Mathematics for the Million |
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Page 240
... earth's circumference from the elevation of the pole star . The result of this calculation differed only very slightly from the figure given by Eratosthenes . By applying geometry to the real world , mankind was discovering how large a ...
... earth's circumference from the elevation of the pole star . The result of this calculation differed only very slightly from the figure given by Eratosthenes . By applying geometry to the real world , mankind was discovering how large a ...
Page 270
... earth ; Ptolemy made it 170 times . But Aristarchus , by what method he does not state , figured the diameter of the sun at between six and seven times that of the earth , hence about three hundred times its bulk . He sets the moon's ...
... earth ; Ptolemy made it 170 times . But Aristarchus , by what method he does not state , figured the diameter of the sun at between six and seven times that of the earth , hence about three hundred times its bulk . He sets the moon's ...
Page 354
... earth continued upwards cuts the earth's surface . So the declination and right ascension of a star measure the place where the line joining the earth's centre and the star cuts an Pole Star Star Declination 60 ° ᅥ Star LAT . 60 ° N ...
... earth continued upwards cuts the earth's surface . So the declination and right ascension of a star measure the place where the line joining the earth's centre and the star cuts an Pole Star Star Declination 60 ° ᅥ Star LAT . 60 ° N ...
Contents
AUTHORS EXCUSE | xi |
Mathematics the Mirror of Civilization | 17 |
The Dawn of Nothing | 287 |
Copyright | |
7 other sections not shown
Common terms and phrases
Alexandrian algebra approximately Archimedes arithmetic arithmetic series axis base binomial calculation called cards celestial celestial pole celestial sphere centimetres centre Chapter circle circle of latitude column corresponding curve decimal draw dy dx earth equation equivalent Euclid feet figure formula fraction geometric series graph Greek Greenwich height Hindu Hipparchus horizon hour angle hypotenuse inches language latitude length logarithms longitude mathematicians mathematics means measure meridian method miles multiplying noon pack parallel perpendicular plane pole star polygon position problem quantity radians radius ratio rectangle recurring decimal Reformation geometry represented result right angles right-angled triangle rule shadow sides simple sin² sine social spades spherical triangle square root straight line sun's tangent things triangular numbers units verb whole numbers write yards zenith distance