0_Wizard
Swimming is the self-proplsion of a person through a body of water. Do you know how to swim?
Swimming is the self-propulsion of a person through fresh or salt water, usually for recreation, sport, exercise, or survival.
chosen_Swimming_0
Swimming
chosen_topic_0_Swimming
Swimming lessons
Swimming lessons is the process of learning to swim. In most countries there is a definition of a number of swimming levels that is reached in the process of the curriculum. The respective certificates of swimming tests are required for further training in aquatic abilities. Many countries have defined a minimum swimming level that children should reach by the end of primary education, in most cases with the help of school swimming classes being part of the normal curriculum. Children are often given swimming lessons, which serve to develop swimming technique and confidence. Children were traditionally viewed not to be able to swim independently until 4 years of age, but infant swimming lessons are now recommended to prevent drowning.
Swimming
Swimming is the self-propulsion of a person through fresh or salt water, usually for recreation, sport, exercise, or survival. Locomotion is achieved through coordinated movement of the limbs, the body, or both. Humans can hold their breath underwater and undertake rudimentary locomotive swimming within weeks of birth, as an evolutionary response. Swimming is consistently among top public recreational activities, and in some countries, swimming lessons are a compulsory part of the educational curriculum. As a formalized sport, swimming features in a range of local, national, and international competitions, including every modern summer Olympics.
Aquatic locomotion
Aquatic locomotion is biologically propelled motion through a liquid medium. The simplest propulsive systems are composed of cilia and flagella. Swimming has evolved a number of times in a range of organisms including arthropods, fish, molluscs, reptiles, birds, and mammals. Swimming evolved a number of times in unrelated lineages. Supposed jellyfish fossils occur in the Ediacaran, but the first free-swimming animals appear in the Early to Middle Cambrian. These are mostly related to the arthropods, and include the Anomalocaridids, which swam by means of lateral lobes in a fashion reminiscent of today's cuttlefish.
Diana Nyad
Diana Nyad (née Sneed; born August 22, 1949) is an American author, journalist, motivational speaker, and long-distance swimmer. Nyad gained national attention in 1975 when she swam around Manhattan () and in 1979 when she swam from North Bimini, The Bahamas, to Juno Beach, Florida (). In 2013, on her fifth attempt and at age 64, she became the first person confirmed to swim from Cuba to Florida without the aid of a shark cage, swimming from Havana to Key West (). Nyad was also once ranked thirteenth among US women squash players. Nyad was born in New York City on August 22, 1949, to stockbroker William L. Sneed Jr. and his wife Lucy Winslow Curtis (1925–2007).
Lewis Pugh
Lewis William Gordon Pugh, OIG (born 5 December 1969) is a British-South African endurance swimmer and ocean advocate. He has been described as the "Sir Edmund Hillary of swimming." He was the first person to complete a long-distance swim in every ocean of the world, and he frequently swims in vulnerable ecosystems to draw attention to their plight. Pugh is best known for undertaking the first swim across the North Pole in 2007 to highlight the melting of the Arctic sea ice. In 2010 he swam across a glacial lake on Mount Everest to draw attention to the melting of the glaciers in the Himalayas, and the impact the reduced water supply will have on peace in the region.
History of swimming
Competitive swimming in Britain started around 1830, mostly using breaststroke. Swimming was part of the first modern Olympic games in 1896 in Athens. In 1908, the world swimming association, Fédération Internationale de Natation (FINA), was formed. 10,000-year-old rock paintings of people swimming were found in the Cave of Swimmers near Wadi Sura in southwestern Egypt. These pictures seem to show breaststroke or doggy paddle, although it is also possible that the movements have a ritual meaning unrelated to swimming. An Egyptian clay seal dated between 9000 BC and 4000 BC shows four people who are believed to be swimming a variant of the front crawl.
Tradeoffs for locomotion in air and water
Certain species of fish and birds are able to locomote in both air and water, two fluid media with very different properties. A fluid is a particular phase of matter that deforms under shear stresses and includes any type of liquid or gas. Because fluids are easily deformable and move in response to applied forces, efficiently locomoting in a fluid medium presents unique challenges. Specific morphological characteristics are therefore required in animal species that primarily depend on fluidic locomotion. Because the properties of air and water are so different, swimming and flying have very disparate morphological requirements.
1_Apprentice
Yeah i love swimming specially in the ocean beafore the sunset