Popular Astronomy: A Series of Lectures Delivered at IpswichMacmillan, 1868 - 292 sider |
Inni boken
Resultat 1-5 av 28
Side 15
... square to the surface of the glass . The vertical direction at any place is that of a plumb- line hanging there , or perpendicular to the surface of still water . then the course of the light would be bent downwards LECTURE I. 15.
... square to the surface of the glass . The vertical direction at any place is that of a plumb- line hanging there , or perpendicular to the surface of still water . then the course of the light would be bent downwards LECTURE I. 15.
Side 24
... , the brass meridian of a common globe is not what is called a small circle , but it divides the globe into two equal parts . For that purpose it is necessary that the telescope CD should be square to its axis AB 24 POTULAR ASTRONOMY .
... , the brass meridian of a common globe is not what is called a small circle , but it divides the globe into two equal parts . For that purpose it is necessary that the telescope CD should be square to its axis AB 24 POTULAR ASTRONOMY .
Side 25
... square to its axis AB . The astronomer ascertains whether it be truly square or not , by looking at a distant mark , first with the pivots A , B , of the instrument resting on the piers a , b , and then with the axis turned over , so ...
... square to its axis AB . The astronomer ascertains whether it be truly square or not , by looking at a distant mark , first with the pivots A , B , of the instrument resting on the piers a , b , and then with the axis turned over , so ...
Side 29
... square , one arm has made one fourth of the complete turn round from the other ; and as we call the whole circle 360 degrees , one fourth of the turn round when the com- passes are square is 90 degrees , and we say that the stars are 90 ...
... square , one arm has made one fourth of the complete turn round from the other ; and as we call the whole circle 360 degrees , one fourth of the turn round when the com- passes are square is 90 degrees , and we say that the stars are 90 ...
Side 35
... square to each other , and therefore one leg has been turned away from the other by one - fourth part of the movement which would bring it round to the other again , or by one - fourth part of 360 degrees . distance on the north side of ...
... square to each other , and therefore one leg has been turned away from the other by one - fourth part of the movement which would bring it round to the other again , or by one - fourth part of 360 degrees . distance on the north side of ...
Andre utgaver - Vis alle
Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Uten tilgangsbegrensning - 1868 |
Popular Astronomy: A Series of Lectures Delivered at Ipswich George Biddell Airy Uten tilgangsbegrensning - 1868 |
Vanlige uttrykk og setninger
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
Populære avsnitt
Side 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.
Side 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.
Side 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.
Side 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.
Side 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.
Side 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.
Side 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.
Side 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.
Side 9 - THE BIBLE IN THE CHURCH. A Popular Account of the Collection and Reception of the Holy Scriptures in the Christian Churches.
Side 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.