A System of Mechanical Philosophy, Bindi 4J. Murray, 1822 - 50 síður |
From inside the book
Niðurstöður 1 - 5 af 54
Síða 98
... pipe exceed the pressure of the air in the upper ball on the other orifice by a force equal to the weight of the mercury , that is , to the aggregate of the action of gra- vity on each particle of mercury in the pipe . Therefore the ...
... pipe exceed the pressure of the air in the upper ball on the other orifice by a force equal to the weight of the mercury , that is , to the aggregate of the action of gra- vity on each particle of mercury in the pipe . Therefore the ...
Síða 133
... pipe ( arising from friction , or even from material obstacles in the pipe ) causes the water to press on the sides of the pipe . There- fore if a wire connect the other coating with the ground , we should expect that fluid will be ...
... pipe ( arising from friction , or even from material obstacles in the pipe ) causes the water to press on the sides of the pipe . There- fore if a wire connect the other coating with the ground , we should expect that fluid will be ...
Síða 158
... pipe hurries along with it the surround- ing air and flame from a considerable surface on all sides . It is in this manner that it gathers the whole of a large flame into one mass , and , at last into a very point . If the smoke of a ...
... pipe hurries along with it the surround- ing air and flame from a considerable surface on all sides . It is in this manner that it gathers the whole of a large flame into one mass , and , at last into a very point . If the smoke of a ...
Síða 246
... pipe and the wires , which are converted into the shining æthiops , should be placed in the magnetic direc- tion . 2. If a bar of steel be long hammered while lying in the magnetic direction , it acquires a sensible magnetism ( See Dr ...
... pipe and the wires , which are converted into the shining æthiops , should be placed in the magnetic direc- tion . 2. If a bar of steel be long hammered while lying in the magnetic direction , it acquires a sensible magnetism ( See Dr ...
Síða 323
... pipe lying obliquely . If indeed the magnetic fluid could escape from the iron without any obstruction by the propulsion of the magnet , it could produce no attraction , or sensible motion , any more than light does in a transparent ...
... pipe lying obliquely . If indeed the magnetic fluid could escape from the iron without any obstruction by the propulsion of the magnet , it could produce no attraction , or sensible motion , any more than light does in a transparent ...
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Common terms and phrases
action angle arch axis balance ball beats body canal centre coating conductor constipated cord curve cylinder Daniel Bernoulli degree density diameter diminished dipping needle direction distance effect elec electric fluid electrified electrometer electrophorus equal experiments explain farther force give glass globe greater harmony harpsichord headsails impulse inches increase length limma loadstone magnet major third manner mean tones motion moveable musical natural natural density nearly needle north pole observed octave overcharged pallet particle pendulum perfect perpendicular phenomena piece of iron pipe plate polarity position precisely produced proportion pulses quantity ratio reader redundant fluid redundant matter repel round sails scapement sensible shew ship side sound south pole stratum string suppose surface temperament tetrachords theory tion tooth touch tricity trumpet tune undercharged undulations velocity vibrations wheel whole wind wire
Vinsælir kaflar
Síða 353 - COMPASS, or the declination of the magnetic or mariner's needle from the meridian or true north and south line at the undermentioned places in the United Kingdom, estimated for the year 1875.
Síða 209 - Elsewhere, Prof. Robison remarks : " It is not saying too much of this work to affirm that it contains almost everything we know of magnetism. His unwearied diligence in searching every writing on the subject and in getting information from navigators, and his incessant occupation in experiments, have left very few facts unknown to him. We meet with many things in the writings of posterior inquirers, some of them of high reputation and of the present day, which are published and received as notable...
Síða 545 - PC, the tooth B continues to press on the pallet D, and thus accelerates the pendulum, both during its descent along the arch PH, and its ascent along the arch HG. It is no less evident, that when the pallet D, by turning round the axis XY, raises its point above the plane of the wheel, the tooth B escapes from it, and i drops on the pallet c, which is now nearly perpendicular. i presses c; to the right, and accelerates the motion of the pendulum along the arch GP.
Síða 411 - We are sorry to see this ; because we have great expectations from the future labours of this gentjeman in the field of harmonics, and his late work is rich in refined and valuable matter. We presume humbly to recommend to him attention to his own admonitions to a very young and ingenious gentleman, who, he thinks, proceeded too far in animadverting on the writings of Newton, Barrow, and other eminent mathematicians.
Síða 609 - Yet a ship is a machine. We know the forces which act on it, and we know the results of its construction — all these are as fixed as the laws of motion. What hinders this to be reduced to a set of practical maxims, as well founded and as logically deduced as the working of a steam-engine or a cotton-mill?
Síða 676 - ... all shivering: For these sails, continuing to draw with considerable force, and balancing each other tolerably fore and aft, keep up the ship's velocity very much, and thus maintain the power of the rudder. If we now let all fly when the...
Síða 613 - ... is precisely such as is stated in the theory. The principles of the art are therefore to be found in these treatises ; but false inferences have been drawn, by computing from erroneous quantities.
Síða 657 - When this position is attained, note carefully the form of the rope, that is, the angle which its two parts make with the horizon. Call this angle a. Every...
Síða 656 - We shall not be far mistaken in the deflection of each contiguous filament, as it quits the bottom and glides along the rudder ; but we neither know the velocity of these filaments, nor the deflection and velocity of the filaments gliding without them.
Síða 665 - ... forward by removing a part of the bows out of the water. It has not always this effect ; for the form of the harping aloft is frequently such that the tendency to gripe is diminished by immersing more of the bow in the •water.