Elements of Physics: Or Natural PhilosophyD. Appleton, 1887 - 873 páginas |
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Página 9
... pounds at the level of the sea weighs considerably less at the top of a mountain or when raised in a balloon , as is proved experimentally by a spring balance or other means . Astronomical tests show that the amount of the earth's ...
... pounds at the level of the sea weighs considerably less at the top of a mountain or when raised in a balloon , as is proved experimentally by a spring balance or other means . Astronomical tests show that the amount of the earth's ...
Página 12
... pounds . If such be the case with a smooth hard substance like glass , which does not readily tarnish , we can easily see how much more difficult it will be to bring within cohering distance two metallic surfaces , which speedily ...
... pounds . If such be the case with a smooth hard substance like glass , which does not readily tarnish , we can easily see how much more difficult it will be to bring within cohering distance two metallic surfaces , which speedily ...
Página 23
... pounds ; and they were so heavy , that if a man fell , he had great difficulty in getting up again without assistance . " Malleable . " 59. The cohesive quality by which bodies allow of their being hammered into thin leaves or plates is ...
... pounds ; and they were so heavy , that if a man fell , he had great difficulty in getting up again without assistance . " Malleable . " 59. The cohesive quality by which bodies allow of their being hammered into thin leaves or plates is ...
Página 27
... pounds of ingredients that melt at different temperatures , as well as those metals which , like iron , potassium , or sodium , admit of welding , pass through an intermediate semi - fluid or viscous state before complete fusion ...
... pounds of ingredients that melt at different temperatures , as well as those metals which , like iron , potassium , or sodium , admit of welding , pass through an intermediate semi - fluid or viscous state before complete fusion ...
Página 38
... pounds ; they must be ascertained by actual trial , they can never be determined from a knowledge of the elements . Sugar is but a union in certain proportions of pure carbon ( or charcoal ) with the elements of water . Sulphur and ...
... pounds ; they must be ascertained by actual trial , they can never be determined from a knowledge of the elements . Sugar is but a union in certain proportions of pure carbon ( or charcoal ) with the elements of water . Sulphur and ...
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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...