Lessons on the globes1842 |
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Side 10
... become the head of a barrel sufficiently capacious to contain the earth , ( a globe in a cylinder , ) the surface of that disk so enlarged , would describe " the plane of the horizon . " It may further be con- ceived to extend around to ...
... become the head of a barrel sufficiently capacious to contain the earth , ( a globe in a cylinder , ) the surface of that disk so enlarged , would describe " the plane of the horizon . " It may further be con- ceived to extend around to ...
Side 21
... become a Diameter . Apply this experiment to the theorem on the page we have just attended to , and we shall see that 10 feet multi- plied by the diameter of our earth , must , if the observation be correct , be equal to the square of ...
... become a Diameter . Apply this experiment to the theorem on the page we have just attended to , and we shall see that 10 feet multi- plied by the diameter of our earth , must , if the observation be correct , be equal to the square of ...
Side 61
... become cramped and stiffened by the constraint of one posture , while my eye ached and throbbed with its vain attempts to pierce the thick courses of clouds sweeping past . At last I did get sight of the star , for three or four seconds ...
... become cramped and stiffened by the constraint of one posture , while my eye ached and throbbed with its vain attempts to pierce the thick courses of clouds sweeping past . At last I did get sight of the star , for three or four seconds ...
Side 114
... becoming , by this wondrous ordination of the Creator , a star of ever - changing declination ; and , in the course of the year , or period of complete revolution , shedding its vertical rays in a range of latitude from 23 ° 28 ′ north ...
... becoming , by this wondrous ordination of the Creator , a star of ever - changing declination ; and , in the course of the year , or period of complete revolution , shedding its vertical rays in a range of latitude from 23 ° 28 ′ north ...
Side 131
... becomes increasingly suffused with it at the noon of each revolution : then follow the noons of the appearance of increasing portions of his disk ; and then again , his rising and setting , to give , first , a day of minutes ...
... becomes increasingly suffused with it at the noon of each revolution : then follow the noons of the appearance of increasing portions of his disk ; and then again , his rising and setting , to give , first , a day of minutes ...
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Vanlige uttrykk og setninger
altitude appear Arcturus astronomers atmosphere attraction axis azimuth beams Boötes brass meridian brazen meridian Bridgewater Treatise bring the given Canis Major Cape CELESTIAL GLOBE centre centrifugal force circle coincide consequently constellations corresponding culminating declination diameter difference direction disk distance diurnal diurnal arc earth earth's surface east eastward ecliptic electricity elevated equal equator equinoctial exactly feet fluid Fomalhaut force Frigid Zone given place heat heavenly body hemisphere Hence Herschel horizon inclined inhabitants instant John Herschel Jupiter Jupiter's latitude length light London longitude magnet mass midnight miles minutes moon moon's motion nearly node noon north pole oblique observations orbit parallax particles pass period plane portion position PROBLEM pupil quadrant rays right ascension rising rotation satellites Saturn seen shadow sidereal day solar south pole sphere star sun's place supposed telescope TERRESTRIAL GLOBE tion twilight Uranus vapour velocity Venus vertical whilst zenith
Populære avsnitt
Side 244 - For thus saith the Lord that created the heavens; God himself that formed the earth and made it; he hath established it, he created it not in vain, he formed it to be inhabited: I am the Lord; and there is none else.
Side 6 - The one has suggested to me that, beyond and above all that is visible to man, there may lie fields of creation which sweep immeasurably along, and carry the impress of the Almighty's hand to the remotest scenes of the universe : the other suggests to me...
Side xi - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Side 403 - This disregard is neither supercilious nor causeless. The constellations seem to have been almost purposely named and delineated to cause as much confusion and inconvenience as possible. Innumerable snakes twine through long and contorted areas of the heavens, where no memory call follow them ; bears, lions, and fishes, large and small, northern and southern, confuse all nomenclature, &c.
Side 397 - Venus a pea, on a circle of 284 feet in diameter ; the Earth also a pea, on a circle of 430 feet ; Mars a rather large pin's head, on a circle of 654 feet ; the Asteroids, grains of sand, in orbits of from 1000 to 1200 feet; Jupiter a moderate-sized orange, in a circle nearly half a mile across...
Side 227 - As he sat alone in a garden, he fell into a speculation on the power of gravity ; that as this power is not found sensibly diminished at the remotest distance from the centre of the earth, to which we can rise, neither at the tops of the loftiest buildings, nor even on the summits of the highest mountains ; it appeared to him reasonable to conclude, that this power must extend much...
Side 161 - God," as was said by the ancients, "works by geometry:" the legislation of the material universe is necessarily delivered in the language of mathematics ; the stars in their courses are regulated by the properties of conic sections, and the winds depend on arithmetical and geometrical progressions of elasticity and pressure.
Side 284 - ... the earth. The fall of meteoric stones is much more frequent than is generally believed. Hardly a year passes without some instances occurring ; and if it be considered that only a small part of the earth is inhabited, it may be presumed that numbers fall...
Side 6 - I tread upon, the other redeems it from all its insignificance, for it tells me that in the leaves of every forest, and in the flowers of every garden, and in the waters of every rivulet, there are worlds teeming with life, and numberless as the glories of the firmament.
Side 214 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.