The International Conference on Business & Technology Transfer
Online ISSN : 2433-295X
Print ISSN : 1347-8834
ISSN-L : 1347-8834
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Origin of the Concept of Screws is in the Spiral and Helices of Nature
Masanori OgataYorikazu Shimotsuma
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会議録・要旨集 フリー

p. 116-121

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抄録
Once upon a time, a primitive man was gathering the shellfishes for food. He found a conch. He pierced and turned a stick in order to take out the flesh. This is said to have been the first moment that human being encountered the screw. On another opportunity, a mankind had found that trees were coiled around by ivy or vine in a forest. It is said that the idea of screw spiral or helix was invented by this observation. Furthermore, authors consider the snake myths that distributed over the Eastern and Western world will be another origin of the idea of screws. Screw is indispensable as a present-day machine element. To the origin of the screw, nature and myths will be considered. In this paper, origin and development of screw concept in the ancient Greco-Roman world, Asia Minor, Mesopotamia, China, and Japan are researched from the results of fieldwork and reference's investigation.
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© 2005 一般社団法人 日本機械学会
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