Popular Astronomy, Volume 23; Volume 1915Goodsell Observatory of Carleton College, 1915 |
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Common terms and phrases
Androm appear Aquarii Aquilae asteroids astronomical Aurigae bright Camelop canals Cancri Cassiop Cephei Ceti color comet constellation Cygni Day Est.Obs Decl Delphini diameter distance Draconis earth eclipse ecliptic Ephemeris equator Gemin Greenwich mean Harvard College Observatory Herculis Hydrae July June Lacertae latitude Leonis Lick Observatory lines longitude Lowell Observatory Lyrae magnitude Mars measures meridian meteors miles Milky Mo.Day Est.Obs Monoc month moon motion nebula night Ophiuchi orbit Orionis parallax Pegasi period Persei photographic planet planetary plates pole POPULAR ASTRONOMY position Professor proper motion radial velocity Sagittarii satellites Scorpii Scuti seen Sept signals solar spectra Spots SS Cygni stellar sun's Tauri telescope terrestrial tude U. S. Naval Observatory VARIABLE STAR VARIABLE STAR OBSERVATIONS Virginis visible Vulpec Zodiacal Light
Popular passages
Page 536 - ... in the development of the Earth, in the development of Life upon its surface, in the development of Society, of Government, of Manufactures, of Commerce, of Language, Literature, Science, Art, this same evolution of the simple into the complex, through successive differentiations, holds throughout. From the earliest traceable cosmical changes down to the latest results of civilization, we shall find that the transformation of the homogeneous into the heterogeneous, is that in which Progress essentially...
Page 256 - A Brief Account of the Lick Observatory of the University of California ; prepared by Edward S.
Page 490 - ... the effort fell through. There was not public spirit enough in the State Society, or in the state, to carry it out. In fact, we were opposed by the philanthropists and people. coming year or two, and to try to put this whole subject on a rational scientific ground? I, therefore, offer a resolution that a committee of three or five be appointed by the President, to take up this matter and report to this Society, with the view of organizing a new State institution with the purposes and plans outlined...
Page 536 - Whether it be in the development of the Earth, in the development of Life upon its surface, in the development of Society, of Government, of Manufactures, of...
Page 536 - The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living.
Page 82 - All bodies continue in a state of rest, or of uniform motion in a straight line, unless acted upon by some external force that compels a change.
Page 536 - Sirius is more than a thousand times more massive than our sun, or' that the sun is more than a million times larger than the earth on which we live. But there is nothing in these or similar facts, which is not in accordance with our ideas respecting the constitution of the universe.
Page 148 - The spiral theory is fertile in suggesting new considerations for interpreting the immense variety of special phenomena of the system. It is not too much to expect that it may suggest new questions for observational investigation. It affords geologists new conceptions of the early history of the Earth. But perhaps its most interesting contribution is to our general philosophy of nature. Heretofore we have regarded the cosmical processes as forever aggregating matter into larger and still larger bodies,...
Page 92 - A cos 6 = cos a cos c + sin a sin c cos B cos c = cos a cos 6 + sin a sin 6 cos C Law of Cosines for Angles cos A = — cos B...
Page 662 - These phenomena agree with the supposition that the stars of our firmament, instead of being scattered in all directions indifferently through space, form a stratum, of which the thickness is small, in comparison with its length and breadth ; and in which the earth occupies a place somewhere about the middle of its thickness, and near the point where it subdivides into two principal laminae, inclined at a small angle to each other.