A spherical design, part of combinatorial design theory in mathematics, is a finite set of N points on the d-dimensional unit d-sphere Sd such that the...
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In mathematics, a spherical coordinate system specifies a given point in three-dimensional space by using a distance and two angles as its three coordinates...
43 KB (6,355 words) - 18:22, 18 July 2025
of design of experiments. Two particularly important types of t-designs in quantum mechanics are projective and unitary t-designs. A spherical design is...
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2-(v,k,λ) design with k ≡ x ≡ y (mod 2) generates a binary self-orthogonal code (when bordered if k is odd). Room squares A spherical design is a finite...
33 KB (4,367 words) - 12:36, 9 July 2025
In optics, spherical aberration (SA) is a type of aberration found in optical systems that have elements with spherical surfaces. This phenomenon commonly...
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The spherical cow is a humorous metaphor for highly simplified scientific models of complex phenomena. Originating in theoretical physics, the metaphor...
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The Five-hundred-meter Aperture Spherical Telescope (FAST; Chinese: 五百米口径球面射电望远镜), nicknamed Tianyan (天眼, lit. "Sky's/Heaven's Eye"), is a radio telescope...
40 KB (3,876 words) - 01:34, 25 June 2025
Vostok (spacecraft) (section Design)
satellites. The descent module design was reused, in heavily modified form, by the Voskhod program. The craft consisted of a spherical descent module (mass 2...
10 KB (1,078 words) - 05:59, 13 July 2025
with a resolution of 108 megapixels. The Panono camera features a spherical design that incorporates 36 individual lenses that simultaneously captures...
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Marina Bay Sands (section Design and construction)
feature the company's first store that sits on water and one that is of spherical design. The luxury resort also features a performance venue Sands Theatre...
66 KB (6,028 words) - 01:23, 19 July 2025
Flat Earth (section Greece: spherical Earth)
Plato wrote about a spherical Earth. By about 330 BC, his former student Aristotle had provided strong empirical evidence for a spherical Earth. Knowledge...
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The layer cake was an early design for a weapon using thermonuclear reactions, involving an spherical implosion bomb design that contained alternating...
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addition the secondary is now easier to fabricate, as it is spherical rather than parabolic. This design is also called a Mersenne–Schmidt, since it uses a Mersenne...
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nearly spherical containment designs for PWRs have also been constructed. Depending on the material used, this is the most apparently logical design because...
26 KB (3,264 words) - 23:22, 19 July 2025
September 2020, the fourth-generation Echo Dot was revealed with a new spherical design that was 30 percent smaller than the third-generation Echo. It features...
64 KB (6,826 words) - 20:05, 16 July 2025
4/3 the amount for the ideal cylindrical design with the same inner and outer radii. However, for a spherical struction, access to the region of uniform...
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mixed reviews from critics following its unveiling. While its unique spherical design was praised, the Nexus Q was criticized for its lack of functionality...
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A spherical robot, also known as spherical mobile robot, or ball-shaped robot is a mobile robot with spherical external shape. A spherical robot is typically...
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SKF. The design of the bearing that Arvid Palmgren invented is similar to the design that is still in use in modern machines. Most spherical roller bearings...
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The Teller–Ulam design is the technical concept behind thermonuclear weapons, also known as hydrogen bombs. The design relies on the radiation implosion...
63 KB (7,241 words) - 01:37, 4 July 2025
originally modeled after those carried by B-52s but were adapted into a spherical design to more closely match Star Wars visuals. Depiction Within Star Wars...
63 KB (6,976 words) - 05:06, 18 July 2025
The roughly spherical shape of Earth can be empirically evidenced by many different types of observation, ranging from ground level, flight, or orbit...
47 KB (6,287 words) - 01:47, 17 July 2025
"Mak") is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the...
16 KB (1,736 words) - 14:49, 18 July 2025
Ferris wheel (section Terminology and design)
to 2021, has externally mounted motorised capsules of a transparent spherical design, and is described as both a Ferris wheel and an observation wheel by...
128 KB (9,857 words) - 18:34, 18 June 2025
A spherical tokamak is a type of fusion power device based on the tokamak principle. It is notable for its very narrow profile, or aspect ratio. A traditional...
46 KB (6,572 words) - 13:54, 1 February 2025
the characteristics of the oil and gas industry". The essentially spherical design of the logo, meant to exemplify PetroChina's global development stratagem...
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Thermonuclear weapon (redirect from Teller-ulam design)
the Trident II SLBM, had a prolate primary (code-named Komodo) and a spherical secondary (code-named Cursa) inside a specially shaped radiation case...
118 KB (13,488 words) - 14:15, 19 July 2025
directions. The spherical roller thrust bearing was introduced by SKF in 1939. The design of the early bearings is similar to the design that is still in...
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Horton sphere (redirect from Spherical tank)
(sometimes spelled Hortonsphere), also referred to as a spherical tank or simply sphere, is a spherical pressure vessel, which is used for industrial-scale...
6 KB (630 words) - 16:49, 8 June 2024