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・ Silkeborg Museum
・ Silkeborg Reggae Festival
・ Silkeborg Stadion
・ Silkeborg-Hallerne
・ Silken Hotel
・ Silken Laumann
・ Silken Shackles
・ Silken Windhound
・ Silkerode
・ Silkheart Records
・ Silkie
・ Silkie (disambiguation)
・ Silkies
・ Silkijhar
・ Silkin
Silk
・ Silk & Soul
・ Silk & Steel (Five Star album)
・ Silk (2006 film)
・ Silk (2007 film)
・ Silk (album)
・ Silk (comics)
・ Silk (disambiguation)
・ Silk (group)
・ Silk (novel)
・ Silk (plant milk)
・ Silk (TV series)
・ Silk + Steel
・ Silk 106.9
・ Silk 700S


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Silk : ウィキペディア英語版
Silk

Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.〔(【引用サイトリンク】title=Silk )〕 The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm ''Bombyx mori'' reared in captivity (sericulture). The shimmering appearance of silk is due to the triangular prism-like structure of the silk fibre, which allows silk cloth to refract incoming light at different angles, thus producing different colors.
Silk is produced by several insects, but generally only the silk of moth caterpillars has been used for textile manufacturing. There has been some research into other types of silk, which differ at the molecular level. Silk is mainly produced by the larvae of insects undergoing complete metamorphosis, but some adult insects such as webspinners also produce silk, and some insects such as raspy crickets produce silk throughout their lives. Silk production also occurs in Hymenoptera (bees, wasps, and ants), silverfish, mayflies, thrips, leafhoppers, beetles, lacewings, fleas, flies, and midges.〔 Other types of arthropod produce silk, most notably various arachnids such as spiders (see spider silk).
==Etymology==
The word silk comes from Old English ''sioloc'', from Greek σηρικός ''serikos'', "silken", ultimately from an Asian source (cf. Chinese ''si'' "silk", Manchurian ''sirghe'', Mongolian ''sirkek'').〔(【引用サイトリンク】title=Silk )

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Silk」の詳細全文を読む



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