A Short History of AstronomyScribner, 1899 - 440 páginas |
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Otras ediciones - Ver todas
Términos y frases comunes
acceleration accuracy afterwards Almagest angle appears Aristotle astronomical attraction axis Bradley Bradley's bright calculation catalogue celestial bodies celestial sphere centre century chapter circle comet Coppernicus deduced direction discovery distance double stars earth eccentricity eclipse epicycle equant equator error estimate evidence explained fact fixed stars Galilei gravitation Greek Halley's comet hence Herschel Hipparchus idea important inequalities instruments irregularities Jupiter Jupiter's Kepler known Lagrange Laplace less light longitude lunar theory Mars mathematical mathematicians measured Mercury method minor planets modern moon moon's moving nearly nebulae Newton nutation observations Observatory orbit parallax path period planetary motions pole position precession Principia probably problem Ptolemy Ptolemy's published recognised regarded Regiomontanus result revolution revolving round rotation round the sun satellites Saturn scientific seen shewed shewn sidereal period solar system spectrum spherical sun and moon sun's tables telescope tion transit of Venus treatise Tycho various Venus
Pasajes populares
Página 216 - I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
Página 197 - All this was in the two plague years of 1665 and 1666, for in those days I was in the prime of my age for invention, and minded mathematics and philosophy more than at any time since.
Página 309 - I have seen double and treble nebulae variously arranged; large ones with small, seeming attendants ; narrow, but much extended lucid nebulae or bright dashes; some of the shape of a fan, resembling an electric brush issuing from a lucid point...
Página 415 - THE REALM OF NATURE An Outline of Physiography. By HUGH ROBERT MILL, D.Sc. Edin.; Fellow of the Royal Society of Edinburgh ; Oxford Lecturer. Maps and 68 Illustrations. 12mo, $1.50 net. CONTENTS : Story of Nature— Substance of Nature — Power of Nature — The Earth a Spinning Ball — The Earth a Planet — The Solar System and Universe — The Atmosphere — Atmospheric Phenomena — Climates — The Hydrosphere — Bed of the Oceans — Crust of the Earth — Action of Water on Land — -Record...
Página 312 - They are now seen to resemble a luxuriant garden, which contains the greatest variety of productions, in different flourishing beds ; and one advantage we may at least reap from it is, that we can, as it were, extend the range of our experience to an immense duration. For, to continue the simile I have borrowed...
Página 151 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Página 6 - The Ram, the Bull, the Heavenly Twins And next the Crab, the Lion shines, the Virgin and the Scales, The Scorpion, Archer and Sea-Goat, the Man that holds the Watering Pot, And Fish with Glittering Tails.
Página 197 - In the beginning of the year 1665 I found the method of approximating Series and the Rule for reducing any dignity of any Binomial into such a series.
Página 200 - To every action there is always an equal and contrary reaction ; or the mutual actions of any two bodies are always equal and oppositely directed.
Página 237 - At last I conjectured that all the Phenomena hitherto mentioned, proceeded from the progressive Motion of Light and the Earth's Annual Motion in its Orbit. For I perceived that, if Light was propagated in Time, the apparent Place of a fixed Object would not be the same when ' the Eye is at Rest, as when it is moving in any other Direction, than that of the Line passing through the Eye and the Object ; and that, when the Eye is moving in different Directions, the apparent Place of the Object would...