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 |
Inni boken
Resultat 1-5 av 76
Side xiii
... Places , and have expreffed a fingular Admiration for this Science . Ovid after having anounced in his Fafti , that he propofes celebrating the Principles on which the Divifion of the Roman Year is founded , enters on his Subject by the ...
... Places , and have expreffed a fingular Admiration for this Science . Ovid after having anounced in his Fafti , that he propofes celebrating the Principles on which the Divifion of the Roman Year is founded , enters on his Subject by the ...
Side xxi
... Place of the Moon by Obfervation , and to know how much the Tables differed from it , the Errors every Period afterwards being the fame , and returning in the fame Order : It was Other Obfer in 1722 that this courageous Aftronomer , in ...
... Place of the Moon by Obfervation , and to know how much the Tables differed from it , the Errors every Period afterwards being the fame , and returning in the fame Order : It was Other Obfer in 1722 that this courageous Aftronomer , in ...
Side xxii
... Place , and deducing the Longitude at Sea ; we loft this great Man the 25th of January 1742. Bradley fucceeded him , who inriched Attronomy with his Difcoveries and accurate Obfervations . He departed his Life the 13th of July 1762 , in ...
... Place , and deducing the Longitude at Sea ; we loft this great Man the 25th of January 1742. Bradley fucceeded him , who inriched Attronomy with his Difcoveries and accurate Obfervations . He departed his Life the 13th of July 1762 , in ...
Side xxvi
... place the Earth in the Num- ber of the fimple Planets ; but much still remained to be difcovered : neither the Forms of the Planetary Orbits , nor the Laws by which their Motions . are regulated , were known ; for these important ...
... place the Earth in the Num- ber of the fimple Planets ; but much still remained to be difcovered : neither the Forms of the Planetary Orbits , nor the Laws by which their Motions . are regulated , were known ; for these important ...
Side xxvii
... Places of the Planet , is always the times . proportional to the time which the Planet employs to pafs from one to the other . Some years afterwards , comparing the Times of the Revolutions of the Relation different Planets about the ...
... Places of the Planet , is always the times . proportional to the time which the Planet employs to pafs from one to the other . Some years afterwards , comparing the Times of the Revolutions of the Relation different Planets about the ...
Andre utgaver - Vis alle
Instructions Given in the Drawing School Established by the Dublin Society ... Joseph Fenn Uten tilgangsbegrensning - 1769 |
Vanlige uttrykk og setninger
ABCD alfo alſo arch bafe baſe becauſe Bodies Cafe caufe centrifugal Force circle Cofine Comet cone Confequently cylinder defcribed demonftrated Diameter diſcovered 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 fide AC fimilar fince firft firſt folid fome Force fquare ftraight lines AC fuch fuppofed Gravity greateſt heliocentric Hypothefis impoffible interfect Jupiter lefs Likewife line A B magnitude Meaſure Moon moſt Motion Newton Nodes Number Obfervations oppofite Orbit pafs thro parallelepiped Perihelion plle Prep prifm proportional PROPOSITION pyramid Rays rectilineal figure Revolution Rgle right angles Saturn ſphere Syfigies Syftem Tangent thefe Thefis THEOREM theſe thofe thoſe Tides tion triangle true Anomaly Vafe Wherefore whofe
Populære avsnitt
Side 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.
Side 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.
Side 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.
Side 8 - Let it be granted that a straight line may be drawn from any one point to any other point.
Side xxviii - This depends upon three suppositions: — first, that all celestial bodies whatsoever have an attraction or gravitating power towards their own centres, whereby they attract not only their own parts and keep them from flying from them, as we may observe the earth to do, but that they do also attract all the other celestial bodies that are within the sphere of their activity...
Side 164 - VII. 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...
Side 29 - Therefore if two straight lines, &c. QED COR. 1. From this it is manifest, that, if two straight lines cut one another, the angles they make at the point where they cut, are together equal to four right angles.
Side 29 - Cor. 2. And consequently that all the angles made by any number of lines meeting in one point, are together equal to four right angles.
Side xxviii - Saturn also, by their attractive powers, have a considerable influence upon its motion, as in the same manner the corresponding attractive power of the earth hath a considerable influence upon every one of their motions also.
Side xxviii - The third supposition is that these attractive powers are so much the more powerful in operating, by how much the nearer the body wrought upon is to their own centers. Now what these several degrees are I have not yet experimentally verified...