منابع مشابه
Fictional Women in Mathematics
This article will argue that the situation for female mathematicians in fiction has improved, but that there is still cause for concern. You may wonder why you should care about this at all since these fictional women are (by definition) not real and therefore unlikely to be dues paying members of the AWM! With this in mind, in addition to providing examples of female mathematicians in literatu...
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The Rock Cycle is a useful pedagogical device. Science-fiction novelist James G. Ballard published a colorful description of a nameless fictional world in 1957 that has an artificially closed Rock Cycle. Were such an anthropogenic cycle instigated for Earth, it would be consistent with James Hutton’s viewpoint on the Earth as a self-repairing machine without an endogenetic end to planetary Geol...
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Conspiracy theories are easy to propagate and difficult to refute. Fortunately, until a decade or so ago, few serious conspiracy theories haunted the natural sciences. More recently, however, conspiracy theories have begun to gain ground and, in some cases, have struck a chord with a public already mistrustful of science and government. Conspiracy theorists—some of them scientifically trained—h...
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For some two-player games (e.g. Go), no accurate and inexpensive heuristic is known for evaluating leaves of a search tree. For other games (e.g. chess), a heuristic is known (sum of piece values). For other games (e.g. Hex), only a local heuristic — one that compares children reliably, but nonsiblings poorly — is known (cell voltage drop in the Shannon/Anshelevich electric circuit model). In t...
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ژورنال
عنوان ژورنال: Nature
سال: 2008
ISSN: 0028-0836,1476-4687
DOI: 10.1038/454582a