Elements of Physics: Or Natural PhilosophyD. Appleton, 1887 - 873 páginas |
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Página 1
... 1. The smallest portion of matter that the human eye can see is really a collection of many minute particles , called atoms or molecules , which may be separated , assorted , 2 Matter built up of Minute Parts . or re.
... 1. The smallest portion of matter that the human eye can see is really a collection of many minute particles , called atoms or molecules , which may be separated , assorted , 2 Matter built up of Minute Parts . or re.
Página 2
... particles so fine that they are no longer perceptible to the eye . When so reduced that a single particle is only the 500,000th of an inch in diameter , it would be no longer visible under a powerful microscope . A small quantity of ...
... particles so fine that they are no longer perceptible to the eye . When so reduced that a single particle is only the 500,000th of an inch in diameter , it would be no longer visible under a powerful microscope . A small quantity of ...
Página 3
... particles in all directions , and yet it will have lost but very little of its weight . By acute sense of smell the dog detects some material trace of his master as he tracks his footsteps , it may be for miles . Still more minute are ...
... particles in all directions , and yet it will have lost but very little of its weight . By acute sense of smell the dog detects some material trace of his master as he tracks his footsteps , it may be for miles . Still more minute are ...
Página 4
... particles to be atomic or in- divisible . We may melt gold , and even make it pass into the form of an in- visible vapour : but there ends the power of heat , the most potent analyser that we have . The natural conception of what takes ...
... particles to be atomic or in- divisible . We may melt gold , and even make it pass into the form of an in- visible vapour : but there ends the power of heat , the most potent analyser that we have . The natural conception of what takes ...
Página 6
... particles of the nail do not penetrate the particles of the door . We merely push the latter aside and put the nail where the wood was an instant before . So pushing a bottle , mouth down , into water will never fill it ; as the bottle ...
... particles of the nail do not penetrate the particles of the door . We merely push the latter aside and put the nail where the wood was an instant before . So pushing a bottle , mouth down , into water will never fill it ; as the bottle ...
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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...