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Há 8 horas · The bicycle's invention has had an enormous effect on society, both in terms of culture and of advancing modern industrial methods. Several components that played a key role in the development of the automobile were initially invented for use in the bicycle, including ball bearings , pneumatic tires , chain-driven sprockets , and tension-spoked wheels .
Há 8 horas · Les Notes d’information technique (NIT) les plus téléchargées depuis le début de l’année se rapportent aux métiers de l’enveloppe, et plus particulièrement à la toiture plate et à l’étanchéité à l’eau et à l’air du bâtiment. Vers toutes les NIT. Ambitions 2025 - Green Deal - Performances énergétiques.
Há 8 horas · Life Before Dianetics Main article: Life of L. Ron Hubbard from 1911 to 1950 See also: Scientology and psychiatry § Hubbard's early encounters with psychiatry Lafayette Ronald Hubbard was born on March 13, 1911, the only child of Ledora May Waterbury (1885–1959), who had trained as a teacher, and Harry Ross Hubbard (1886–1975), a low-ranking United States Navy officer. Like many military ...