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Orthopedic casts or just casts are a form of medical treatment used to immobilize and support bones and soft tissues during the healing process after fractures, surgeries, or severe injuries. By restricting movement, casts provide stability to the affected area, enabling proper alignment and healing of bones, ligaments, and tendons.
Plaster cast bust of George Washington by Jean-Antoine Houdon based on a life mask cast in 1786.. A plaster cast is a copy made in plaster of another 3-dimensional form. The original from which the cast is taken may be a sculpture, building, a face, a pregnant belly, a fossil or other remains such as fresh or fossilised footprints – particularly in palaeontology (a track of dinosaur ...
The tram tracks were polished by the passing of trams and by following the advancing reflection, it was possible to maintain the correct position in the road. [ 1 ] In 1934, he patented his invention (patents Nos. 436,290 and 457,536), based on the 1927 retroreflecting lens patent of Richard Hollins Murray.
A cast saw is an oscillating saw used to remove orthopedic casts. Instead of a rotating blade, cast saws use a sharp, small-toothed blade rapidly oscillating or vibrating back and forth over a minimal angle to cut material and are therefore not circular saws . [ 1 ]
Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods. Heavy equipment like machine tool beds, ships' propellers, etc. can be cast easily in the required size, rather than fabricating by joining several small pieces. [1] Casting is a 7,000-year-old process.
The earliest pipes were made of clay, and are found at the Temple of Bel at Nippur in Babylonia. [126] [b] 4000 BC: Oldest evidence of locks, the earliest example discovered in the ruins of Nineveh, the capital of ancient Assyria. [129] 4000 BC – 3400 BC: Oldest evidence of wheels, found in the countries of Ukraine, Poland, and Germany. [130 ...
Still life with plaster casts, made by Daguerre in 1837, the earliest reliably dated daguerreotype [note 2] To exploit the invention, 400 shares would be on offer for 1,000 francs each; secrecy would be lifted after 100 shares had been sold, or the rights of the process could be bought for 20,000 francs.
Plankalkül (year of conceptualization) Konrad Zuse: none (unique language) 1943–46 ENIAC coding system : John von Neumann, John Mauchly, J. Presper Eckert and Herman Goldstine after Alan Turing. The first programmers of ENIAC were Kay McNulty, Betty Jennings, Betty Snyder, Marlyn Meltzer, Fran Bilas, and Ruth Lichterman. none (unique ...