History of Astronomy |
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Page 61
Galileo — a good Catholic — got mixed up in these discussions, although on
excellent terms with the Pope and his entourage. At last it came about that
Galileo was summoned to appear at Rome, where he was charged with holding
and ...
Galileo — a good Catholic — got mixed up in these discussions, although on
excellent terms with the Pope and his entourage. At last it came about that
Galileo was summoned to appear at Rome, where he was charged with holding
and ...
Page 62
Galileo died on Christmas Day, 1642 — the day of Newton's birth. The further
consideration of the grand field of discovery opened out by Galileo with his
telescopes must be now postponed, to avoid discontinuity in the history of the
intellectual ...
Galileo died on Christmas Day, 1642 — the day of Newton's birth. The further
consideration of the grand field of discovery opened out by Galileo with his
telescopes must be now postponed, to avoid discontinuity in the history of the
intellectual ...
Page 97
The discovery by Galileo of the isochronism of the pendulum, followed by
Huyghens's adaptation of that principle to clocks, has been one of the greatest
aids to accurate observation. About the same time an equally beneficial step was
the ...
The discovery by Galileo of the isochronism of the pendulum, followed by
Huyghens's adaptation of that principle to clocks, has been one of the greatest
aids to accurate observation. About the same time an equally beneficial step was
the ...
Page 109
In 1609 Galileo, being in Venice, heard of the invention, went home and worked
out the theory, and made a similar telescope. These telescopes were all made
with a convex object-glass and a concave eye-lens, and this type is spoken of as
...
In 1609 Galileo, being in Venice, heard of the invention, went home and worked
out the theory, and made a similar telescope. These telescopes were all made
with a convex object-glass and a concave eye-lens, and this type is spoken of as
...
Page 119
When Galileo directed his telescope to the heavens, when Secchi and Huggins
studied the chemistry of the stars by means of the spectroscope, and when
Warren De la Rue set up a photoheliograph at Kew, we see that a progress in the
same ...
When Galileo directed his telescope to the heavens, when Secchi and Huggins
studied the chemistry of the stars by means of the spectroscope, and when
Warren De la Rue set up a photoheliograph at Kew, we see that a progress in the
same ...
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Common terms and phrases
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 |