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A noseclip or nose clip is a device designed to hold the nostrils closed to prevent water from entering, or air from escaping, by people during aquatic activities such as kayaking, freediving, [1] recreational swimming, synchronized swimming and waterdance. A nose clip is generally made of plastic or of wire covered in rubber or plastic. Nose ...
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English: Render from SolidWorks CAD program of a bi-conic-shaped rocket nose cone with a total length of 18 inches, a primary radius of 4 inches, a secondary (tip) section length of 6 inches, and a secondary radius of 2 inches.
The snorkel may have a loop or a clip to attach it to the head strap of the diving mask or swimming goggles, or may be tucked between the mask-strap and the head. [2] Some snorkels are fitted with a float valve at the top to prevent flooding if the top opening is immersed, and some are fitted with a water trap and purge valve, intended for ...
Some spacesuits contain a device called the Valsalva device to enable the wearer to block their nose to perform the Valsalva maneuver when wearing the suit. Astronaut Drew Feustel describes it as "a spongy device called a Valsalva that is typically used to block the nose in case a pressure readjustment is needed". [ 29 ]
A traditional silhouette portrait of the late 18th century. A silhouette (English: / ˌ s ɪ l u ˈ ɛ t /, [1] French:) is the image of a person, animal, object or scene represented as a solid shape of a single colour, usually black, with its edges matching the outline of the subject.
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Underwater swimming on the back has the additional problem of water entering the nose. To avoid this, the swimmer can breathe out through the nose or wear a nose clip. Some swimmers can close their nostrils with the upper lip or with the compressor naris muscles.