. Mécanique céleste . spherical stratum[470»] ^jjj |jg* u^du . dà . de. sin. ê. If we then put / for the distance of this element from the attracted point, we shall havef [471] f=^r- — è-Jru\ [471] Let US denote by f{f), the law of attraction at the distance f ; the actionof the element of the stratum, upon the attracted point,î resolved in a * (333) Li tlie adjoined figure, which is similar to tliatin page 18], M is Û\e attracted point, situated on thecontinuation of the diameter p C P ; C the centre of thespherical stiatum PEpR; PEp the great circle fromwhich the angle zi ^ E C Q is

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. Mécanique céleste . spherical stratum[470»] ^jjj |jg* u^du . dà . de. sin. ê. If we then put / for the distance of this element from the attracted point, we shall havef [471] f=^r- — è-Jru\ [471] Let US denote by f{f), the law of attraction at the distance f ; the actionof the element of the stratum, upon the attracted point,î resolved in a * (333) Li tlie adjoined figure, which is similar to tliatin page 18], M is Û\e attracted point, situated on thecontinuation of the diameter p C P ; C the centre of thespherical stiatum PEpR; PEp the great circle fromwhich the angle zi ^ E C Q is counted ; P Jl a Qp,PBb qp, two great circles drawn through the poles P,p,infinitely near to each other ; E (^gR SE the greatcircle, whose poles are P, p; Jl B, a h, arcs of circlesparaUelto^ç. CA^u, CM=r, ang]e ACM=ê,Q^q=zudzs, A B ^ udss .sin. ê, Aa^^udA ; hencethe space ABba=^u^.é. ; this multiplied hytlie Uiickness of the stratum du, gives its mass, ? du. d zi. d è . sin. è, as in [470]..

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Keywords: ., bookcentury1800, booksubjectcelestialmechanics, booksubjecttides