Of mechanics and astronomyJ. Grigg, T. Desilver, E. Littel, Towar & Hogan, and Kimber & Sharpless, 1829 |
מתוך הספר
תוצאות 1-5 מתוך 32
עמוד 25
... observe that the attraction of the glass at , and near BC , will cause the fluid to ascend to B , whereas about the parts D , it scarcely rises above the level of the water in the vessel . Charles . I see that a curve is formed by the ...
... observe that the attraction of the glass at , and near BC , will cause the fluid to ascend to B , whereas about the parts D , it scarcely rises above the level of the water in the vessel . Charles . I see that a curve is formed by the ...
עמוד 25
... observe that the attraction of the glass at , and near BC , will cause the fluid to ascend to B , whereas about the parts D , it scarcely rises above the level of the water in the vessel . Charles . I see that a curve is formed by the ...
... observe that the attraction of the glass at , and near BC , will cause the fluid to ascend to B , whereas about the parts D , it scarcely rises above the level of the water in the vessel . Charles . I see that a curve is formed by the ...
עמוד 44
... observe by this watch that the time of the flight of your brother's arrow is exactly six seconds , to what height does it arise ? Emma . This is a different question , because here the ascent as well as the fall of the arrow is to be ...
... observe by this watch that the time of the flight of your brother's arrow is exactly six seconds , to what height does it arise ? Emma . This is a different question , because here the ascent as well as the fall of the arrow is to be ...
עמוד 47
... observe by re- flecting on the foregoing examples . With this we conclude our present conversa- tion . CONVERSATION IX . Of the Centre of Gravity . Father . We are now going to treat upon the Centre of Gravity , which is that point of a ...
... observe by re- flecting on the foregoing examples . With this we conclude our present conversa- tion . CONVERSATION IX . Of the Centre of Gravity . Father . We are now going to treat upon the Centre of Gravity , which is that point of a ...
עמוד 59
... observe nothing to remind you that there is this resisting medium ; but if you swing it with considerable swiftness , the noise which it occasions will inform you of the resistance it meets with from something , which is the atmo ...
... observe nothing to remind you that there is this resisting medium ; but if you swing it with considerable swiftness , the noise which it occasions will inform you of the resistance it meets with from something , which is the atmo ...
מהדורות אחרות - הצג הכל
מונחים וביטויים נפוצים
24 hours angle annual motion appear Aries astronomers attraction of cohesion axis body called Capricorn centre of gravity centre of motion Charles clock consequently CONVERSATION darkness days and nights degrees diameter distance diurnal motion earth earth's orbit eclipse Emma enlightened equal equator explain fall Father feet figure fixed stars force fulcrum full moon globe greater half harvest moon heat heavens hemisphere hence Herschel horizon inch inclined plane inhabitants James Julius Cæsar larger Leap-Year length less lever Libra light matter mechanical power Mercury millions of miles minutes moon's move nearer observe parallel perpendicular planets Plate VII polar circles poles pound pulleys rays revolves rise rotation round the sun satellite Saturn seasons seen shadow shine sidereal day solar summer sun and earth sun's supposed surface synodical month tance tides tion tropic tropic of Cancer tropic of Capricorn turn Tutor velocity Venus vertical visible weight winter
קטעים בולטים
עמוד 177 - Amid the radiant orbs, That more than deck — that animate — the sky, The life-infusing suns of other worlds ; Lo ! from the dread immensity of space Returning, with accelerated course, The rushing comet to the Sun descends ; And as he sinks below the shading earth, With awful train projected o'er the heavens, 1710 The guilty nations tremble.
עמוד 161 - 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 morn With thy bright circlet, praise him in thy sphere, While day arises, that sweet hour of prime.
עמוד 144 - 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.
עמוד 109 - Of thirty years, to Mercury, whose disk Can scarce be caught by philosophic eye, Lost in the near effulgence of thy blaze.
עמוד 109 - One sun by day, by night ten thousand shine ; And light us deep into the DEITY.
עמוד 126 - evidence of things not seen," in the fulness of Divine grace ; and was profound on this, the greatest concern of human life, while unable even to comprehend how the " inclination of the earth's axis to the plane of its orbit" could be the cause of the change of the seasons.
עמוד 41 - These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw.
עמוד 86 - To ask or search I blame thee not, for heaven Is as the book of God before thee set, Wherein to read his wondrous works, and learn His seasons, hours, or days, or months, or years.
עמוד 28 - If the force with which it strikes the air below it, is equal to the weight of its body, then the re-action of the air upwards is likewise equal to it, and the bird being acted upon by two equal forces in contrary directions, will rest between them. If the force of the stroke is greater than its weight, the bird will rise with the difference of these two forces ; and if the stroke be less than its weight, then it will sink with the difference.
עמוד 134 - But opposite in levell'd west was set His mirror, with full face borrowing her light From him, for other light she needed none In that aspect, and still that distance keeps Till night...