Hand-book of Natural Philosophy and Astronomy: 3d Course. Meteorology - Astronomy |
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Other editions - View all
Hand-Book of Natural Philosophy and Astronomy (Classic Reprint) Dionysius Lardner No preview available - 2015 |
Hand-Book of Natural Philosophy and Astronomy (Classic Reprint) Dionysius Lardner No preview available - 2018 |
Common terms and phrases
altitude angular aphelion apparent diameter apparent magnitudes apparent motion appears ascertained astronomical atmosphere attraction axis body celestial equator celestial sphere centre circle clouds comet consequently decrease density direction disk disturbing force diurnal diurnal motion earth ecliptic effect elongation equal equinox excentricity explained feet firmament globe gravity greater greatest heat height hemisphere horizon increase inferior conjunction inferior planet interval Jupiter latitude less light line of apsides line of conjunction longitude lunar mass mean distance mean temperature meridian micrometric miles moon moon's moves nearly nodes object observed orbit parallax parallel passing perihelion period phenomena planet pole position produced progressive motion quadrature radial component ratio rays regressive revolving right angles right ascension ring rotation satellites Saturn seen semi-diameters solar spheroid star strata stratum sun's surface synodic period synodic revolution syzygies tangential tangential component telescope terrestrial tion Uranus vapour variation varies velocity visible zenith
Popular passages
Page 797 - So sung The glorious train ascending : He through heaven, That open'd wide her blazing portals, led To God's eternal house direct the way, A broad and ample road, whose dust is gold, And pavement stars...
Page 243 - ... a constant state of change. There is nothing which represents so faithfully this appearance as the slow subsidence of some flocculent chemical precipitates in a transparent fluid, when viewed perpendicularly from above...
Page 152 - ... that when a ray of light passes from a rarer into a denser transparent medium, it is deflected towards the perpendicular to their common surface ; and that the amount of such deflection increases with the difference of densities and the angle of incidence (978 et seq.).
Page 453 - I did not notice any beams projecting from it which deserved notice as much more conspicuous than the others, but the whole was beamy, radiated in structure, and terminated — though very indefinitely — in a way which reminded me of the ornament frequently placed round a mariner's compass. Its colour was white, or resembling that of Venus. I saw no flickering or unsteadiness of light. It was not separated from the moon by any dark ring, nor had it any annular structure. It looked like a radiated...
Page 101 - This interval is divided, like a common day, into 24 hours, each hour into 60 minutes, and each minute into 60 seconds. Since...
Page 164 - ... one from north to south, and the other from east to west. The direction of this compound effect would, by the principles of the composition of motion (M.
Page 209 - Vesuvius and elsewhere ; but with the remarkable peculiarity that the bottoms of many of the craters are very deeply depressed below the general surface of the moon, the internal depth being in many cases two or three times the external height.
Page 229 - Ostend, toward which the wind was blowing, contrary effects were observed. During strong north-westerly gales the tide marks high water earlier in the Thames than otherwise, and does not give so much water, while the ebb tide runs out late, and marks lower; but upon the gales abating and weather moderating, the tides put in and rise much higher, while they also run longer before high water is marked, and with more velocity of current: nor do they run out so long or so low.
Page 410 - It has been shown (2795) that the axis of the planet is inclined to the plane of its orbit at an angle of 26° 48' 40", and is, like the axis of the earth, carried parallel to itself round the sun.
Page 386 - mathematically perfect in their circular form, and exactly concentric with the planet, it is demonstrable that they would form (in spite of their centrifugal force) a system in a state of unstable equilibrium, which the slightest external power would subvert — not by causing a rupture in the substance of the rings — but by precipitating them, unbroken, on the surface of the planet.