John Playfair

John Playfair FRSE, FRS (10 March 1748 – 20 July 1819) was a Church of Scotland minister, remembered as a scientist and mathematician, and a professor of natural philosophy at the University of Edinburgh. He is best known for his book ''Illustrations of the Huttonian Theory of the Earth'' (1802), which summarised the work of James Hutton. It was through this book that Hutton's principle of uniformitarianism, later taken up by Charles Lyell, first reached a wide audience. Playfair's textbook ''Elements of Geometry'' made a brief expression of Euclid's parallel postulate known now as Playfair's axiom.

In 1783 he was a co-founder of the Royal Society of Edinburgh. He served as General Secretary to the society 1798–1819. Provided by Wikipedia
Showing 141 - 160 results of 162 for search 'Playfair, John, 1748-1819', query time: 0.24s Refine Results
  1. 141
    Elements of geometry containing the first six books of Euclid, with a supplement on the quadrature of the circle and the geometry of solids : to which are added Elements of plane and spherical trigonometry /
    by Euclid
    Published 1819
    Other Authors: “...Playfair, John, 1748-1819...”

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  2. 142
    Elements of geometry: containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids: to which are added Elements of plane and spherical trigonometry
    by Euclid
    Published 1839
    Other Authors: “...Playfair, John, 1748-1819...”

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  3. 143
    Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids : to which are added, Elements of plane and spherical trigonometry /
    by Euclid
    Published 1819
    Other Authors: “...Playfair, John, 1748-1819...”

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  4. 144
    Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle and the geometry of solids : to which are added, Elements of plane and spherical trigonometry /
    by Euclid
    Published 1804
    Other Authors: “...Playfair, John, 1748-1819...”

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  5. 145
    Elements of geometry: containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids: to which are added, elements of plane and spherical trigonometry
    by Euclid
    Published 1868
    Other Authors: “...Playfair, John, 1748-1819...”

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  6. 146
    Elements of geometry containing the first six books of Euclid, with a supplement on the properties of the circle, the intersections of planes and the geometry of solids /
    by Euclid
    Published 1814
    Other Authors: “...Playfair, John, 1748-1819...”

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  7. 147
    Elements of geometry: containing the first six books of Euclid, with a supplement on the quadrature of the circle and the geometry of solids; to which are added elements of plane and spherical trigonometry
    by Euclid
    Published 1819
    Other Authors: “...Playfair, John, 1748-1819...”

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  8. 148
    Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle and the geometry of solids /
    by Euclid
    Published 1814
    Other Authors: “...Playfair, John, 1748-1819...”

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  9. 149
    Elements of geometry: containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids; to which are added, Elements of plane and spherical geometry
    by Euclid
    Published 1845
    Other Authors: “...Playfair, John, 1748-1819...”

    Book
  10. 150
    Elements of geometry : containing the first six books of Euclid, with two books on the geometry of solids : to which are added, elements of plane and spherical trigonometry /
    by Euclid
    Published 1795
    Other Authors: “...Playfair, John, 1748-1819...”

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  11. 151
    Elements of geometry : containing the first six books of Euclid, with a supplement on the quadrature of the circle and the geometry of solids : to which are added Elements of plane and spherical trigonometry /
    by Euclid
    Published 1850
    Other Authors: “...Playfair, John, 1748-1819...”

    Book
  12. 152
    Elements of Geometry : Being chiefly a selection from Playfair's Geometry, with additions and improvements from the fifth english edition
    Published 1829
    Other Authors: “...Playfair, John, 1748-1819...”

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  13. 153
    Elements of geometry : containing the first six books of Euclid, with a supplement on the properties of the circle, the intersections of planes and the geometry of solids /
    by Euclid
    Published 1814
    Other Authors: “...Playfair, John, 1748-1819...”

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  14. 154
    Dissertations on the progress of knowledge
    Published 1975
    Other Authors: “...Playfair, John, 1748-1819...”

    Thesis Book
  15. 155
    Elements of plane geometry according to Euclid /
    by Bell, Andrew
    Published 1837
    Other Authors: “...Playfair, John, 1748-1819...”

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  16. 156
    Supplement to Playfair's Geometry and Wood's Algebra : completing a course of mathematics, in theory and practice /
    Other Authors: “...Playfair, John, 1748-1819...”

    Book
  17. 157
    Elements of plane geometry according to Euclid /
    by Bell, Andrew
    Published 1837
    Other Authors: “...Playfair, John, 1748-1819...”

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  18. 158
    Elements of geometry: containing the first six books of Euclid, with a supplement on the quadrature of the circle, and the geometry of solids: to which are added, elements of plane and spherical trigonometry. /
    by Euclid
    Published 1835
    Other Authors: “...Playfair, John, 1748-1819...”

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  19. 159
    Dissertations on the history of metaphysical and ethical, and of mathematical and physical science;
    Published 1842
    Other Authors: “...Playfair, John, 1748-1819...”

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  20. 160
    Dissertations on the history of metaphysical and ethical, and of mathematical and physical science;
    Published 1842
    Other Authors: “...Playfair, John, 1748-1819...”

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