# Changes related to "The Advance of Science in the Last Half-Century"

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#### 10 December 2016

- (diff | hist) . . Johannes Kepler; 15:51 . . (+263) . . ELApro (talk | contribs) (→Quotes about Kepler: Bell, "The Development of Mathematics": Desargues discussed..Kepler's principleof continuity, in which a straight line is closed at infinity and parallels meet there)
- (diff | hist) . . Johannes Kepler; 15:23 . . (+355) . . ELApro (talk | contribs) (→Quotes about Kepler: Kline, "Mathematical Thought..Ancient to Modern..": Kepler & Desargues) regarded the two "ends" of the ["straight"] line as meeting at "infinity"..structure of a circle..with its center at infinity)
- (diff | hist) . . Johannes Kepler; 15:13 . . (+28) . . ELApro (talk | contribs) (→External links: Category:Mathematicans)
- (diff | hist) . . Johannes Kepler; 14:44 . .
**(+564)** . . ELApro (talk | contribs) (→Quotes about Kepler: Coxeter, "Projective Geometry": 200 yrs before Poncelet a point at infinity occurred independently to Kepler & Desargue..''Paralipomena in Vitellionem''-parabola has 2 foci, 1 "blind focus" a infinity in opposite directions)

#### 9 December 2016

- (diff | hist) . . Johannes Kepler; 23:17 . .
**(+1,130)** . . ELApro (talk | contribs) (→Quotes about Kepler: copied from Gregory St. Vincent-Kline, Mathematical Thought..Ancient to Modern..": on Keplers contirbutions to the development of Projective Geometry) - (diff | hist) . . Johannes Kepler; 22:31 . . (+433) . . ELApro (talk | contribs) (→Quotes about Kepler: Labenbacher, Pengelley, "'Mathematical Expeditions": free use if indivisibles..astronomical/volumes of wine casks..wrote an extensive tract on indivisible methods..e.g., areas: circle & ellipse)
- (diff | hist) . . Galileo Galilei; 22:20 . . (+455) . . ELApro (talk | contribs) (→Quotes about Galilei: Labenbacher, Pengelley, "'Mathematical Expeditions": laws of freely falling bodies and the parabolic paths of projectiles..initiating era of mathc'l physics..''Two New Sciences'' used indivisibles method->book planned/not written)

#### 7 December 2016

- (diff | hist) . . Isaac Newton; 21:18 . . (+1) . . 192.48.10.5 (talk) (Spelling mistake) (Tag: Visual edit)