Scientific Dialogues,: Of mechanicsBaldwin and Cradock; and R. Hunter, 1828 |
מתוך הספר
תוצאות 1-5 מתוך 28
עמוד 67
... equal distances from the poles . Charles . And I think you told us , that if we conceived this circle ex- tended every way to the fixed stars it would form the celestial equator . Tutor . I did ; it is also called the equinoctial , and ...
... equal distances from the poles . Charles . And I think you told us , that if we conceived this circle ex- tended every way to the fixed stars it would form the celestial equator . Tutor . I did ; it is also called the equinoctial , and ...
עמוד 95
... 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 . But if you refer to the principle of the lever ...
... 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 . But if you refer to the principle of the lever ...
עמוד 97
... equal , the velocity of the earth must be be- tween two and three hundred thou- sand times greater than that of the sun . Tutor . Just so and to effect this , the centre of gravity between the sun and earth , will be as much nearer to ...
... equal , the velocity of the earth must be be- tween two and three hundred thou- sand times greater than that of the sun . Tutor . Just so and to effect this , the centre of gravity between the sun and earth , will be as much nearer to ...
עמוד 99
... respect to the sun . Charles . But if the earth turn round its imaginary axis every 24 hours , ought it not to enjoy equal days and nights all the year ? Tutor . This would be the case if the axis K 2 OF THE SEASONS . 99 Of the Seasons.
... respect to the sun . Charles . But if the earth turn round its imaginary axis every 24 hours , ought it not to enjoy equal days and nights all the year ? Tutor . This would be the case if the axis K 2 OF THE SEASONS . 99 Of the Seasons.
עמוד 100
... in darkness : or , in other words , the days and nights would be equal to all the inhabitants of the earth , excepting to those , if any , who live at the poles ? James . Why do you except the people at the 100 ASTRONOMY .
... in darkness : or , in other words , the days and nights would be equal to all the inhabitants of the earth , excepting to those , if any , who live at the poles ? James . Why do you except the people at the 100 ASTRONOMY .
מהדורות אחרות - הצג הכל
מונחים וביטויים נפוצים
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
קטעים בולטים
עמוד 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.
עמוד 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.
עמוד 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.
עמוד 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!
עמוד 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.
עמוד 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.
עמוד 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.
עמוד 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...
עמוד 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...
עמוד 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...