ; as the cold increases, the flakes become smaller. The bulk of recently fallen snow is ten or twelve times greater than that •:•(
الصفحة 688 - Periodical winds are those which blow regularly in the same direction, at the same seasons, and at the same hours of the day ; the monsoon, simoom, and the land and sea breeze are examples of this class. The name monsoon is given to winds which blow for six months in one direction, and for six months in another. They...
الصفحة 674 - If a current be established in a wire, and another wire, forming a complete circuit, be placed parallel to the first, at the moment the current in the first is stopped it induces a current in the same direction in the second, the first exhibiting then but a feeble spark ; but if the second wire be away, disjunction of the first wire induces a current in itself in the same direction, producing a strong spark. The strong spark in the single long wire or helix, at the moment of disjunction, is therefore...
الصفحة 689 - it appears that hurricanes are storms of wind, which revolve around an axis, upright or inclined to the horizon, while, at the same time, the body of the storm has a progressive motion over the surface of the earth.
الصفحة 136 - There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel.
الصفحة 257 - ... separated by equal intervals, moving against the side or end of the channel, and reflected from it. 322. Depth to which -waves extend. — Waves, or undulations, are not only propagated laterally, but also in all other directions. It has been ascertained (by the Messrs. "Webber) that the equilibrium of the liquid is not disturbed to a greater depth than about three hundred and fifty times the altitude of the wave. 323. Reflection of waves. — If a series of progressive waves are arrested by...
الصفحة 111 - Such a compensation takes place in every oscillating body, and between the particles which are nearer and those more remote from the point of suspension, there is always a point so situated that it is neither accelerated nor retarded, but oscillates exactly as if it were suspended alone, at the end of a thread, without weight. This remarkable point is called the centre of oscillation ; and its distance from the point of suspension is the length of the pendulum. This is -equal to the length of a simple...
الصفحة 213 - Whatever change of weather suddenly follows a change in the barometer may be expected to last but a short time. Thus, if fair weather follow immediately the rise of the mercury, there will be very little of it ; and in the same way, if foul weather follow the fall of mercury it will last but a short time.
الصفحة 656 - ... a needle would make it into such a magnet as the dipping needle, or would themselves constitute an electromagnet of similar qualities; or if brought near a magnet would tend to make it take that direction; or would themselves...