History of Astronomy |
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Page iii
attempt has been made in these pages to trace the evolution of intellectual
thought in the progress of astronomical discovery, and, by recognising the
different points of view of the different ages, to give due credit even to the
ancients. No one ...
attempt has been made in these pages to trace the evolution of intellectual
thought in the progress of astronomical discovery, and, by recognising the
different points of view of the different ages, to give due credit even to the
ancients. No one ...
Page v
As each new discovery opens up, it may be, boundless oceans for investigation,
for wonder, and for admiration, the great astronomers, refusing to accept mere
hypotheses as true, have founded upon these discoveries a science as exact in
its ...
As each new discovery opens up, it may be, boundless oceans for investigation,
for wonder, and for admiration, the great astronomers, refusing to accept mere
hypotheses as true, have founded upon these discoveries a science as exact in
its ...
Page vii
... EULER, LAGRANGE, LAPLACE, ETC. . . . . . . . . . . . . . Discovery of NEw PLAN
Ets—HERSCHEL, PIAzzi, ADAMS, AND LE VERRIER. . . . . . PAGE iii 3o 4O 57
64 74 8I IO. Book III OBSERVATION INSTRUMENTS OF PRECISION — SIZE OF
...
... EULER, LAGRANGE, LAPLACE, ETC. . . . . . . . . . . . . . Discovery of NEw PLAN
Ets—HERSCHEL, PIAzzi, ADAMS, AND LE VERRIER. . . . . . PAGE iii 3o 4O 57
64 74 8I IO. Book III OBSERVATION INSTRUMENTS OF PRECISION — SIZE OF
...
Page 16
Then again, Knobel reminds us of “the most interesting discovery a few years ago
by Father Strassmeier of a Babylonian tablet recording a partial lunar eclipse at
Babylon in the seventh year of Cambyses, on the fourteenth day of the Jewish ...
Then again, Knobel reminds us of “the most interesting discovery a few years ago
by Father Strassmeier of a Babylonian tablet recording a partial lunar eclipse at
Babylon in the seventh year of Cambyses, on the fourteenth day of the Jewish ...
Page 24
... stars so as to know if any others appeared or disappeared. Here his
experiences resembled those of several later astronomers, who, when in search
of some special object, have been rewarded by a discovery in a totally different
direction.
... stars so as to know if any others appeared or disappeared. Here his
experiences resembled those of several later astronomers, who, when in search
of some special object, have been rewarded by a discovery in a totally different
direction.
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accurate Airy ancient Astronomer Royal astronomical units bright calculations Cape catalogue centre century Chaldaeans Chinese comet Copernicus diameter discovered discovery earth Egyptian epicycles equatorial error excentric explain fact fixed stars Galileo Greenwich Halley heavenly bodies heavens heliometer Hipparchus History of Astronomy Huggins instruments JOHANNEs KEPLER John Herschel Jupiter Jupiter's Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance measured ment Mercury meteor miles a second moon nebulae Newton º º observations Observatory orbit parallax period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil records refractor retrograde retrograde motion revolving round ring rotation satellites Saturn seems showing Sir William Herschel Sirius solar eclipse solar system spectra spectroscope spectrum sphere spots stellar sun-spot supposed tables telescope theory tion Trans Tycho Brahe universal gravitation Uranus velocity Venus Verrier
Popular passages
Page 67 - 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.
Page 26 - So he sate and cunningly guided the craft with the helm, nor did sleep fall upon his eyelids, as he viewed the Pleiads and Bootes, that setteth late, and the Bear, which they likewise call the Wain, which turneth ever in one place, and keepeth watch upon Orion, and alone hath no part, in the baths of Ocean. This star, Calypso, the fair goddess, bade him to keep ever on the left as he traversed the deep.
Page 53 - The third, viz. that the squares of the periodic times are proportional to the cubes of the mean distances...
Page 79 - Wherefore if according to what we have already said it should return again about the year 1758, candid posterity will not refuse to acknowledge that this was first discovered by an Englishman.
Page 122 - ... They have not been regarded as so successful as his geometrical analysis of the observed phenomena. It is only just to add that he himself did not attach equal weight to them ; for in answer to objections urged by Lalande to his theory that the spots are depressions, Wilson wrote thus in 1783 : — ' Whether their first production and subsequent numberless changes depend upon the eructation of elastic vapours from below, or upon eddies or whirlpools commencing at the surface, or upon the dissolving...
Page 51 - He then said boldly that it was impossible that so good an observer as Tycho could be wrong by eight minutes* and added, " out of these eight minutes we will construct a new theory that will explain the motions of all the planets.
Bibliographic information
| Title | History of Astronomy Hist. of sci. series History of the sciences |
| Author | George Forbes |
| Publisher | Putnam, 1909 |
| Original from | the University of California |
| Digitized | 29 Nov 2007 |
| Length | 200 pages |
| Export Citation | BiBTeX EndNote RefMan |