Elements of Physics: Or Natural PhilosophyD. Appleton, 1887 - 873 páginas |
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Página 7
... whole power of the earth were condensed at its centre , and the vertical , or line in which a plummet hangs or a stone drops , points at each spot over the globe towards that centre . 15. It is owing to this general attraction that our ...
... whole power of the earth were condensed at its centre , and the vertical , or line in which a plummet hangs or a stone drops , points at each spot over the globe towards that centre . 15. It is owing to this general attraction that our ...
Página 43
... 200,000 Electric currents in telegraph wires · 12,000 * * It would thus require only two seconds to traverse the whole circum . ference of the earth at the Equator . 44 Relative Velocities . Relative motion of the sun in 7.
... 200,000 Electric currents in telegraph wires · 12,000 * * It would thus require only two seconds to traverse the whole circum . ference of the earth at the Equator . 44 Relative Velocities . Relative motion of the sun in 7.
Página 46
... whole year . In point of fact , the motion of the minute hand of a watch is not uniform , but consists of a succession of little hops , which may be seen when we look at the seconds hand , but which are no more considered than the steps ...
... whole year . In point of fact , the motion of the minute hand of a watch is not uniform , but consists of a succession of little hops , which may be seen when we look at the seconds hand , but which are no more considered than the steps ...
Página 59
... whole force was spent ; and the sole object of the mechanism is merely to regulate this force and allow it to act uniformly . " The accelerating force of gravity . " 133. Gravity is the most obvious example of accelerating force , as it ...
... whole force was spent ; and the sole object of the mechanism is merely to regulate this force and allow it to act uniformly . " The accelerating force of gravity . " 133. Gravity is the most obvious example of accelerating force , as it ...
Página 60
... whole time of its descent . The shock or blow of the ram of a pile - engine is not the effect of a momentary impulse given by the earth , but of an attraction continued through a space of perhaps twenty feet . A common hammer in its ...
... whole time of its descent . The shock or blow of the ram of a pile - engine is not the effect of a momentary impulse given by the earth , but of an attraction continued through a space of perhaps twenty feet . A common hammer in its ...
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Otras ediciones - Ver todas
Términos y frases comunes
action atmosphere atmospheric pressure axle balance ball balloon barometer beam blow body bottom bulk buoyancy called carbonic acid carriage cause centre of gravity centrifugal force chemical cohesion column common cork density diffusion direction distance earth effect elastic Energy equal fall feet float fluid friction gases glass gradually greater half heat heavy Hence horizontal hydrogen illustration inch inclined plane increase instance iron length less lever lift liquid machine mass matter mercury metal miles molecules momentum motion moving musical oxygen particles pass pendulum piston placed plane pound pound weight pressure principle produced proportion pulley quantity resistance rest rise rope round screw ship side simple machines solid sound space specific gravity stone string substance surface temperature tion tube turn uniform velocity velocity of sound vertical vessel vibrations waves weight wheel whole wind
Pasajes populares
Página 467 - ... will prevent the metal from running away, and in a few minutes it will cool and take the impression, without the slightest injury to the paper from which it was taken.
Página 799 - That the squares of the times of the revolutions of the planets are as the cubes of their mean distances from the sun.
Página 368 - When horses or mules march in company at night, those in front direct their ears forward...