Mechanism of the HeavensJ. Murray, 1831 - 621 pages |
From inside the book
Results 1-5 of 100
Page xii
... assumed that the action of the whole system in disturbing any one planet is equal to the sum of all the par- ticular disturbances it experiences , on the general mechanical principle , that the sum of any number of small oscillations is ...
... assumed that the action of the whole system in disturbing any one planet is equal to the sum of all the par- ticular disturbances it experiences , on the general mechanical principle , that the sum of any number of small oscillations is ...
Page xv
... assumed to be fixed at a given epoch for the convenience of astronomical computa- tion , is subject to a minute secular variation of 52 " , 109 , occa- sioned by the reciprocal action of the planets ; but as this is also periodical ...
... assumed to be fixed at a given epoch for the convenience of astronomical computa- tion , is subject to a minute secular variation of 52 " , 109 , occa- sioned by the reciprocal action of the planets ; but as this is also periodical ...
Page xliii
... assumed to be spheres , their volumes will be as the cubes of their diameters . Now the apparent diameters of the sun and earth at their mean distance , are 1922 " and 17 " .08 , and the mass of the earth is the 5th part of that of the ...
... assumed to be spheres , their volumes will be as the cubes of their diameters . Now the apparent diameters of the sun and earth at their mean distance , are 1922 " and 17 " .08 , and the mass of the earth is the 5th part of that of the ...
Page xlv
... of January of the first year of Cæsar ; the 25th of December in his 45th year , is con- sidered as the date of Christ's nativity ; and Cæsar's 46th year is assumed to be the first of our era . The PRELIMINARY DISSERTATION . xlv.
... of January of the first year of Cæsar ; the 25th of December in his 45th year , is con- sidered as the date of Christ's nativity ; and Cæsar's 46th year is assumed to be the first of our era . The PRELIMINARY DISSERTATION . xlv.
Page xlvi
Mary Somerville. assumed to be the first of our era . The preceding year is called the first year before Christ by chronologists , but by astronomers it is called the year ( ) . The astronomical year begins on the 31st of December at ...
Mary Somerville. assumed to be the first of our era . The preceding year is called the first year before Christ by chronologists , but by astronomers it is called the year ( ) . The astronomical year begins on the 31st of December at ...
Other editions - View all
Common terms and phrases
A₁ action angle ascending node attraction axes axis B₁ becomes c'mv centre of gravity centrifugal force co-ordinates coefficients comets computed conic sections consequently cosines curve density depending determined differential direction disturbing forces dR dR dt dt earth eccentricity ecliptic elements epoch equal equilibrium equinoxes expression fixed plane fluid functions give hence inclination indefinitely small integral Jupiter latitude mass mean anomaly mean distance mean longitude mean motion moon moon's move nearly observation omitted orbit of Jupiter oscillations parallax particle perigee perihelion periodic inequalities perturbations planets preceding equation preceding values radius vector ratio regard rotation satellites Saturn secular inequalities secular variations sidereal sine spheroid square substituted surface system of bodies terrestrial theory tion true longitude Uranus velocity whence zero