Popular Astronomy: A Series of Lectures Delivered at IpswichMacmillan, 1868 - 292 σελίδες |
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Σελίδα 17
... Suppose a beam of light is coming in the direction AB from a star , and suppose that at B it comes on the atmo- sphere it is coming then here exactly under the same circumstances in which in Figure 5 the beam of light comes upon the ...
... Suppose a beam of light is coming in the direction AB from a star , and suppose that at B it comes on the atmo- sphere it is coming then here exactly under the same circumstances in which in Figure 5 the beam of light comes upon the ...
Σελίδα 20
... Suppose , now , that the stand GH is placed on the south side of A , and that a lamp is slid along it suc- cessively from B to C , D , E , and F. This movement exactly imitates the apparent movement of the stars as they pass across the ...
... Suppose , now , that the stand GH is placed on the south side of A , and that a lamp is slid along it suc- cessively from B to C , D , E , and F. This movement exactly imitates the apparent movement of the stars as they pass across the ...
Σελίδα 21
... Suppose that we have before us a celestial globe , with stars and other objects upon it . How are we to define the positions of those ? The thing to which I desire to call your attention is this that where we have anything of a surface ...
... Suppose that we have before us a celestial globe , with stars and other objects upon it . How are we to define the positions of those ? The thing to which I desire to call your attention is this that where we have anything of a surface ...
Σελίδα 25
... Suppose that in turning the transit instrument round its axis AB , the line CDE prolonged will trace on the sky the line GI or FK , as the case may be . The Polar Star in its revolution passes that line twice . Now , what we want is ...
... Suppose that in turning the transit instrument round its axis AB , the line CDE prolonged will trace on the sky the line GI or FK , as the case may be . The Polar Star in its revolution passes that line twice . Now , what we want is ...
Σελίδα 31
... Suppose that a star is seen by the observer to be approaching the meridian , he places a trough of quicksilver O in such a direction that the star can be seen by reflection in the quicksilver . When the telescope is pointed towards the ...
... Suppose that a star is seen by the observer to be approaching the meridian , he places a trough of quicksilver O in such a direction that the star can be seen by reflection in the quicksilver . When the telescope is pointed towards the ...
Άλλες εκδόσεις - Προβολή όλων
Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Πλήρης προβολή - 1868 |
Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Πλήρης προβολή - 1868 |
Συχνά εμφανιζόμενοι όροι και φράσεις
aberration of light accurate angle angular distance appear ascertain astronomers ball body bright star calculation Cambridge Cape Cavendish experiment celestial clock cloth College computed Crown 8vo curve described diameter direction disturbed earth earth's axis earth's centre earth's equator ecliptic Edition effect ellipse endeavoured equatoreal exactly explain Fcap Figure fluid globe Greenwich heavens horizon hour inclination Jupiter lecture length lunar precession Mars mean density method millions of miles moon mountain move Mural Circle nearly North Pole nutation object observations Observatory orbit parallax passes the meridian path pendulum perpendicular planets plumb-line point of Aries Polar Star position precession produced proportion pull refraction remark revolve rotation round the sun satellites seen sidereal day solar South Pole spheroid square sun's attraction sun's distance suppose supposition surface tance telescope thing tion transit instrument transit of Venus TREATISE triangle velocity vertical vibrations whole yard measure Zenith Sector
Δημοφιλή αποσπάσματα
Σελίδα 282 - HODGSON -MYTHOLOGY FOR LATIN VERSIFICATION. A brief Sketch of the Fables of the Ancients, prepared to be rendered into Latin Verse for Schools. By F. HODGSON, BD, late Provost of Eton. New Edition, revised by FC HODGSON, MA i8mo. y. HOMER— THE ODYSSEY. Done into English by SH BUTCHER, MA, Fellow of University College, Oxford, and ANDREW LANG, MA, late Fellow of Merton College, Oxford.
Σελίδα 9 - A GENERAL SURVEY OF THE HISTORY OF THE CANON OF THE NEW TESTAMENT DURING THE fIRST FOUR CENTURIES. Fourth Edition. With Preface on "Supernatural Religion.
Σελίδα 9 - WILSON— THE BIBLE STUDENT'S GUIDE to the more Correct Understanding of the English Translation of the Old Testament, by reference to the original Hebrew. By WILLIAM WILSON, DD, Canon of Winchester, late Fellow of Queen's College, Oxford. Second Edition, carefully revised. 4to. cloth. 25*. YONGE (CHARLOTTE M.)— SCRIPTURE READINGS FOR SCHOOLS AND FAMILIES. By CHARLOTTE M. YONGE, Author of "The Heir of Redclyffe.
Σελίδα 288 - CHRISTIE— A COLLECTION OF ELEMENTARY TESTQUESTIONS IN PURE AND MIXED MATHEMATICS; with Answers and Appendices on Synthetic Division, and on the Solution of Numerical Equations by Homer's Method. By JAMES R. CHRISTIE, FRS, Royal Military Academy, Woolwich. Crown 8vo. 8s. 6d. CLIFFORD— THE ELEMENTS OF DYNAMIC.
Σελίδα 285 - HELLENICA; OR, A HISTORY OF GREECE IN GREEK, as related by Diodorus and Thucydides ; being a First Greek Reading Book, with explanatory Notes, Critical and Historical.
Σελίδα 292 - Parts I., II., and III., 2s. 6d. each. SHILLING BOOK OF ARITHMETIC FOR NATIONAL AND ELEMENTARY SCHOOLS. i8mo, cloth. Or separately, Part I. 2d. ; Part II.
Σελίδα 285 - THE SEVEN KINGS OF ROME. An Easy Narrative, abridged from the First Book of Livy by the omission of difficult passages, being a First Latin Reading Book, with Grammatical Notes.
Σελίδα 289 - AN ELEMENTARY TREATISE ON THE LUNAR THEORY, with a Brief Sketch of the Problem up to the time of Newton. Second Edition, revised. Crown 8vo. cloth. 5*. 6d. Hemming. — AN ELEMENTARY TREATISE ON THE DIFFERENTIAL AND INTEGRAL CALCULUS, for the Use; of Colleges and Schools.
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Σελίδα 289 - HEMMING— AN ELEMENTARY TREATISE ON THE DIFFERENTIAL AND INTEGRAL CALCULUS, for the Use of Colleges and Schools. By GW HEMMING, MA, Fellow of St. John's College, Cambridge. Second Edition, with Corrections and Additions. 8vo.