Scientific Dialogues,: Of mechanicsBaldwin and Cradock; and R. Hunter, 1828 - Astronomy |
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Page 95
... attraction , you know , their mo menta must be equal , therefore the earth being the smaller body , makes out by its motion what it wants in the quantity of its matter , and , of course , it is that which performs the journey . James ...
... attraction , you know , their mo menta must be equal , therefore the earth being the smaller body , makes out by its motion what it wants in the quantity of its matter , and , of course , it is that which performs the journey . James ...
Page 167
... attraction of the sun and moon upon the waters , but more particularly by that of the latter . You will readily conceive that the tides are dependent upon some known and determinate laws , because , if you turn to White's Ephemeris ...
... attraction of the sun and moon upon the waters , but more particularly by that of the latter . You will readily conceive that the tides are dependent upon some known and determinate laws , because , if you turn to White's Ephemeris ...
Page 172
... attraction of the moon , and a tide is accordingly produced ; but when , by the earth's rotation , T comes , 12 hours afterwards , into the position a , another tide is occasioned by the receding of the waters there from the centre ...
... attraction of the moon , and a tide is accordingly produced ; but when , by the earth's rotation , T comes , 12 hours afterwards , into the position a , another tide is occasioned by the receding of the waters there from the centre ...
Page 173
... attraction is the strongest , and con- sequently it raises the tides most ; and when she is farthest from the earth , • her attraction is the least , and the tides the Q3 OF THE TIDES . 173.
... attraction is the strongest , and con- sequently it raises the tides most ; and when she is farthest from the earth , • her attraction is the least , and the tides the Q3 OF THE TIDES . 173.
Page 174
Jeremiah Joyce. her attraction is the least , and the tides the lowest . James . Do they rise to different heights in different places ? Tutor . They do : in the Black Sea ... attraction . Sir Isaac Newton com puted , that the 174 ASTRONOMY .
Jeremiah Joyce. her attraction is the least , and the tides the lowest . James . Do they rise to different heights in different places ? Tutor . They do : in the Black Sea ... attraction . Sir Isaac Newton com puted , that the 174 ASTRONOMY .
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Common terms and phrases
24 hours 95 millions annual motion appear Aries astronomers axis called centre Charles clock comet consequently CONVERSATION dark days and nights degrees dial diameter discovered distance diurnal motion earth's orbit ecliptic enlightened Ephemeris equal equator figure fixed stars full moon globe greater half heavens heliocentric hemisphere hence Herschel horizon inhabitants James journey round Julius Cæsar Jupiter larger latitude Leap-Year less Libra light and heat longitude magnitude Mars means Mercury meridian millions of miles minutes moon's nearer nearest noon observe parallel pass polar circles position rays retrograde motion revolves rise and set rotation round the earth round the sun satellites Saturn seasons seen shadow shine sidereal day situated Solar System spectator summer sun and earth sun's superior planets supposed surface synodical month tance thousand tides tion top-mast tropic tropic of Cancer turn Tutor tween Venus vertical visible winter
Popular passages
Page 133 - 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 166 - 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 231 - 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.
Page 89 - In endless speculation, and adore ? One sun by day, by night ten thousand shine ; And light us deep into the Deity ; How boundless in magnificence and might!
Page 197 - 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 196 - 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 me, suns to light me rise; My foot-stool earth, my canopy the skies.
Page 6 - 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 148 - 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...
Page 53 - Prime cheerer, light! Of all material beings first, and best ! Efflux divine ! Nature's resplendent robe ! Without whose vesting beauty all were wrapt In unessential gloom ; and thou, O sun ! Soul of surrounding worlds, in whom best seen Shines out thy Maker...
Page 196 - But do these worlds display their beams, or guide Their orbs, to serve thy use, to please thy pride ? Thyself but dust; thy stature but a span, A moment thy duration; foolish man! As well may the minutest emmet say, That Caucasus was...