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  • 1
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    The @British journal for the history of science 21 (1988), S. 401-417 
    ISSN: 0007-0874
    Source: Cambridge Journals Digital Archives
    Topics: History , Natural Sciences in General
    Notes: The development of systematic mathematics requires writing, and hence a non-literate culture cannot be expected to advance mathematics beyond the stage of numeral words and counting. The hundreds of languages of the Australian aborigines do not seem to have included any extensive numeral systems. However, the common assertions to the effect that ‘Aborigines have only one, two, many’ derive mostly from reports by nineteenth century Christian missionaries, who commonly understood less mathematics than did the people on whom they were reporting. Of course, in recent decades almost all Aborigines have been involved with the dominant European-style culture of Australia, and even those who are not literate have mostly learned to use English-style numerals and to handle money. Similar qualifications should be understood when speaking of any recent primitive culture.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    The @British journal for the history of science 22 (1989), S. 241-242 
    ISSN: 0007-0874
    Source: Cambridge Journals Digital Archives
    Topics: History , Natural Sciences in General
    Notes: The renowned notebook of the twelfth-century architect Villard de Honnecourt contains some deleted diagrams, which have been studied by Roland Bechmann. An infra-red photograph of a page revealing an erased drawing of a pointed arch is reproduced as Fig. 25, a redrawn diagram is given as Fig. 26 and an enhanced version (with supplementary constructions) is given as Fig. 27. That enhanced version includes a simple geometrical construction of a line AE, with the radius of each of the semi-circles labelled as R.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    The @British journal for the history of science 17 (1984), S. 233-234 
    ISSN: 0007-0874
    Source: Cambridge Journals Digital Archives
    Topics: History , Natural Sciences in General
    Type of Medium: Electronic Resource
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