BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
How many days can you artificially prolong pregnancy after the death of the mother's brain? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? How many days can you artificially prolong pregnancy after the death of the mother's brain? In the history of medicine, there are many cases when, after the death of the brain of a pregnant woman as a result of an illness or an accident, life was artificially maintained in her body, thereby ensuring the normal development and birth of a baby. The record period for such an extension of pregnancy is 107 days, and the shortest gestation period after which the life of a brain-dead mother was artificially supported with a successful result for the child is 15 weeks. Authors: Jimmy Wales, Larry Sanger Random interesting fact from the Great Encyclopedia: What is a mold and casting mold? Many of the things we use in everyday life are made with molds and molds. A mold is a device for extruding shaped parts of a certain shape from sheet metal or plastic. If you have ever watched how cookies in the form of stars and hearts are cut out of rolled out dough, then you have an elementary idea of \uXNUMXb\uXNUMXbhow this device works. A casting mold is a device for casting figured parts made of metal, plastic, and the like. These substances in a liquid state are poured into a hollow mold (mould) and remain there until they solidify. A jelly mold is the simplest example of a mold. Molds are used in industry to make parts that are difficult to make with other methods. For example, parts of a passenger car, such as a bumper and a hood. Casting molds are also used in industry to make parts such as refrigerator handles, radio housings, and car grilles. The production of such parts by conventional methods (cutting, sawing, drilling, and so on) will take too much time and will consume too much material. With the help of molds and casting molds, they can be made as easily and quickly as cookies. In addition to the manufacture of complex profiles, the mold is used when it is necessary to make a large number of identical parts. The advantage of this method is also that the details in this case do not need special refinement. Complex castings sometimes need to be sanded and polished to eliminate roughness and roughness. And sharp corners are filed on stamping. Forms usually consist of two parts. When connected together, they form the desired profile. Casting makes only the outer part of the part. Stamping can be done both external and internal parts. Did you know that molds were being used as early as 650 BC. e. and that Greek blacksmiths used them to make silver coins? A piece of silver was placed in a template cut from a harder metal and flattened with hammer blows, and at the same time the pattern from the template was transferred to it.
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