Instructions Given in the Drawing School Established by the Dublin Society: Course of mathematicks. System of the physical world. System of the moral world. Plan of the military art. Plan of the marcantile arts. Plan of naval art. Plan of mechanic arts. The elements of EuclidA. M'Culloch, 1769 |
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Seite xvi
... round , useful in the Eclipfes of the Moon taught how to determine the Longitudes of Geography and Naviga the different Countries of the World , or their mutual Distances from tion , and Eaft to Weft . The Discovery of the Satellites of ...
... round , useful in the Eclipfes of the Moon taught how to determine the Longitudes of Geography and Naviga the different Countries of the World , or their mutual Distances from tion , and Eaft to Weft . The Discovery of the Satellites of ...
Seite xxv
... round which the Heaven- ly Bodies revolved . II . Discoveries The Babylonians from examining the Appearances of Sence were the of the Baby- first who discovered the Earth to be round , and the Sun to be the Cen- lonians , and ter of the ...
... round which the Heaven- ly Bodies revolved . II . Discoveries The Babylonians from examining the Appearances of Sence were the of the Baby- first who discovered the Earth to be round , and the Sun to be the Cen- lonians , and ter of the ...
Seite xxvi
... round the Sun , to revolve with him round the Earth , in the Space of 24 Hours ; thus retaining the most exceptionable Part of Ptolomy's Syf- tem , viz . the inconceivable Rapidity with which the primum Mobile is fuppofed to revolve ...
... round the Sun , to revolve with him round the Earth , in the Space of 24 Hours ; thus retaining the most exceptionable Part of Ptolomy's Syf- tem , viz . the inconceivable Rapidity with which the primum Mobile is fuppofed to revolve ...
Seite xxxi
... round the Sun , as their Center tial bodies and Secondary Planets , otherwife , called Satellites , which revolve round their of our plane tary fyftem respective Primaries as Centers : There are fix Primary Planets whofe into princi ...
... round the Sun , as their Center tial bodies and Secondary Planets , otherwife , called Satellites , which revolve round their of our plane tary fyftem respective Primaries as Centers : There are fix Primary Planets whofe into princi ...
Seite xxxii
... round the World . ( a ) Orbit is the Curve which a Planet defcribes in revolving round the Body which ferves it as a Center . ( b ) Wolf's Elements of Aftronomy . V. All that we know therefore concerning the primary Planets XXXII SYSTEM ...
... round the World . ( a ) Orbit is the Curve which a Planet defcribes in revolving round the Body which ferves it as a Center . ( b ) Wolf's Elements of Aftronomy . V. All that we know therefore concerning the primary Planets XXXII SYSTEM ...
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ABCD alfo alſo arch bafe baſe becauſe Bodies Cafe circle Cofine Comet cone Confequently cylinder defcribed demonftrated DEMONSTRATION diameter difcovered Diſtance draw the ftraight Earth ECAUSE Ecliptic equal Equator equiangular equimultiples fame altitude fame manner fame multiple fame plane fame ratio fecond fegment fhall fhewing fhould fimilar fince firft firſt folid fome Force fphere fquare ftraight lines AC fuch fuppofed given Gravity greateſt heliocentric Hypothefis impoffible interfect Jupiter leaft lefs Likewife line A B magnitude Meaſure Moon moſt Motion Newton Nodes Number Obfervations oppofite Orbit paffes pafs parallelepiped parallelogram Perihelion plle Prep prifm proportional PROPOSITION pyramid Rays rectilineal figure Revolution Rgle right angles Saturn Syfigies Syftem Tangent thefe Thefis THEOREM theſe thofe thoſe thro Tides tion triangle true Anomaly Vafe Wherefore whofe
Beliebte Passagen
Seite 8 - Let it be granted that a straight line may be drawn from any one point to any other point.
Seite 4 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Seite 164 - When of the equimultiples of four magnitudes (taken as in the fifth definition), the multiple of the first is greater than that of the second, but the multiple of the third is not greater than the multiple of the fourth ; then the first is said to have to the second a greater ratio than the third magnitude has to the fourth : and, on the contrary, the third is said to have to the fourth a less ratio than the first has to the second. VIII. " Analogy, or proportion, is the similitude of ratios.
Seite 165 - When four magnitudes are continual proportionals, the first is said to have to the fourth the triplicate ratio of that which it has to the second, and so on, quadruplicate, &c., increasing the denomination still by unity, in any number of proportionals.
Seite 241 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc.
Seite xxviii - ... bodies that are within the sphere of their activity, and consequently, that not only the sun and moon have .an influence upon the body and motion of the earth, and the earth upon them, but that...
Seite 165 - When three magnitudes are proportionals, the first is said to have to the third the duplicate ratio of that which it has to the second.
Seite 226 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides.
Seite xiv - Oh! qui m'arrêtera sous vos sombres asiles? Quand pourront les neuf Sœurs, loin des cours et des villes, M'occuper tout entier, et m'apprendre des deux Les divers mouvements inconnus à nos yeux, Les noms et les vertus de ces clartés errantes Par qui sont nos destins et nos mœurs différentes.
Seite xxviii - Now what these several degrees are I have not yet experimentally verified; but it is a notion which, if fully prosecuted, as it ought to be, will mightily assist the astronomers to reduce all the celestial motions to a certain rule, which I doubt will never be done true without it.