Scientific Dialogues: Intended for the Instruction and Entertainment of Young People: in which the First Principles of Natural and Experimental Philosophy are Fully Explained, Volume 1J. Grigg, T. Desilver, 1829 - Science |
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Page 131
... Jupiter , Saturn , and the Herschel , are never more than eight degrees distant from the line of the ecliptic . James . How can we trace this line , by help of the fixed stars ? Tutor . By comparing the stars in the hea- vens , with ...
... Jupiter , Saturn , and the Herschel , are never more than eight degrees distant from the line of the ecliptic . James . How can we trace this line , by help of the fixed stars ? Tutor . By comparing the stars in the hea- vens , with ...
Page 137
... Jupiter . ↑ Mars . The Earth , The Sun. Q Venus . Mercury . The Moon , With the other characters you have no need to trouble yourselves , till you come to calculate eclipses , and construct astronomical tables , a labour which may be ...
... Jupiter . ↑ Mars . The Earth , The Sun. Q Venus . Mercury . The Moon , With the other characters you have no need to trouble yourselves , till you come to calculate eclipses , and construct astronomical tables , a labour which may be ...
Page 142
... Jupiter is in Pisces , 13 ° . .35 ' . Charles . There are some short columns at the bottom of the former page that you have omitted . Tutor . The use of these will be better under- stood when we come to converse respecting the planets ...
... Jupiter is in Pisces , 13 ° . .35 ' . Charles . There are some short columns at the bottom of the former page that you have omitted . Tutor . The use of these will be better under- stood when we come to converse respecting the planets ...
Page 145
... Mars in e ; then Jupiter in the circleƒ ; afterwards Saturn in g ; and far beyond him the Herschel planet performs his revolution in the VOL . I. - N 2 circle h . Do you recollect the lines in Thom- OF THE SOLAR SYSTEM . 145.
... Mars in e ; then Jupiter in the circleƒ ; afterwards Saturn in g ; and far beyond him the Herschel planet performs his revolution in the VOL . I. - N 2 circle h . Do you recollect the lines in Thom- OF THE SOLAR SYSTEM . 145.
Page 148
... Jupiter far distant gleams , Scarcely enlighten'd with the solar beams : With four unfix'd receptacles of light He towers majestic through the spacious height ; But farther yet the tardy Saturn lags , And seven attendant luminaries ...
... Jupiter far distant gleams , Scarcely enlighten'd with the solar beams : With four unfix'd receptacles of light He towers majestic through the spacious height ; But farther yet the tardy Saturn lags , And seven attendant luminaries ...
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Common terms and phrases
advantage gained angle appear astronomers attraction of cohesion attraction of gravitation axis ball body called centre of gravity centre of motion Charles clock consequently CONVERSATION days and nights degrees diameter distance diurnal motion earth ecliptic Emma Ephemeris equal equator explain fall Father feet fixed stars force fulcrum full moon globe greater half heat heavens hemisphere hence Herschel horizon inch inclined plane James journey Jupiter kind law of motion length less lever light line of direction marble Mars matter means mechanical power Mercury millions of miles minutes moon's move nearer observe orbit papa perpendicular philosophy planets polar circles poles pound pound weight principle proportion pulleys rays reason retrograde motion revolves rise rotation round the sun Saturn screw seen sidereal day Solar System space passed sun's superior planets suppose surface tides tion turn Tutor velocity Venus visible wedge weight
Popular passages
Page 223 - 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.
Page 206 - 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.
Page 75 - Powers, are certain simple instruments, commonly employed for raising greater weights, or overcoming greater resistances, than could be effected by the natural strength without them. These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw.
Page 250 - When even at last the solemn hour shall come, And wing my mystic flight to future worlds, I cheerful will obey; there, with new powers, Will rising wonders sing. I cannot go Where universal love not smiles around, Sustaining all yon orbs, and all their suns; From seeming evil still educing good, And better thence again, and better still, In infinite progression.
Page 120 - 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.
Page 188 - 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.
Page 239 - 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, The guilty nations tremble.
Page 198 - Were slunk, all but the wakeful nightingale ; She all night long her amorous descant sung; Silence was pleas'd: now glow'd the firmament With living sapphires; Hesperus, that led The starry host, rode brightest, till the moon Rising in clouded majesty, at length Apparent queen unveil'd her peerless light, And o'er the dark her silver mantle threw.
Page 60 - It is a law of nature, with respect to matter, that every motion and change of motion is proportional to the force impressed, and in the direction of that force.
Page 196 - 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...