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Hollow-Face illusion. The Hollow-Face illusion (also known as Hollow-Mask illusion) is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face. While a convex face will appear to look in a single direction, and the gaze of a flat face, such as the Lord Kitchener Wants You poster, can appear to ...
A breathing mask is a facepiece that covers the mouth and nose, and optionally other parts of the face or head, to constrain and direct the flow of breathing gas as part of a breathing apparatus.
In medicine, a nasopharyngeal airway, also known as an NPA, nasal trumpet (because of its flared end), or nose hose, is a type of airway adjunct, a tube that is designed to be inserted through the nasal passage down into the posterior pharynx to secure an open airway.
Hahoetal ( Korean : 하회탈) are traditional Korean masks worn in the Hahoe byeolsingut talnori ceremonies that date back to the 12th century. [1] They represent the stock characters needed to perform the roles in the ritual dance dramas included in the ceremony.
A domino mask is a small and (often) rounded mask covering only the area around the eyes and the space between them. The mask has seen special prevalence since the 18th century, when it became traditional wear in particular local manifestations of Carnival, particularly with Venetian Carnival, as part of a domino costume, which included the ...
Mask (song) " Mask " is the second single by American YouTuber Dream. It was released on May 21, 2021, through Dream Music. "Mask" is more rock -influenced than Dream's previous song, "Roadtrip", and lyrically details his past and present struggles with attention deficit hyperactivity disorder (ADHD). "Mask" performed well commercially ...
A full face mask over the mouth and nose is another approach for people who breathe out of their mouths when they sleep. [13] Often, oral masks and naso-oral masks are used when nasal congestion or obstruction is an issue. [medical citation needed] There are also devices that combine nasal pressure with mandibular advancement devices (MAD).
A breathing mask is a mask that covers the mouth, nose, and optionally other parts of the face or head, designed to constrain and direct the wearer's breath to and/or from a particular breathing apparatus.