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Mardi Gras papier-mâché masks, Haiti. Papier-mâché (UK: / ˌ p æ p i eɪ ˈ m æ ʃ eɪ / PAP-ee-ay MASH-ay, US: / ˌ p eɪ p ər m ə ˈ ʃ eɪ / PAY-pər mə-SHAY, French: [papje mɑʃe] - the French term "mâché" here means "crushed and ground" [1]) is a versatile craft technique with roots in ancient China, in which waste paper is shredded and mixed with water and a binder to produce ...
A Morin surface seen from "above" Sphere eversion process as described in [1] Paper sphere eversion and Morin surface Paper Morin surface (sphere eversion halfway) with hexagonal symmetry In differential topology , sphere eversion is a theoretical process of turning a sphere inside out in a three-dimensional space (the word eversion means ...
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a celestial globe.
Today almost all paper is made using industrial machinery, while handmade paper survives as a specialized craft and a medium for artistic expression. In papermaking, a dilute suspension consisting mostly of separate cellulose fibres in water is drained through a sieve-like screen, so that a mat of randomly interwoven fibres is laid down.
A puzzle ball on display at the Overseas Museum, Bremen. A Chinese puzzle ball, sometimes known as a devil's work ball (Chinese: 鬼工球; pinyin: guǐ gōng qiú) or the Concentric Ball (Chinese: 同心球; pinyin: tóng xīn qiú), is a Chinese-made artifact that consists of a number of intricately carved concentric hollow spheres carved from a single solid block that fit within one another ...
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The Las Vegas Sphere is a new venue that features the world’s largest LED screen meant to host live events, such as film screenings, concerts, and sports games.. The circular theatre is 366-feet ...
Then, rotating the surface 90° around its axis of symmetry will exchange its colors, i.e. will exchange the inner-outer polarity of the orientable surface, so that retracing the steps of the homotopy at exactly the same position back to the original sphere after having so rotated the Morin surface will yield a sphere whose outer surface is red ...