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Set of points equidistant from a center
A sphere (from Ancient Greek σφαῖρα (sphaîra) 'ball') is a surface analogous to the circle, a curve. In solid geometry, a sphere is the set of points that
Sphere
Sculpture in New York City
The Sphere (officially Große Kugelkaryatide N.Y., also known as Sphere at Plaza Fountain, WTC Sphere or Koenig Sphere) is a monumental cast bronze sculpture
The_Sphere
Sculpture by Arnaldo Pomodoro, of which several versions exist
Sphere Within Sphere (Sfera con sfera) describes a series of spherical bronze sculptures by Italian sculptor Arnaldo Pomodoro. In 1966, Pomodoro was commissioned
Sphere_Within_Sphere
Entertainment venue in the Las Vegas Valley, United States
Sphere (also known as Sphere at the Venetian Resort or Las Vegas Sphere) is a music and entertainment arena in Paradise, Nevada, United States, east of
Sphere_(venue)
Spectro-Polarimetric High-contrast Exoplanet REsearch (VLT-SPHERE) is an adaptive optics system and coronagraphic facility at the Very Large Telescope
Spectro-Polarimetric High-Contrast Exoplanet Research
Spectro-Polarimetric_High-Contrast_Exoplanet_Research
Topics referred to by the same term
sphere-like region or shell. Sphere may also refer to: Armillary sphere, a physical model of the celestial sphere Celestial sphere, the astronomical description
Sphere_(disambiguation)
Hypothetical megastructure around a star
A Dyson sphere is a hypothetical megastructure that encompasses a star and captures a large percentage of its power output. The concept is a thought experiment
Dyson_sphere
1987 novel by Michael Crichton
Sphere is a 1987 novel by Michael Crichton, his sixth novel under his own name and his sixteenth overall. It was adapted into the film Sphere in 1998
Sphere_(novel)
American science fiction film by Barry Levinson
Sphere is a 1998 American science fiction psychological thriller film directed and produced by Barry Levinson, adapted by Kurt Wimmer, and starring Dustin
Sphere_(1998_film)
Generalized sphere of dimension n (mathematics)
In mathematics, an n-sphere or hypersphere is an n {\displaystyle n} -dimensional generalization of the 1 {\displaystyle 1} -dimensional circle and
N-sphere
Political concept
In the field of international relations, a sphere of influence (SOI) is a spatial/geographic region, or set of polities or nations, over which a leader
Sphere_of_influence
Conceptual tool in astronomy
In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth. All objects in
Celestial_sphere
Topological operation of turning a sphere inside-out without creasing
In differential topology, sphere eversion is a theoretical process of turning a sphere inside out in a three-dimensional space (the word eversion means
Sphere_eversion
Concept in algebraic topology
groups and the same homology groups as the n-sphere, and so every homotopy sphere is necessarily a homology sphere. The topological generalized Poincaré conjecture
Homotopy_sphere
Model of objects in the sky consisting of a framework of rings
armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting
Armillary_sphere
Three-dimensional packing problem
Sphere packing in a sphere is a three-dimensional packing problem with the objective of packing a given number of equal spheres inside a unit sphere. It
Sphere_packing_in_a_sphere
simplicial (or combinatorial) d-sphere is a simplicial complex homeomorphic to the d-dimensional sphere. Some simplicial spheres arise as the boundaries of
Simplicial_sphere
Mathematical thought experiment posed by Henri Poincaré
experiment about a sphere with strange properties. Poincaré asks us to imagine a sphere of radius R. The temperature of the sphere decreases from its
Sphere-world
Proposed airborne habitats
giant geodesic spheres, which might be made to levitate by slightly heating the air inside above the ambient temperature. Geodesic spheres become stronger
Cloud_Nine_(sphere)
World War II era Pan-Asian union under the Empire of Japan
The Greater East Asia Co-Prosperity Sphere (Japanese: 大東亜共栄圏, Hepburn: Dai Tōa Kyōeiken), also known as the GEACPS, was a pan-Asian union that the Empire
Greater East Asia Co-Prosperity Sphere
Greater_East_Asia_Co-Prosperity_Sphere
2007 video game
Odin Sphere is an action role-playing game developed by Vanillaware for the PlayStation 2. It was published by Atlus (Japan and North America) in 2007
Odin_Sphere
Mathematical object
In mathematics, a hypersphere or 3-sphere is a 4-dimensional analogue of a sphere, and is the 3-dimensional n-sphere. In 4-dimensional Euclidean space
3-sphere
Optical component
An integrating sphere (also known as an Ulbricht sphere) is an optical component consisting of a hollow spherical cavity with its interior covered with
Integrating_sphere
Mathematical theory
In stable homotopy theory, a branch of mathematics, the sphere spectrum S is the monoidal unit in the category of spectra. It is the suspension spectrum
Sphere_spectrum
Metal sphere found in 1974 in Florida, United States
The Betz mystery sphere is a metal sphere with an approximate diameter of 8 inches (20 cm) weighing nearly 22 pounds (10 kg) uncovered in 1974 by a family
Betz_mystery_sphere
Representation of a quantum mechanical system
In quantum mechanics and computing, the Bloch sphere is a geometrical representation of the pure state space of a two-level quantum mechanical system (qubit)
Bloch_sphere
Topological manifold whose homology coincides with that of a sphere
In algebraic topology, a homology sphere is an n-manifold X having the homology groups of an n-sphere, for some integer n ≥ 1 {\displaystyle n\geq 1}
Homology_sphere
Region around a black hole at which light orbits
A photon sphere, or photon ring or photon circle, arises in a neighbourhood of the event horizon of a black hole where gravity is so strong that emitted
Photon_sphere
Index of articles associated with the same name
The term space sphere refers to a space habitat shaped like a sphere. Types include: Bernal sphere Dyson sphere Space cylinder This set index article includes
Space_sphere
Model of the extended complex plane plus a point at infinity
In mathematics, the Riemann sphere, named after Bernhard Riemann, is a model of the extended complex plane (also called the closed complex plane): the
Riemann_sphere
Elements of some cosmological models
The celestial spheres, or celestial orbs, were the fundamental entities of the cosmological models developed by Plato, Eudoxus, Aristotle, Ptolemy, Copernicus
Celestial_spheres
In geocentric cosmological models, a realm between earth and moon
Sphere of fire is the name given in Ptolemaic astronomy to the sphere intervening between, and separating, the Earth and the Moon. Building on Empedocles's
Sphere_of_fire
Smooth manifold that is homeomorphic but not diffeomorphic to a sphere
exotic sphere is a differentiable manifold M that is homeomorphic but not diffeomorphic to the standard Euclidean n-sphere. That is, M is a sphere from
Exotic_sphere
Free-flying robotic system
Synchronized Position Hold Engage and Reorient Experimental Satellite (SPHERES) are a series of miniaturized satellites developed by MIT's Space Systems
SPHERES
Pathological embedding of the sphere in 3D space
The Alexander horned sphere is a pathological embedding of the 2-sphere into 3-dimensional Euclidean space. The topological object was discovered by J
Alexander_horned_sphere
Mathematical theory
mathematics, the theory of finite sphere packing concerns the question of how a finite number of equally-sized spheres can be most efficiently packed. The
Finite_sphere_packing
Mathematical concept
geometry, an affine sphere is a hypersurface for which the affine normals all intersect in a single point The term affine sphere is used because they
Affine_sphere
American holding company in New York City
Sphere Entertainment Co. is an American entertainment holding company based in New York City, and controlled by the family of Charles Dolan. It owns the
Sphere_Entertainment
Geometrical structure
In geometry, a sphere packing is an arrangement of non-overlapping spheres within a containing space. The spheres considered are usually all of identical
Sphere_packing
Topics referred to by the same term
Poincaré sphere may refer to: Poincaré sphere (optics), a graphical tool for visualizing different types of polarized light Bloch sphere, a related tool
Poincaré_sphere
National symbol of Costa Rica
The stone spheres of Costa Rica are an assortment of over 300 petrospheres in Costa Rica, on the Diquís Delta and on Isla del Caño. Locally, they are
Stone_spheres_of_Costa_Rica
Topics referred to by the same term
Three spheres, triple spheres, and related terms may refer to any of the following: Amazon Spheres, a set of conservatories located at Amazon's Seattle
Three_spheres
Sphere opposite the public sphere centred on individuality and personal autonomy
The private sphere is the complement or opposite to the public sphere. The private sphere is a certain sector of societal life in which an individual
Private_sphere
2025 immersive version of The Wizard of Oz
The Wizard of Oz at Sphere is a 2025 American 4D film. It is an "immersive" version of Metro-Goldwyn-Mayer's 1939 musical fantasy film The Wizard of Oz
The_Wizard_of_Oz_at_Sphere
Region in which an astronomical body dominates the attraction of satellites
The Hill sphere is a common model for the calculation of a gravitational sphere of influence. It is the most commonly used model to calculate the spatial
Hill_sphere
Region in the geocentric cosmos below the Moon
In Aristotelian physics and Greek astronomy, the sublunary sphere is the region of the geocentric cosmos below the Moon, consisting of the four classical
Sublunary_sphere
Long-term space habitat proposal
A Bernal sphere is a type of space settlement intended as a long-term home for permanent residents, first proposed in 1929 by John Desmond Bernal. Bernal's
Bernal_sphere
Sphere with radius one, usually centered on the origin of the space
In mathematics, a unit sphere is a sphere of unit radius: the set of points at Euclidean distance 1 from some center point in three-dimensional space.
Unit_sphere
Topics referred to by the same term
MSG Sphere may refer to: Sphere (venue), an indoor entertainment venue in the Las Vegas Valley MSG Sphere London, a proposed venue in London This disambiguation
MSG_Sphere
Structure that resembles a geodesic dome
A Hoberman sphere is a kinetic structure patented by Chuck Hoberman that resembles a geodesic dome, but is capable of folding down to a fraction of its
Hoberman_sphere
Mechanism of electron transfer
Outer sphere refers to an electron transfer (ET) event that occurs between chemical species that remain separate and intact before, during, and after the
Outer sphere electron transfer
Outer_sphere_electron_transfer
Optimization performance test
Sphere function of two variables In mathematical optimization, the sphere function is a convex function used as a performance test problem for optimization
Sphere_function
Television production company
Sphere Media is a Canadian film and television production and distribution company based in Montreal, Quebec. Sphere Media was founded in 1984 by Jean
Sphere_Media
Theory of media objectivity
Hallin's spheres is a theory of news reporting and its rhetorical framing posited by journalism historian Daniel C. Hallin in his 1986 book The Uncensored
Hallin's_spheres
Spherical tank
A Horton sphere (sometimes spelled Hortonsphere), also referred to as a spherical tank or simply sphere, is a spherical pressure vessel, which is used
Horton_sphere
Theorem in Riemannian geometry
In Riemannian geometry, the sphere theorem, also known as the quarter-pinched sphere theorem, strongly restricts the topology of manifolds admitting metrics
Sphere_theorem
Topics referred to by the same term
Look up sphere of influence in Wiktionary, the free dictionary. A sphere of influence is a spatial region over which a state or organization has a level
Sphere of influence (disambiguation)
Sphere_of_influence_(disambiguation)
Areas historically influenced by Chinese culture
Quốc ngữ. The Sinosphere, also known as the Chinese cultural sphere, East Asian cultural sphere, or the Sinic world, encompasses multiple countries in East
Sinosphere
Model particles in statistical mechanics
statistical mechanics, hard spheres are widely used as model particles in fluids and solids. They are defined simply as impenetrable spheres that cannot overlap
Hard_spheres
Area in social life with political ramifications
The public sphere (German: Öffentlichkeit) is an area in social life where individuals can come together to freely discuss and identify societal problems
Public_sphere
Riemannian geometry, the Berger spheres form a special class of examples of Riemannian manifolds diffeomorphic to the 3-sphere. They are named for Marcel Berger
Berger's_sphere
Concept in neo-Calvinism
neo-Calvinism, sphere sovereignty (Dutch: soevereiniteit in eigen kring), also known as differentiated responsibility, is the concept that each sphere (or sector)
Sphere_sovereignty
Spherical triangle with three right angles
In geometry, an octant of a sphere is a spherical triangle with three right angles and three right sides. It is sometimes called a trirectangular (spherical)
Octant_of_a_sphere
The European public sphere refers to the public sphere where ideas and information are exchanged by citizens of European societies that can influence the
European_public_sphere
Polyhedron with four faces
For any tetrahedron there exists a sphere (called the circumsphere) on which all four vertices lie, and another sphere (the insphere) tangent to the tetrahedron's
Tetrahedron
Factory simulation game
Dyson Sphere Program is an upcoming factory simulation game developed by Youthcat Studio and published by Gamera Games. It was released in early access
Dyson_Sphere_Program
English rock band
Duran Duran (/djʊˌræn djʊˈræn/) are an English pop rock band. Formed in Birmingham in 1978 by keyboardist Nick Rhodes, guitarist (later bassist) John Taylor
Duran_Duran
Natural nodule-like rock concretions
Klerksdorp spheres are small objects, often spherical to disc-shaped, that have been collected by miners and rockhounds from 3-billion-year-old pyrophyllite
Klerksdorp_sphere
Personal computer released in 1975
The Sphere 1 was a personal computer completed in 1975 by Michael Donald Wise and Monroe Tyler of Sphere Corporation, of Bountiful, Utah. The Sphere 1 featured
Sphere_1
Concept in knot theory
In mathematical knot theory, a Conway sphere, named after John Horton Conway, is a 2-sphere intersecting a given knot or link in a 3-manifold transversely
Conway_sphere
Region of the observable universe
(named for the astronomer Edwin Hubble) or Hubble sphere, subluminal sphere, causal sphere and sphere of causality is a spherical region of the observable
Hubble_volume
Limit of spheres in algebraic topology
infinite-dimensional sphere is the inductive limit of all spheres. Although no sphere is contractible, the infinite-dimensional sphere is contractible and
Infinite-dimensional_sphere
Transparent dry-erase sphere used to teach spherical geometry
A Lénárt sphere is an educational manipulative and writing surface for exploring spherical geometry, invented by Hungarian István Lénárt as a modern replacement
Lénárt_sphere
American horror film
mausoleum, Mike is chased by a flying silver sphere and accosted by a caretaker, but escapes when the sphere kills the caretaker. Mike then flees the Tall
Phantasm_(film)
2014 studio album by Agalloch
The Serpent & the Sphere is the fifth and final studio album by American heavy metal band Agalloch. It was released on May 13, 2014 in the U.S., followed
The_Serpent_&_the_Sphere
Japanese manga series
manga, the City has come to resemble a series of layered, concentric Dyson spheres, filled with haphazard architecture and largely devoid of life. These layers
Blame!
Linux-based microcontroller system
Azure Sphere is an application platform with integrated communications and security features developed and managed by Microsoft for Internet Connected
Azure_Sphere
American jazz pianist and composer (1917–1982)
Thelonious Sphere Monk (/θəˈloʊniəs/ October 10, 1917 – February 17, 1982) was an American jazz pianist and composer. He had a unique improvisational style
Thelonious_Monk
scattering by spheres - this article list codes for electromagnetic scattering by a homogeneous sphere, layered sphere, and cluster of spheres. Majority of
Codes for electromagnetic scattering by spheres
Codes_for_electromagnetic_scattering_by_spheres
Magnetic device
Yttrium iron garnet spheres (YIG spheres) serve as magnetically tunable filters and resonators for microwave frequencies. YIG filters are used for their
YIG_sphere
Mechanism of electron transfer via a bridging ligand
Inner sphere electron transfer (IS ET) or bonded electron transfer is a redox chemical reaction that proceeds via a covalent linkage—a strong electronic
Inner sphere electron transfer
Inner_sphere_electron_transfer
Topics referred to by the same term
Lightning sphere may refer to: Ball lightning, a controversial atmospheric electrical phenomenon Plasma globe, a decorative electrical device using high
Lightning_sphere
3D coordinate system used in mathematics
6-sphere coordinates are a coordinate system for three-dimensional space obtained by inverting the 3D Cartesian coordinates across the unit 2-sphere x
6-sphere_coordinates
British R&D company
Sphere Bio (formerly known as Sphere Fluidics) became a brand of Fluidic Sciences Ltd following the acquisition of its business and assets in September
Sphere_Bio
Sphere tangent to every face of a polyhedron
In geometry, the inscribed sphere or insphere of a convex polyhedron is a sphere that is contained within the polyhedron and tangent to each of the polyhedron's
Inscribed_sphere
Italian and American DJ and producer
heading a residency, "Afterlife presents Anyma: The End of Genesys", at Sphere in Las Vegas, from late December to early 2025. He was the first electronic
Anyma
the fuzzy sphere is one of the simplest and most canonical examples of non-commutative geometry. Ordinarily, the functions defined on a sphere form a commuting
Fuzzy_sphere
Japanese pop band
Sphere (スフィア) are a Japanese pop idol group made up of voice actresses who are all managed by Sony Music Entertainment's Music Ray'n subdivision, under
Sphere_(group)
Sphere touching all of a polyhedron's vertices
In geometry, a circumscribed sphere of a polyhedron is a sphere that contains the polyhedron and touches each of the polyhedron's vertices. The word circumsphere
Circumscribed_sphere
Concept in theoretical astrophysics
In theoretical astrophysics, there can be a sphere of ionized hydrogen (H II) around a young star of the spectral classes O or B. The theory was derived
Strömgren_sphere
Environment mapping technique
In computer graphics, sphere mapping (or spherical environment mapping) is a parameterization of directional radiance obtained by projecting the reflection
Sphere_mapping
Topics referred to by the same term
Inner Sphere may refer to: Inner sphere complex, a type of ion-surface binding Inner sphere electron transfer, a chemical reaction involving closely associated
Inner_sphere
Holding company
The Stena Sphere consists of the three parent companies, Stena AB, Stena Sessan AB and Stena Metall AB, wholly owned by the Olsson family. Together they
Stena_Sphere
Book of minimum standards in humanitarian aid
The Sphere Handbook: Humanitarian Charter and Minimum Standards in Humanitarian Response often called the Sphere Standards is a textbook of minimum standards
The_Sphere_Handbook
Ancient Greek geocentric cosmological model
model of concentric (or homocentric) spheres, developed by Eudoxus, Callippus, and Aristotle, employed celestial spheres all centered on the Earth. In this
Concentric_spheres
1935 lithograph by M. C. Escher
Hand with Reflecting Sphere, also known as Self-Portrait in Spherical Mirror, is a lithograph by Dutch artist M. C. Escher, first printed in January 1935
Hand_with_Reflecting_Sphere
Sphere was a blog search engine. The Sphere search engine delivered blog posts based on algorithms that combine semantic matching with authority factors
Sphere_(website)
All ligands directly bound to the central metal atom of a chemical complex
coordination sphere refers to the array of molecules and ions (the ligands) directly attached to the central metal atom. The second coordination sphere consists
Coordination_sphere
In the mathematical field of topology, a sphere bundle is a fiber bundle in which the fibers are spheres S n {\displaystyle S^{n}} of some dimension n
Sphere_bundle
Topological space that locally resembles Euclidean space
Two-dimensional manifolds are also called surfaces. Examples include the plane, the sphere, and the torus, and also the Klein bottle and real projective plane. The
Manifold
SPHERE
SPHERE
Girl/Female
Biblical Latin
A sphere, buckle, or hand.
Girl/Female
Biblical
A sphere, buckle, or hand.
Girl/Female
American, Australian, British, English, Hebrew, Italian, Latin, Swedish
Pearl; A Little Sphere; A Gem of the Sea
Boy/Male
Afghan, Arabic, Indian, Muslim, Parsi
Soul of the Sphere of Mercury; Happy
Boy/Male
Greek, Indian
God of Jupiter; Sphere that Covers Jupiter
Biblical
a sphere, buckle, or hand
SPHERE
SPHERE
Boy/Male
Hindu, Indian
Great Ritual
Boy/Male
Muslim/Islamic
Slave of Allah
Girl/Female
Indian
Pledge
Boy/Male
Tamil
Sprout, Blossom
Female
Slovene
Slovene form of Latin Cæcilia, CECILIJA means "blind."Â
Boy/Male
Arabic
Sword of the Faith
Girl/Female
Arabic, Muslim
Violent Flower
Female
Hebrew
Variant spelling of Hebrew Iyzebel, IZEVEL means "Ba'al exalts," "unchaste," or "without cohabitation." In the bible, this is the name of the evil wife of King Ahab. She was eaten by dogs as prophesied by Elijah.
Boy/Male
Arabic
Grandeur; Glory
Boy/Male
Tamil
Radiant
SPHERE
SPHERE
SPHERE
SPHERE
SPHERE
n.
The office, or sphere of jurisdiction, of a sheriff; sheriffalty.
n.
A frequented track; habitual place of action; sphere; as, the walk of the historian.
v. t.
To place in a sphere, or among the spheres; to insphere.
v. i.
To be in contact; to be in a state of junction, so that no space is between; as, two spheres touch only at points.
n.
Domain; province; sphere.
imp. & p. p.
of Sphere
n.
One of the two small circles of the celestial sphere, situated on each side of the equator, at a distance of 23¡ 28/, and parallel to it, which the sun just reaches at its greatest declination north or south, and from which it turns again toward the equator, the northern circle being called the Tropic of Cancer, and the southern the Tropic of Capricorn, from the names of the two signs at which they touch the ecliptic.
a.
In the Kantian system, of or pertaining to that which can be determined a priori in regard to the fundamental principles of all human knowledge. What is transcendental, therefore, transcends empiricism; but is does not transcend all human knowledge, or become transcendent. It simply signifies the a priori or necessary conditions of experience which, though affording the conditions of experience, transcend the sphere of that contingent knowledge which is acquired by experience.
n.
Sphere or scope of observation.
n.
An inferior sphere, or field of action.
v. t.
To remove, as a planet, from its sphere or orb.
prep.
In a very general way, and with innumerable varieties of application, to connects transitive verbs with their remoter or indirect object, and adjectives, nouns, and neuter or passive verbs with a following noun which limits their action. Its sphere verges upon that of for, but it contains less the idea of design or appropriation; as, these remarks were addressed to a large audience; let us keep this seat to ourselves; a substance sweet to the taste; an event painful to the mind; duty to God and to our parents; a dislike to spirituous liquor.
n.
A point of a surface at which the curvatures of the normal sections are all equal to each other. A sphere may be osculatory to the surface in every direction at an umbilicus. Called also umbilic.
n.
A sphere or scheme of operation.
a.
Having the figure of a half sphere.
a.
Having a curved outline or form; especially, one like the arc of a circle or an ellipse, or a portion of the surface of a sphere; rotund; bulging; protuberant; not angular or pointed; as, a round arch; round hills.
n.
The portion of the surface of a sphere included between two parallel planes; the portion of a surface of revolution included between two planes perpendicular to the axis.
n.
A libration of the starry sphere in the Ptolemaic system; a motion ascribed to the firmament, to account for certain small changes in the position of the ecliptic and of the stars.
n.
The apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it.
n.
A sphere which is smaller than, and in its movements subject to, another; a satellite.