Lu Gwei-Djen – författare
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2 produkter
2 produkter
Inbunden, Engelska, 1980
4 202 kr
Skickas inom 7-10 vardagar
The fifth volume of Dr Needham's immense undertaking, like the fourth, is subdivided into parts for ease of assimilation and presentation, each part bound and published separately. The volume as a whole covers the subjects of alchemy, early chemistry, and chemical technology (which includes military invention, especially gunpowder and rockets; paper and printing; textiles; mining and metallurgy; the salt industry; and ceramics).
Häftad, Engelska, 2004
599 kr
Skickas inom 7-10 vardagar
Between the fourteenth and the eighteenth centuries, there was created under the Yi Dynasty in Korea a remarkable series of astronomical instruments, star-charts and clocks. The present volume is the result of close collaboration between four distinguished historians of Asian science to demonstrate the context, purpose, nature and specific workings of these early scientific instruments. Specially commissioned drawings and other illustrations demonstrate their complexities of design and operation. A brief introduction is given to the Chinese background of Korean astronomy and astronomical instrument-making and to the renaissance of Korean astronomy in the early fifteenth century. In a detailed examination of the instruments made under the supervision of King Sejong in the 1430s, there is documentation of the re-equipping of the Royal Observatory, with identification of the individual instruments involved. A survey of the succeeding two centuries gives the background to Song Iyong's instrument, identified as a demonstrational armillary sphere in the Koryo University Museum.