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Crumple zones, crush zones, [1] or crash zones are a structural safety feature used in vehicles, mainly in automobiles, to increase the time over which a change in velocity (and consequently momentum) occurs from the impact during a collision by a controlled deformation; in recent years, it is also incorporated into trains and railcars.
Though emissions and safety requirements had been first introduced ... prioritizing occupant crumple zone ... 18.3% of U.S. sales were imported cars. [53] American ...
The crumple zone concept was originally invented and patented by Barényi in 1937, before he worked for Mercedes-Benz; and subsequently in a more developed form in 1952. [19] The 1953 Mercedes-Benz "Ponton" was a partial implementation of his ideas, [ 20 ] by having a strong deep platform to form a partial safety cell, patented in 1941.
Crumple zones were also created. While it typically yielded positive results, it also had drawbacks. While it typically yielded positive results, it also had drawbacks. The debris field created new hazards for cars approaching the crash scene, and if cars hit pieces of the debris, it could be propelled into the spectator areas.
2 The need for crumple zones. 3 comments. 3 Incorrect picture. 1 comment. 4 Smart (automobile) 1 comment. 5 Someone don't like crumple zones. 3 comments.
1526: Lucas Vázquez de Ayllón briefly establishes the failed settlement of San Miguel de Gualdape in South Carolina, the first site of enslavement of Africans in North America and of the first slave rebellion. 1527: Fishermen are using the harbor at St. John's, Newfoundland and other places on the coast.
Examples of Clovis and other Paleoindian point forms, markers of archaeological cultures in North America. The Solutrean hypothesis on the peopling of the Americas is the claim that the earliest human migration to the Americas began from Europe during the Solutrean Period , with Europeans traveling along pack ice in the Atlantic Ocean .
The rake was made from wood or an antler. Some Indian women preferred the bone hoe even after the iron hoe was introduced by European traders and settlers. [18] Sunflowers were the earliest crop planted in spring. Sunflowers were planted in clumps around the edges of fields. Maize was next planted.