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Parachuting and skydiving are methods of descending from a high point in an atmosphere to the ground or ocean surface with the aid of gravity, involving the control of speed during the descent using a parachute or multiple parachutes. For human skydiving, there is often a phase of free fall (the skydiving segment), where the parachute has not yet been deployed and the body gradually accelerates to terminal velocity. In cargo parachuting, the parachute descent may begin immediately, such as a parachute-airdrop in the Troposphere, lower atmosphere of Earth, or it may be significantly delayed. For example, in a planetary atmosphere, where an object is descending "under parachute" following atmospheric entry from outer space, space, may occur only after the hypersonic entry phase and initial deceleration that occurs due to aerodynamic drag, friction with the thin upper atmosphere. History The first parachute jump in history was made on 22 October 1797 by Frenchman André-Jacq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaud
Vaud ( ; , ), more formally Canton of Vaud, is one of the Cantons of Switzerland, 26 cantons forming the Switzerland, Swiss Confederation. It is composed of Subdivisions of the canton of Vaud, ten districts; its capital city is Lausanne. Its coat of arms bears the motto "Liberté et patrie" on a white-green bicolour. Vaud is the third-largest Swiss canton by population and fourth by size. It is located in Romandy, the partially French-speaking western part of the country, and borders the canton of canton of Neuchâtel, Neuchâtel to the north, the cantons of Canton of Fribourg, Fribourg and Canton of Bern, Bern to the east, the canton of Valais to the south, the canton of canton of Geneva, Geneva to the south-west, and France to the west. The geography of the canton includes all three natural regions of Switzerland: the Jura Mountains, the Swiss Plateau, and the Swiss Alps, (Swiss) Alps. It also includes some of the largest lakes of the country: Lake Geneva and Lake Neuchâtel. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
