Engineering:Waterskin
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A waterskin is a receptacle used to hold water. Normally made of a sheep or goat skin, it retains water naturally and therefore was very useful in desert crossings until the invention of the canteen, though waterskins are still used in some parts of the world. Though it may have been used over 5000 years ago by tribal peoples, the first pictures of it are from ancient Assyrians, who used the bladders as floats in 3000[citation needed] BCE. It also was used by large ancient empires such as Rome before the advent of the canteen.
Modern waterskins are often made of various plastic- or rubber-impregnated canvases, or sometimes simply thicker transparent plastics, and are often called water-pouches, water bags, or water bladders. Such modern waterskins offer many features, such as detachable straw-hoses, valves, refill openings of various widths, various closures and handles, styles of covering or cases, and removable cases or carry pouches.
Historical accounts
The use of waterskins, or skin-bottles, to transport water is documented in a wide range of historical sources. In the 2nd century CE, the Mishnah (compiled in Judea in 189 CE) mentions their common use among the inhabitants of the land.[1] These skins, after being flayed from the carcase, dressed and prepared to contain liquid, could hold as little as 7 kabs (the equivalent of 168 eggs in volume, or about 2.6 US liquid gallons),[2] or far more.
Goat skin bottles used to transport water were typically found all throughout the Near East, including the Arabian Peninsula, where, in Yemen, it was common in the 18th century to see a slave carrying a waterskin on his back, or else 3 or 4 waterskins carried by donkey or by camel from the water source.[3] Most waterskins could hold between 4 and 6 gallons of water.[3]
Uses
In some societies, waterskins were used to churn milk into butter, by suspending the skin bottle with ropes between a tripod and two persons moving violently the waterskin back and forth between them. The Tosefta speaks of oil and wine also being stored in skin bottles.[4]
The Bedouins of the Negev would occasionally store clarified butter (samen) and olive-oil in special skins called عُكة (ʿukkah).[5] Their volume would be between 15 and 25 litres.
Preparation
In the Negev, goat-skins were used in making waterskins (القربة = al-girbah), and for making churning bags (السعن = al-siʿin).[6] After flaying the carcass and removing the hairs, the skins were prepared by submerging the goat-skin in a boiled, bath solution containing the bark of either Acacia raddiana or Pistacia atlantica, or else the root of sumac (Rhus tripartita), or the rinds of pomegranates (Punica granatum), and left in that state of immersion for 1 to 3 days.[6]
See also
- Bota bag
- Goatskin (material)
- Colambre
- Wineskin
- Mashk
- CamelBak
References
- ↑ Danby, H., ed. (1977), The Mishnah, Oxford: Oxford University Press, p. 525 (Hullin 9:3), ISBN 0-19-815402-X, s.v. חמת (= "water-skin")
- ↑ Danby, H., ed. (1977), The Mishnah, Oxford: Oxford University Press, p. 635 (Kelim 20:1), ISBN 0-19-815402-X, s.v. חמת (= "goatskin")
- ↑ 3.0 3.1 Fergusson, William (2021). Derek L. Elliott. ed (in en). The voyages and manifesto of William Fergusson, a surgeon of the East India Company 1731-1739. Abingdon, Oxon: Routledge for the Hakluyt Society. p. 79. ISBN 9780367713911. OCLC 1224044668.
- ↑ Tosephta (1970). M.S. Zuckermandel. ed (in he). Tosephta - Based on the Erfut and Vienna Codices. Jerusalem: Wahrmann Books. p. 586 (Kelim Baba Metzia 7:3). OCLC 13717538.
- ↑ Abu-Rabiʻa, ʻAref (2001) (in en). Bedouin Century: Education and Development among the Negev Tribes in the Twentieth Century. New York. p. 45. OCLC 47119256. https://www.berghahnbooks.com/title/AbuRabiaBedouin.
- ↑ 6.0 6.1 Bailey, Clinton; Danin, Avinoam (1981). "Bedouin Plant Utilization in Sinai and the Negev". Economic Botany (Springer on behalf of New York Botanical Garden Press) 35 (2): 157. doi:10.1007/BF02858682.
External links
- How to make a goat skin bottle, It took 2 Months to make this video, Let's see what happen to Goat skin !! on YouTube, Doora / April 23 (Part 1)
- How to make a goat skin bottle, Unbelievable, Look what happened to Goat skin! on YouTube Doora / April 23 (Part 2)
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