North J.D. The Astrolabe

North J.D. The Astrolabe
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Scientific American, 230 (1974), pp. 96-106
Научно-популярная статья, посвященная практике использования и истории главного астрономического инструмента средневековья - астролябии. Автор - известный специалист в области истории астрономии. На английском языке.

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