Gems and Gem Minerals
نویسندگان
چکیده
منابع مشابه
Combinatorial Gems
Although this lecture does not contain many offical Olympiad problems, the arguments which are used are all common elements of Olympiad problem solving. Some of these perhaps could have made nice Olympiad problems, if not for the fact that they were already well-known due to their importance in higher mathematics. Most of this is sourced from the excellent combinatorics course developed by Benn...
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Gemology is one of the first sciences about which ancient scholars and scientists of Iran and the Islamic world have written treatises. The economic, administrative and documentary aspects of gems in Islamic governments and before them show the importance of this part of science in different periods. The main part of Jawāher-namās (books of gems) has always been dedicated to methods of identify...
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ژورنال
عنوان ژورنال: Science
سال: 1904
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.20.505.307