A System of Mechanical Philosophy, Bindi 4J. Murray, 1822 - 50 síður |
From inside the book
Niðurstöður 1 - 5 af 99
Síða 4
... less convincing , form . At the same time we will insert the valuable addi- tions made by Mr. Cavendish , and many important parti- culars not noticed by either of those gentlemen . HYPOTHESIS OF ÆPINUS . 1. THE phenomena of electricity ...
... less convincing , form . At the same time we will insert the valuable addi- tions made by Mr. Cavendish , and many important parti- culars not noticed by either of those gentlemen . HYPOTHESIS OF ÆPINUS . 1. THE phenomena of electricity ...
Síða 5
... less of it . 2. Such as do not immediately arise from this transference , but are instances of its attraction and repulsion . These things being supposed , certain consequences ne- cessarily result from them , which ought to be ...
... less of it . 2. Such as do not immediately arise from this transference , but are instances of its attraction and repulsion . These things being supposed , certain consequences ne- cessarily result from them , which ought to be ...
Síða 9
... less than its na- tural quantity of fluid , there will be an influx from without ; for if there be a deficiency of fluid = ƒ , the particle P will be repelled with the force Q - fxr fr Q It is at tracted with the force a ; and therefore ...
... less than its na- tural quantity of fluid , there will be an influx from without ; for if there be a deficiency of fluid = ƒ , the particle P will be repelled with the force Q - fxr fr Q It is at tracted with the force a ; and therefore ...
Síða 13
... less repelled than if the part AS were overcharged as AN is : for in that case , it would be expel- fr - gr Q fxr + r ' led by a force , which is much greater than Q And , in like manner , the particle S is attracted with less force ...
... less repelled than if the part AS were overcharged as AN is : for in that case , it would be expel- fr - gr Q fxr + r ' led by a force , which is much greater than Q And , in like manner , the particle S is attracted with less force ...
Síða 15
... less than its natural quantity . But it neither acts like an overcharged nor like an undercharged body , and may therefore be called NEUTRAL . The reader who is conversant with electrical experiments , will recollect number- less ...
... less than its natural quantity . But it neither acts like an overcharged nor like an undercharged body , and may therefore be called NEUTRAL . The reader who is conversant with electrical experiments , will recollect number- less ...
Aðrar útgáfur - View all
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.