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" ... in the motions of p are very numerous. Lastly, that part of the disturbing force which acts in the direction of a line pm, fig. 13, at right angles to the plane of the orbit Npn, may be called the perpendicular force. "
An Elementary Treatise on Astronomy. ... - Page xli
by Robert Woodhouse - 1818 - 487 pages
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On the Free Motion of Points, and on Universal Gravitation: Including the ...

William Whewell - 1832 - 286 pages
...velocity as 1 — c : 1 . The motion of the apse of the orbit of a satellite, so far as it depends on the part of the disturbing force which acts in the direction of the radius PT, may be calculated by finding the mean value of this disturbing force (which we shall do hereafter)...
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Astronomy

sir John Frederick W. Herschel (1st bart.) - 1833 - 500 pages
...to be explained by Newton from his theory of gravitation. (554.) We come now to consider the effects of that part of the disturbing force which acts in the direction of the radius vector, and tends to alter the law of gravity, and therefore to derange, in a more direct and sensible...
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Astronomy

John Frederick William Herschel - 1833 - 444 pages
...to be explained by Newton from his theory of gravitation. (554.) We come now to consider the effects of that part of the disturbing force which acts in the direction of the radius vector, and tends to alter the law of gravity, and therefore to derange, in a more direct and sensible...
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Unity of Purpose, Or Rational Analysis: Being a Treatise Designed to ...

Augustus Young - 1846 - 304 pages
...Murdock has given a method of computing the mean motion of the moon's apogee, by first considering only that part of the disturbing force which acts in the direction of the radius ; and then instead of supposing the earth to be at rest, by conceiving the earth and moon to revolve...
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On the Connection of the Physical Sciences

Mary Somerville - 1846 - 496 pages
...velocities in ellipses, the perturbations or changes in the motions of P are very numerous. Lastly, that part of the disturbing force which acts in the direction of a line pm, fig. 13, at right angles to the plane of the orbit Npn, may be called the perpendicular...
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On the Connexion of the Physical Sciences

Mary Somerville - 1849 - 568 pages
...velocities in ellipses, the perturbations or changes in the motions of p are very numerous. Lastly, that part of the disturbing force which acts in the direction of a line pm, fig. 13, at right angles to the plane of the orbit Npn, may be called the perpendicular...
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The Elements of Astronomy: Or, The World as it Is, and as it Appears

Anna Cabot Lowell - 1850 - 412 pages
...motions of Jupiter and Saturn, has a period of no less than 918 years. § 375. The radial force, or that part of the disturbing force which. acts in the direction of the line joining the centres of the sun and disturbed planet, has no effect on the areas, but is the cause...
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History of Physical Astronomy: From the Earliest Ages to the Middle of the ...

Robert Grant - 1852 - 686 pages
...upon the disturbing force. (47.) The progressive movement of the line of apsides is mainly due to the part of the disturbing force which acts in the direction of the radius rector. For, in the first place, the tangential force vanishes altogether at the point of conjunction,...
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A Glossary of Scientific Terms for General Use

Alexander Henry - 1861 - 226 pages
...outer bone of the forearm ; in astronomy, applied, in the theory of variable orbits, to that component part of the disturbing force which acts in the direction of the radius vector. Ea'diant (Lat. ra'dius, a ray). Sending out rays, as from a centre. Ba,lia'ta (Lat. ra'dius,...
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