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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.
Johnson invented the Super Soaker water gun, which was the top-selling toy in the United States from 1991 to 1992. In 1980 Johnson formed his own law firm and licensed the Super Soaker water gun to Larami Corporation. Two years later, the Super Soaker generated over $200 million in retail sales and became the best selling toy in North America.
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]
Kraft was an amateur jewelry maker and would find unpolished jade on the road, which he would shape, polish, and set into rings. The rings were then given as awards to outstanding employees, and they often became family heirlooms. [11] Kraft even wrote a book on jewelry called Adventure in Jade and owned jade mines in Alaska and California. [12]
Jethro Wood was born on March 16, 1774 in Dartmouth, Massachusetts. [3] His parents were John Wood and Dinah Hussey. [1] His family was Quaker, both of his parents being a part of the Society of Friends, and Wood remained Quaker throughout his life, but was not particularly doctrinaire. [4]
An 1839 daguerreotype of Central High School in Philadelphia, Pennsylvania, taken by Joseph Saxton.. After almost a decade abroad, Saxton returned to Philadelphia in 1837 and accepted a position at the Philadelphia Mint, first as superintended the making of machinery and then as curator of weights and measures, accurate sets of which were furnished to national and State governments.
In the United States, experiments were made with rings made from bone, rope or wood. [3] A young British Scouter, Bill Shankley, who was responsible for running a workshop and developing ideas for camping equipment at Gilwell Park, became aware of the American rings, and set out to create something similar. The result was the Gilwell Woggle.