Lessons on the globes1842 |
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Page iv
... kept to its purpose as an effi- cient representative of our planet : the circumstances of its surface being considered , first , in reference to Fixed Stars PREFACE . of very different declination ; and , then iv PREFACE .
... kept to its purpose as an effi- cient representative of our planet : the circumstances of its surface being considered , first , in reference to Fixed Stars PREFACE . of very different declination ; and , then iv PREFACE .
Page v
T H. Howe. PREFACE . of very different declination ; and , then , in reference to the varying declination of the Sun. In the first two sections of Problems several new ones will be found ; and the rules and arrangement of others differ ...
T H. Howe. PREFACE . of very different declination ; and , then , in reference to the varying declination of the Sun. In the first two sections of Problems several new ones will be found ; and the rules and arrangement of others differ ...
Page vii
... declination of a given star , and the places which pass directly underneath it , as the earth rotates V. T. — The declination of a star , & c . , being given ( or the latitude in which it culminates vertically ) , to find to what places ...
... declination of a given star , and the places which pass directly underneath it , as the earth rotates V. T. — The declination of a star , & c . , being given ( or the latitude in which it culminates vertically ) , to find to what places ...
Page viii
... declination given . Conversely , Having a star , & c , given , to find its right ascension and declination . . XVII . T. - To find the difference of longitude between any two places ; and the hour of the day at the one place being given ...
... declination given . Conversely , Having a star , & c , given , to find its right ascension and declination . . XVII . T. - To find the difference of longitude between any two places ; and the hour of the day at the one place being given ...
Page x
... declination for our noon of that day , to find where she will be vertical at that noon , nearly 314 F. C. - Given , the moon full on the 23d of September , to find the times of her rising for several preceding and following evenings ...
... declination for our noon of that day , to find where she will be vertical at that noon , nearly 314 F. C. - Given , the moon full on the 23d of September , to find the times of her rising for several preceding and following evenings ...
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Common terms and phrases
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
Popular passages
Page 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.
Page 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...
Page 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.
Page 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.
Page 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...
Page 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...
Page 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.
Page 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...
Page 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.
Page 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.