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Around 1450, German goldsmith Johannes Gutenberg invented the metal movable-type printing press, along with innovations in casting the type based on a matrix and hand mould. The small number of alphabetic characters needed for European languages was an important factor. [ 8 ]
Originally produced in 1890 in marble, bronze casts of Danaid began to be produced in 1891 and are in collections in France as well as the Museo Soumaya in Mexico City. [1]A more modern casting can be found in the permanent collection of the Peoria Riverfront Museum, in Peoria, Illinois, US, a gift of preeminent Rodin collector B. Gerald Cantor in honor of Carlotta and Gary Bielfeldt in 1987.
Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to ...
Molten metal before casting Casting iron in a sand mold. In metalworking and jewelry making, casting is a process in which a liquid metal is delivered into a mold (usually by a crucible) that contains a negative impression (i.e., a three-dimensional negative image) of the intended shape.
Water and weight driven mechanical clocks, by Spanish Muslim engineers sometime between 900–1200 AD. According to historian Will Durant, a watch like device was invented by Ibn Firnas. Magnetic wormhole - first ever manmade wormhole created at the Universitat Autonoma de Barcelona by Spanish physicist Jordi Prat-Camps. The magnetic wormhole ...
Recently a machine translation of the Spanish article (which *looks* to be quite comprehensive) was attempted by the Spanish article's primary author User:Saeta (a.k.a es:Usuario:Lobillo) who clearly wants to expand the article and would surely be a great resource. Also, writing/translating the article should be both interesting and, well, fun.--
Library calls on witches to help translate 17th century spellbook. Aris Folley. Updated October 15, 2020 at 11:52 PM.
In the casting process, a pattern is made in the shape of the desired part. Simple designs can be made in a single piece or solid pattern. More complex designs are made in two parts, called split patterns. A split pattern has a top or upper section, called a cope, and a bottom or lower section called a drag.