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The Roblox Studio interface as of August 2024. Roblox Studio is the platforms game engine [26] and game development software. [27] [28] The engine and all games made on Roblox predominantly uses Luau, [29] a dialect of the Lua 5.1 programming language. [30] Since November 2021, the programming language has been open sourced under the MIT License.
The trudgen is a swimming stroke sometimes known as the racing stroke, or the East Indian stroke. It is named after the English swimmer John Trudgen (1852–1902) [1] and evolved out of sidestroke. [2] One swims mostly upon one side, making an overhand movement, lifting the arms alternately out of the water.
In the Drownproofing survival technique, the subject floats in a relaxed, near-vertical posture, with the top of the head just above the surface. Using the arms or legs to exert a downward pressure, the subject raises himself sufficiently so that the mouth is above the surface and a breath is taken, before dropping back into the relaxed float.
In ordinary swimming on the right side, the left arm moves gently in the water, almost at rest. [3] Then, when the used arm becomes tired, the swimmer turns on the other side, and the left arm works while the right arm rests. [3] The legs move in opposite directions with legs bent, and straighten as they come together.
To an untrained observer, it may not be obvious that a drowning person is in distress. The victim may appear to be swimming safely, but the victim is actually within 20–60 seconds of sinking under the surface and thus dying. [3] They extend their arms laterally and press down on the water's surface in order to lift their mouth out of the water.
Backstroke swimming (amateur competition, non-optimal style) In backstroke, the arms contribute most of the forward movement. The arm stroke consists of two main parts: the power phase (consisting of three separate parts) and the recovery. [3] The arms alternate so that one arm is always underwater while the other arm is recovering.
Birds that rely on lift based propulsion for swimming have been observed to utilize higher wing beat frequencies when flying than when submerged and swimming. [16] This observation follows directly from the logic that the increased density of water produces greater thrust for similar wing excursions, so for a given speed fewer wing beats are ...
In 2004 Zheng took up the sport of Swimming and in 2010 he made his international swimming debut when Zheng represented China at the World Championships in Eindhoven, Netherlands. [ 1 ] Zheng competed in his first Paralympic Games at the 2012 London Paralympics , where he won the gold medal in a close race in the 100m backstroke S6 final.