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Shadoof or shaduf comes from the Arabic word شادوف, šādūf. It is also called a lift, [5] well pole, well sweep, or simply a sweep in the US. [12] A less common English translation is swape. [13] Picotah (or picota) is a Portuguese loan word. It is also called a jiégāo (桔槹) in Chinese.
The first known crane machine was the shaduf, a water-lifting device that was invented in ancient Mesopotamia (modern Iraq) and then appeared in ancient Egyptian technology. Construction cranes later appeared in ancient Greece, where they were powered by men or animals (such as donkeys), and used for the construction of buildings.
The introduction of this machine had a decisive influence on agriculture as this wheel lifted water 3 to 8 metres with much less labour force and time than the Shaduf, which was the previous irrigation device in the Kingdom. The Shaduf relied on human energy while the saqiya was driven by buffalos or other animals. [20]
This list of African-American inventors and scientists documents many of the African Americans who have invented a multitude of items or made discoveries in the course of their lives. These have ranged from practical everyday devices to applications and scientific discoveries in diverse fields, including physics, biology, math, and medicine.
Ermal Cleon "Ernie" Fraze [1] (September 16, 1913 – October 26, 1989) was an American engineer who invented the pull-tab opener used in beverage cans. [1] Early life
The Rings of Power are magical artefacts in J. R. R. Tolkien's legendarium, most prominently in his high fantasy novel The Lord of the Rings.The One Ring first appeared as a plot device, a magic ring in Tolkien's children's fantasy novel, The Hobbit; Tolkien later gave it a backstory and much greater power.
Hazz al-quhuf is composed in the style of a literary commentary on a 42-line poem purported to be written by a peasant (Arabic: فلاح, fallāḥ) named Abu Shaduf. [1] In his commentary, al-Shirbini describes different customs of peasants and urban dwellers, and notes regional distinctions between the Sa'idi people of Upper Egypt, people of the Nile Delta in Lower Egypt, and the poorest ...
A ram-headed bird representing the ba of Ra with shen rings in its grasp. (Louvre Museum) In ancient Egypt, a shen ring was a circle with a line tangent to it, represented in hieroglyphs as a stylised loop of a rope. The word shen itself means "encircling" in ancient Egyptian, while the shen ring itself represents eternal protection.