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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. Screw pump — The screw pump is the oldest positive displacement pump. [181]
Pumps are subject and will be subject to EU ecodesign regulations [3] As from 1 January 2013, the circulator Regulation will come into force. [4] Europump organised a conference on Ecodesign on 6 October 2011 to discuss with stakeholders (including the European Commission) about ecodesign and pumps.
The screw pump is the oldest positive displacement pump. [1] The first records of a water screw, or screw pump, date back to Hellenistic Egypt before the 3rd century BC. [1] [3] 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.
Irrigation Pump in Egypt, 1950s. The screw pump is the oldest positive displacement pump. [1] The first records of a water screw, or screw pump, dates back to Ancient Egypt before the 3rd century BC.
Location of Egypt. Egypt is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia by a land bridge formed by the Sinai Peninsula.Egypt's economy depends mainly on agriculture, media, petroleum imports, natural gas, and tourism; there are also more than three million Egyptians working abroad, mainly in Saudi Arabia, the Persian Gulf and Europe.
On April 11th, 2023, Egypt announced a contract with EGIT Consulting to study the feasibility of the project. [ 16 ] As of 2024, Saudi Arabia and UAE are exploring projects to mine lithium for electric vehicles from existing onshore salt pans as well as salt pans supplemented with Persian Gulf sea water.
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Ctesibius or Ktesibios or Tesibius (Ancient Greek: Κτησίβιος; fl. 285–222 BCE) was a Greek inventor and mathematician in Alexandria, Ptolemaic Egypt. [1] Very little is known of Ctesibius' life, but his inventions were well known in his lifetime. [2] He was likely the first head of the Museum of Alexandria.