Scientific Dialogues, Том 2M. Carey, 1815 - 260 страница |
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Страница 40
... receiver , that is , in a glass jar from which the air is taken away by means of the air- pump , smoke and steam descend by their own weight as completely as a piece of lead . When we come to converse on the subject of pneumatics and ...
... receiver , that is , in a glass jar from which the air is taken away by means of the air- pump , smoke and steam descend by their own weight as completely as a piece of lead . When we come to converse on the subject of pneumatics and ...
Страница 202
... receiver , however large , and take away the air , they would have no more use of their wings , than fish have of their fins when out of wa- ter . You shall see the experiment in a day or two : If this support Were wanting , all the ...
... receiver , however large , and take away the air , they would have no more use of their wings , than fish have of their fins when out of wa- ter . You shall see the experiment in a day or two : If this support Were wanting , all the ...
Страница 203
... receiver , and it will revive ; whereas experiments have been made on mice , rats , birds , rabbits , & c . and it is found that they will live without air but a very few minutes . Emma . These are very cruel experi- ments . Father ...
... receiver , and it will revive ; whereas experiments have been made on mice , rats , birds , rabbits , & c . and it is found that they will live without air but a very few minutes . Emma . These are very cruel experi- ments . Father ...
Страница 206
... 1. ) is called an air - pump , and its use is to ex- haust or draw away the air from any vessel , as the glass receiver L K. Charles . Does it act like the common pump ? A A are two Father . So much so , 206 PNEUMATICS .
... 1. ) is called an air - pump , and its use is to ex- haust or draw away the air from any vessel , as the glass receiver L K. Charles . Does it act like the common pump ? A A are two Father . So much so , 206 PNEUMATICS .
Страница 208
... receiver when it is in a state of exhaus- tion ; for without such a contrivance , the receiver could never be moved out of its place , after the air was once taken from beneath it . But you shall try for your- selves . I first place a ...
... receiver when it is in a state of exhaus- tion ; for without such a contrivance , the receiver could never be moved out of its place , after the air was once taken from beneath it . But you shall try for your- selves . I first place a ...
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air-pump ascend attraction axis ball bladder bottle bottom bucket bulk called centre Charles cock consequently CONVERSATION copper cork cubical cubical foot descend diameter distance diurnal motion earth eclipse Emma equal equator experiment explain fall Father feet filled fixed stars force glass globe gold grains Gravity of Bodies greater guinea heavens heavier than water hydrometer hydrostatics immersed inches inclined plane James length less lever light lighter means Mercury millions of miles moon motion move orbit ounces papa particles piece pint pipe piston planets Plate polar circles pound pound weight pressure of fluids principle proportion pump quantity of water quicksilver retrograde motion rise round Saturn side silver sink small tube space specific gravity spirits of wine square superior planets Suppose surface syphon tion turn Tutor upward pressure valve velocity vessel weight wine wood
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Страница 312 - Ask for what end the heavenly bodies shine, Earth for whose use? Pride answers, " 'Tis for mine: For me kind nature wakes her genial power, Suckles each herb, and spreads out every flower; Annual for me, the grape, the rose renew The juice nectareous, and the balmy dew ; For me, the mine a thousand treasures brings; For me health gushes from a thousand springs; Seas roll to waft...
Страница 314 - And choral symphonies, day without night Circle his throne rejoicing; ye in heaven, On earth join all ye creatures to extol Him first, him last, him midst, and without end. Fairest of stars, last in the train of night, If better thou belong not to the dawn, Sure pledge of day, that crown'st the smiling mom With thy bright circlet, praise him in thy sphere, While day arises, that sweet hour of prime.
Страница 290 - Less than archangel ruined, and the excess Of glory obscured ; as when the sun, new risen, Looks through the horizontal misty air Shorn of his beams, or from behind the moon, In dim eclipse, disastrous twilight sheds On half the nations, and with fear of change Perplexes monarchs.
Страница 204 - Of thirty years, to Mercury, whose disk Can scarce be caught by philosophic eye, Lost in the near effulgence of thy blaze.
Страница 86 - The horizontal distance to which a fluid will spout from a horizontal pipe in any part of the side of an upright vessel, below the surface of the fluid, is equal to twice the length of a perpendicular to the side of the vessel, drawn from the mouth of the pipe to a semicircle described upon the...
Страница 206 - THE sun revolving on his axis turns, And with creative fire intensely burns ; Impell'd the forcive air, our earth supreme Rolls with the planets round the solar gleam. First Mercury completes his transient year, Glowing,. refulgent, with reflected glare ; Bright Venus occupies a wider way, The early harbinger of night and day ; More distant still our globe terraqueous turns...
Страница 129 - Hence he inferred that, though of equal weight, the bulk of the silver was greater than that of the gold, and that the quantity of water displaced was, in each experiment, equal to the bulk of the metal. He...
Страница 341 - ... disappointed. The third was that which appeared in 1680, and its period being estimated at 575 years cannot, upon that supposition, return until the year 2255. This last comet at its greatest distance is eleven thousand two hundred millions- of miles from the sun, and its least distance from the sun's centre was but...
Страница 351 - How distant some of these nocturnal suns ! So distant (says the sage) 'twere not absurd To doubt if beams, set out at Nature's birth, Are yet arrived at this so foreign world, Though nothing half so rapid as their flight.
Страница 14 - That is a difficult word ? what are we to understand by it ? words, which signify water, and the science which considers the weight of bodies. But hydrostatics, as a branch of natural philosophy, treats of the nature, gravity, pressure, and motion of fluids in general ; and of the methods of weighing solids in them. Charles. Is this an important part of knowledge ? Father.