Editing Archimedes' screw (section)

===Earliest records===
The [[screw pump]] is the oldest [[Pump#Positive-displacement pumps|positive displacement pump]].<ref name="Stewart">{{cite book   | last = Stewart| first = Bobby Alton|author2=Terry A. Howell| title = Encyclopedia of water science| publisher = CRC Press| year = 2003| location = USA| page = 759| url = https://books.google.com/books?id=5cP-81xDWuwC&pg=PA759| isbn = 0-8247-0948-9}}</ref> The first records of a water screw, or screw pump, date back to [[Hellenistic Egypt]] before the 3rd century BC.<ref name="Stewart"/><ref name="Britannica">{{cite encyclopedia| title = Screw| encyclopedia = Encyclopædia Britannica online| publisher = The Encyclopaedia Britannica Co.| year = 2011| url = https://www.britannica.com/EBchecked/topic/529876/screw| access-date = 2011-03-24}}</ref> The Egyptian screw, used to lift water from the [[Nile]], was composed of tubes wound round a cylinder; as the entire unit rotates, water is lifted within the spiral tube to the higher elevation. A later screw pump design from Egypt had a spiral groove cut on the outside of a solid wooden cylinder and then the cylinder was covered by boards or sheets of metal closely covering the surfaces between the grooves.<ref name="Stewart"/>
[[File:Archimedes' hydraulic endless screw.jpg|thumb|A modern mini reconstruction of Archimedes' screw at the [[Museum of Ancient Greek Technology|Kotsanas Museum of Ancient Greek Technology]], in [[Athens]].]]
Some researchers have proposed this device was used to irrigate the [[Hanging Gardens of Babylon]], one of the [[Seven Wonders of the Ancient World]]. A cuneiform inscription of [[Assyria]]n King [[Sennacherib]] (704–681 BC) has been interpreted by [[Stephanie Dalley]]<ref>Stephanie Dalley, ''The Mystery of the Hanging Garden of Babylon: an elusive World Wonder traced'', (2013), OUP {{ISBN|978-0-19-966226-5}}</ref> to describe casting water screws in bronze some 350 years earlier. This is consistent with Greek historian [[Strabo]], who describes the [[Hanging Gardens of Babylon|Hanging Gardens]] as irrigated by screws.<ref name=DO>{{cite journal|last1=Dalley|first1=Stephanie|last2=Oleson|first2=John Peter|date=2003|title= Sennacherib, Archimedes, and the Water Screw: The Context of Invention in the Ancient World|pages=1–26|journal=[[Technology and Culture]]|volume=44|issue=1|url=https://muse.jhu.edu/article/40151/|doi=10.1353/tech.2003.0011|s2cid=110119248}}</ref>