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 |
From inside the book
Results 1-5 of 15
Page 119
... astronomers assert , that with the naked eye you cannot at one [ time see so many as a thou- sand . Charles . I should indeed have thought with my brother , had you not asserted the contrary ; and I am anxious to know how the deception ...
... astronomers assert , that with the naked eye you cannot at one [ time see so many as a thou- sand . Charles . I should indeed have thought with my brother , had you not asserted the contrary ; and I am anxious to know how the deception ...
Page 124
... astronomers , yet the original division of the stars into these collections , was one of those few arbitrary ... astronomer . Charles . I have often heard of the north pole star ; that will perhaps answer the purpose of the sun ...
... astronomers , yet the original division of the stars into these collections , was one of those few arbitrary ... astronomer . Charles . I have often heard of the north pole star ; that will perhaps answer the purpose of the sun ...
Page 129
... astronomers of all countries , for by this means the science is in possession of a sort of universal language . Charles . Will you explain how this is ? Tutor . Suppose an astronomer in North America , Asia , or any other part of the ...
... astronomers of all countries , for by this means the science is in possession of a sort of universal language . Charles . Will you explain how this is ? Tutor . Suppose an astronomer in North America , Asia , or any other part of the ...
Page 130
... astronomers in dif- ferent countries should agree to mark the same stars and systems of stars by the same charac- ters . But to return to that star , to which you just called my attention , the cor leonis , it is not only a remarkable ...
... astronomers in dif- ferent countries should agree to mark the same stars and systems of stars by the same charac- ters . But to return to that star , to which you just called my attention , the cor leonis , it is not only a remarkable ...
Page 133
... Astronomer Royal , and is published by anticipation for several years beforehand , for the convenience of ships going out upon long voyages . This work has been found eminently important in the course of the late voyages round the world ...
... Astronomer Royal , and is published by anticipation for several years beforehand , for the convenience of ships going out upon long voyages . This work has been found eminently important in the course of the late voyages round the world ...
Other editions - View all
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...