On the Connexion of the Physical SciencesJ. Murray, 1858 - 523 pages |
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Page 18
... Consequently , the nodes are perpetually advancing or receding with unequal velocity ; but , as a compensation is not effected , their motion is , on the whole , retrograde . With regard to the variations in the inclination , it is ...
... Consequently , the nodes are perpetually advancing or receding with unequal velocity ; but , as a compensation is not effected , their motion is , on the whole , retrograde . With regard to the variations in the inclination , it is ...
Page 29
... and maintained them , notwithstanding the secular inequalities to which they are liable . They extend to the synodic motions ( N. 92 ) of the satellites ; consequently they SECT . IV . PERTURBATIONS OF THE SATELLITES . 29.
... and maintained them , notwithstanding the secular inequalities to which they are liable . They extend to the synodic motions ( N. 92 ) of the satellites ; consequently they SECT . IV . PERTURBATIONS OF THE SATELLITES . 29.
Page 35
... consequently renders it more elliptical . The period of this inequality is less than thirty - two days . Were the increase and diminution always the same , the Evection would only depend upon the distance of the moon from the sun ; but ...
... consequently renders it more elliptical . The period of this inequality is less than thirty - two days . Were the increase and diminution always the same , the Evection would only depend upon the distance of the moon from the sun ; but ...
Page 36
... consequently , depends upon the time of the year . In the eclipses the Annual Equation combines with the Equation of the Centre of the terrestrial orbit , so that ancient astronomers imagined the earth's orbit to have a greater excen ...
... consequently , depends upon the time of the year . In the eclipses the Annual Equation combines with the Equation of the Centre of the terrestrial orbit , so that ancient astronomers imagined the earth's orbit to have a greater excen ...
Page 37
... Consequently the attraction of the earth has had a more and more powerful effect on the moon , and has been con- tinually diminishing the size of the lunar orbit . So that the moon's velocity has been gradually augmenting for many centu ...
... Consequently the attraction of the earth has had a more and more powerful effect on the moon , and has been con- tinually diminishing the size of the lunar orbit . So that the moon's velocity has been gradually augmenting for many centu ...
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61 Cygni absorbed action appears atmosphere attraction bismuth blue bodies centre centrifugal force chemical circular polarization coloured rings comet consequently copper crystal dark density diamagnetic diameter diminishes direction distance disturbing earth ecliptic effect electricity equal equator ethereal medium excentricity experiments extreme force gravitation greater heat hemisphere increase intensity Jupiter latitude length lines liquid longitude luminous lunar magnetic mass mean meridian metallic miles molecules moon motion move nebula nodal lines nodes NOTE nutation observed optic axis orbit parallax paramagnetic particles passing perihelion period perpendicular phenomena plane polarized light pole position prism produced quantity rays reflected refraction refrangible retrograde motion revolution revolving right angles rotation round satellites Sir John Herschel solar spectrum sound space stars substances sun's surface telescope temperature terrestrial theory tion tourmaline transmitted tricity undulations Uranus vapour velocity vibrations violet visible Voltaic waves wire