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Spherical codes are higher-dimensional analogues of Tammes problem, which arose as an attempt to explain the distribution of pores on pollen grains.
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Spherical and are
Spherical concave backing surfaces support the diaphragm when excessive pressures are applied and prevent the stresses within the diaphragm from exceeding the elastic limit.
Spherical errors occur when errors have both uniform variance ( homoscedasticity ) and are uncorrelated with each other.
Spherical fullerenes are also called buckyballs, and they resemble the balls used in soccer.
Spherical mechanisms are constructed by connecting links with hinged joints such that the axes of each hinge passes through the same point.
Spherical coordinates, projected on the celestial sphere, are analogous to the geographic coordinate system used on the surface of the Earth.
Spherical waves are waves whose amplitude depends only upon the radial distance r from a central point source.
Spherical geometry obeys two of Euclid's postulates: the second postulate (" to produce a finite straight line continuously in a straight line ") and the fourth postulate (" that all right angles are equal to one another ").
Spherical harmonics are often used to approximate the shape of the geoid.
Spherical harmonics are important in many theoretical and practical applications, particularly in the computation of atomic orbital electron configurations, representation of gravitational fields, geoids, and the magnetic fields of planetary bodies and stars, and characterization of the cosmic microwave background radiation.
Spherical mirrors are easier to make than parabolic mirrors and they are often used to produce approximately collimated light.
which regular solutions for positive energies are given by so-called Bessel functions of the first kind ' so that the solutions written for R are the so-called Spherical Bessel function
Spherical coordinates are one of the most used curvilinear coordinate systems in such fields as Earth sciences, cartography, and physics ( in particular quantum mechanics, relativity ), engineering, etc.
Spherical 3-manifolds are sometimes called elliptic 3-manifolds or Clifford-Klein manifolds.
Spherical tokamaks are not limited by the same instabilities as tokamaks and as such the area is receiving considerable experimental attention.
Spherical astronomy is the branch of astronomy that is concerned with where celestial objects are located and how they move on the celestial sphere.
Spherical groups with a radially fibrous structure and bristled with crystals on the surface are not uncommon.
Spherical and which
** Spherical aberration, which occurs when light rays strike a lens or mirror near its edge
* Spherical coordinate system represents a point in three space by the distance from the origin and two angles measured from two reference lines which intersect the origin.
Along with her test she was required to take courses showing broader knowledge as well as prepare a thesis which was entitled Algebraic Groups of Spherical Trigonometry.
* Spherical shaped exhaust-manifold flange gaskets, which provided freedom of movement in the exhaust system and prevented leaks
Spherical trigonometry is a branch of spherical geometry which deals with polygons ( especially triangles ) on the sphere and the relationships between the sides and the angles.
Also in 1851 he wrote the textbook Lehrbuch der Sphärischen Astronomie, which he translated to English himself in 1865 as Handbook of Spherical Astronomy.
Still Life with Spherical Mirror is a lithography print by the Dutch artist M. C. Escher which was first printed in November, 1934.
Spherical triangle groups can be identified with the symmetry groups of regular polyhedra in the three-dimensional Euclidean space: Δ ( 2, 3, 3 ) corresponds to the tetrahedron, Δ ( 2, 3, 4 ) to both the cube and the octahedron ( which have the same symmetry group ), Δ ( 2, 3, 5 ) to both the dodecahedron and the icosahedron.
The START team began the Mega Ampere Spherical Tokamak Experiment or MAST in 1999 which still operates in the Culham Science Centre, UK.
Spherical and on
* Thin Spherical Lenses on Project PHYSNET.
Spherical trigonometry was studied by early Greek mathematicians such as Menelaus of Alexandria, who wrote a book on spherical trigonometry called Sphaerica and developed Menelaus ' theorem.
Spherical aberration of collimated light incident on a concave spherical mirror.
The complete list of such manifolds is given in the article on Spherical 3-manifolds.
* Cradle – Spherical bowl turned on its side, typically connected with a bowl.
He was the Principal Investigator ( PI ) on the Spacelab 3 mission NASA Drop Dynamics ( DDM ) experiments, PI on the NASA SPAR Flight Experiment # 77-18 " Dynamics of Liquid Bubble ," PI on the NASA SPAR Flight Experiment # 76-20 " Containerless Processing Technology ," and PI on the Department of Energy Experiment " Spherical Shell Technology.
* An Elementary Treatise on Plane and Spherical Trigonometry, Boston: James Munroe and Company.
* Quadrilateralized Spherical Cube, a mapping scheme for data collected on a spherical surface, such as a planet
* A Treatise on Spherical Catoptrics, published in the Phil.
Spherical triangles were studied by early Greek mathematicians such as Menelaus of Alexandria, who wrote a book on spherical triangles called Sphaerica and developed Menelaus ' theorem.
* Spherical errors occur when the optical power of the eye is either too large or too small to focus light on the retina.
However, he also published books on mathematical astronomy such as A Treatise on Spherical Astronomy.
Spherical astronomy or positional astronomy is the branch of astronomy that is used to determine the location of objects on the celestial sphere, as seen at a particular date, time, and location on the Earth.
* William M. Smart, edited by Robin M. Green, Textbook on Spherical Astronomy, 1977, Cambridge University Press, ISBN 0-521-29180-1.
Spherical and .
* Simon Newcomb, A Compendium of Spherical Astronomy ( Macmillan, 1906 – republished by Dover, 1960 ), 160-172.
* Spherical concave and convex mirrors do not focus parallel rays to a single point due to spherical aberration.
** M. C. Escher used special shapes of mirrors in order to achieve a much more complete view of his surroundings than by direct observation in Hand with Reflecting Sphere ( also known as Self-Portrait in Spherical Mirror ).
Select this link for an animation of a Spherical deployable mechanism.
Spherical geometry is similar to elliptical geometry.
Spherical coordinates ( r, θ, φ ) as often used in mathematics: radial distance r, azimuthal angle θ, and polar angle φ.
Spherical waves coming from a point source.
Spherical objects with this surface area have a radius or diameter in the range 89, 000 km to 564, 000 km.
* Planned completion of the Five hundred meter Aperture Spherical Telescope, in China.
* Spherical sector, portion of a sphere enclosed by a cone of radii from the center of the sphere.
* SDEC Spherical Discrete Element Code.
* Chute Maven ( Hustrulid Technologies Inc .) Spherical Discrete Element Modeling in 3 Dimensions.
Spherical particles undergo less particle rearrangement than irregular particles.
Spherical stone shot were chosen because of cheapness ; forged iron, bronze and lead balls were tried, but the expense prevented their general adoption.
* Robin Michael Green, Spherical Astronomy.
: See also Spherical law of cosines and Half-side formula.
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