Editing Appendix/Ramblings/TurningPoints (section)

===Preface===
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Text extracted from p. 162 of <br />{{ Darwin06figure }}
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<!-- [[File:DarwinPreface.png|700px|Darwin (1906) Preface]] -->
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"More than half a century ago &Eacute;douard Roche wrote his celebrated paper on the form assumed by a liquid satellite when revolving, without relative motion, about a solid planet.<sup>*</sup>  In consequence of the singular modesty of Roche's style, and also because the publication was made at Montpellier, this paper seems to have remained almost unnoticed for many years, but it has ultimately attained its due position as a classical memoir."

"The laborious computations necessary for obtaining numerical results were carried out, partly at least, by graphical methods.  Verification of the calculations, which as far as I know have never been repeated, forms part of the work of the present paper.  The distance from a spherical planet which has been called 'Roche's limit' is expressed by the number of planetary radii in the radius vector of the nearest possible infinitesimal liquid satellite, of the same density as the planet, revolving so as always to present the same aspect to the planet.  Our moon, if it were homogeneous, would have the form of one of Roche's ellipsoids; but its present radius vector is of course far greater than the limit.  Roche assigned to the limit in question the numerical value 2.44; it the present paper I show that the true value is 2.455, and the closeness of the agreement with the previously accepted value affords a remarkable testimony to the accuracy with which he must have drawn his figures."

<sup>*</sup>''La figure d'une masse fluide soumise &agrave; l'attraction d'un point &eacute;loign&eacute;,'' 'Acad. des Sci. de Montpellier,' vol. 1, 1847-50, p. 243. 
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<div align="center">[[File:RocheReferences.png|600px|Roche References]]</div>

The following articles by &Eacute;douard Roche have been found via "Google Book" searches:
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  <li>[https://www.google.com/books/edition/_/mGpFAAAAcAAJ?hl=en&sa=X&ved=2ahUKEwiW3Oz_rMn3AhXnomoFHbAcBHMQ7_IDegQICxAC <b>Tome Premier (1847 - 1850):</b>]
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<li>(1848, pp. 113 - 124) &#8212; ''Calcul de l'In&eacute;galit&eacute; parallactique''</li>
<li>(1849, pp. 245 - 262) &#8212; ''M&eacute;moire sur la figure d'une masse fluide, soumise &agrave; 'attraction d'un point &eacute;loign&eacute;. (1<sup>re</sup> Partie.)</li>
<li>(1850, pp. 333 - 348) &#8212; ''M&eacute;moire sur la figure d'une masse fluide, soumise &agrave; 'attraction d'un point &eacute;loign&eacute;. (2<sup>e</sup> Partie.)</li>
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  <li>[https://www.google.com/books/edition/Mémoires_de_la_section_des_sciences/x3gVAAAAQAAJ?hl=en&gbpv=0 <b>Tome Second (1851 - 1854):</b>]
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<li>(1851, pp. 21 - 32) &#8212; ''M&eacute;moire sur la figure d'une masse fluide, soumise &agrave; 'attraction d'un point &eacute;loign&eacute;.</li>
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Also found the following (presumably related) article by &Eacute;d. Roche via a "Google Books" search:
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Acad&eacute;mie des Sciences et Lettres de Montpellier<br />
M&eacute;moires de la Section des Section des Sciences.<br />
<b>Tome Second (1851 - 1854)</b><br />
[https://www.google.com/books/edition/Mémoires_de_la_section_des_sciences/x3gVAAAAQAAJ?hl=en&gbpv=1&dq=d%27une+Masse+Fluide+Soumise&pg=PA21&printsec=frontcover &Eacute;douard Roche &#8212; ''M&eacute;moire sur la figure d'une masse fluide, soumise &agrave; l'attraction d'un point &eacute;loign&eacute;] (pp. 21 - 32)
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