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The sphere is a fundamental object in many fields of mathematics. Spheres and nearly-spherical shapes also appear in nature and industry. Bubbles such as soap bubbles take a spherical shape in equilibrium. The Earth is often approximated as a sphere in geography, and the celestial sphere is an important concept in astronomy.
Spherical objects (1 C, 7 P) Spherical trigonometry (1 C, 15 P) ... Sphere packing in a sphere; Spherical Earth; Spherical polyhedron; Spherical wave transformation;
Category: Spherical objects. 4 languages. ... Sphere (venue) This page was last edited on 7 January 2024, at 16:04 (UTC). Text is available under the Creative ...
Tessellations of euclidean and hyperbolic space may also be considered regular polytopes. Note that an 'n'-dimensional polytope actually tessellates a space of one dimension less. For example, the (three-dimensional) platonic solids tessellate the 'two'-dimensional 'surface' of the sphere.
In geometry, a spherical polyhedron or spherical tiling is a tiling of the sphere in which the surface is divided or partitioned by great arcs into bounded regions called spherical polygons. A polyhedron whose vertices are equidistant from its center can be conveniently studied by projecting its edges onto the sphere to obtain a corresponding ...
The prolate spheroid is the approximate shape of the ball in several sports, such as in the rugby ball. Several moons of the Solar System approximate prolate spheroids in shape, though they are actually triaxial ellipsoids. Examples are Saturn's satellites Mimas, Enceladus, and Tethys and Uranus' satellite Miranda.
% of sphere Location Completed Removed Held record m ft Sphere: 157 515 71% Las Vegas, Nevada: 29 September 2023 – 29 September 2023 - current Avicii Arena (Globen) 110.40 362.2 77.2 % Stockholm, Sweden 19 February 1989 – 19 February 1989 – 29 September 2023 Kazakhstan Pavilion and Science Museum (Nur Alem) 80 262 ~100 % Astana, Kazakhstan
The sum of the angles of a spherical triangle is not equal to 180°. A sphere is a curved surface, but locally the laws of the flat (planar) Euclidean geometry are good approximations. In a small triangle on the face of the earth, the sum of the angles is only slightly more than 180 degrees. A sphere with a spherical triangle on it.