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Spherical geometry is not elliptic geometry but shares with that geometry the property that a line has no parallels through a given point.
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Spherical and geometry
Spherical geometry is similar to elliptical geometry.
* Spherical geometry
Spherical geometry is the geometry of the two-dimensional surface of a sphere.
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 geometry
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.
* Spherical geometry
Category: Spherical geometry
Spherical and is
* Spherical segment, is a portion of a sphere cut off by a pair of parallel planes
Spherical aberration is an optical effect observed in an optical device ( lens, mirror, etc.
The complete list of such manifolds is given in the article on Spherical 3-manifolds.
The first Seidel aberration, Spherical Aberration, is independent of the position of the exit pupil ( as it is the same for axial and extra-axial pencils ).
Spherical mirror distortion is used in projection systems that utilize a digital video projector and a first surface convex spherical mirror to project images onto a dome.
Spherical equivalent refraction is normally used to determine soft lens power and spherical glasses power.
Struycken is also an avid photographer with a website devoted to his Spherical Panoramas.
* Spherical errors occur when the optical power of the eye is either too large or too small to focus light on the retina.
Spherical mirrors may be used for direction finding by moving the sensor rather than the mirror ; another unusual example is the Arecibo Observatory ; see also
Still Life with Spherical Mirror is a lithography print by the Dutch artist M. C. Escher which was first printed in November, 1934.
Hand with Reflecting Sphere also known as Self-Portrait in Spherical Mirror is a lithograph print by Dutch artist M. C. Escher, first printed in January 1935.
Spherical tokamaks are not limited by the same instabilities as tokamaks and as such the area is receiving considerable experimental attention.
:; Spherical generation: The proper expression for making or turning a shape is to generate as in to generate a form around a fixed axis of revolution.
The Mega Ampere Spherical Tokamak, or MAST experiment is a nuclear fusion experiment in operation at Culham, Oxfordshire, United Kingdom since December 1999.
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 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.
Spherical symmetry is a characteristic feature of many solutions of Einstein's field equations of general relativity, especially the Schwarzschild solution.
An absolute location is designated using a specific pairing of latitude and longitude, a Cartesian coordinate grid ( e. g., a Spherical coordinate system ), an ellipsoid-based system ( e. g., World Geodetic System ), or similar methods.
Spherical and elliptic
Spherical 3-manifolds are sometimes called elliptic 3-manifolds or Clifford-Klein manifolds.
Spherical and with
Spherical errors occur when errors have both uniform variance ( homoscedasticity ) and are uncorrelated with each other.
* Still Life with Spherical Mirror, lithograph ( 1934 )
* Hand with Reflecting Sphere also known as Self-Portrait in Spherical Mirror, lithograph ( 1935 )
** 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 ).
Spherical mechanisms are constructed by connecting links with hinged joints such that the axes of each hinge passes through the same point.
Spherical objects with this surface area have a radius or diameter in the range 89, 000 km to 564, 000 km.
Early in 1942, Wallis began experimenting with skipping marbles over water tanks in his garden, leading to his April 1942 paper " Spherical Bomb — Surface Torpedo ".
Spherical harmonics were first investigated in connection with the Newtonian potential of Newton's law of universal gravitation in three dimensions.
* Cradle – Spherical bowl turned on its side, typically connected with a bowl.
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 buildings arise in two quite different ways in connection with the affine building X for SL < sub > n </ sub >( Q < sub > p </ sub >):
His publications include " Spherical Gravitational Waves " ( a collaboration with Peter Bergmann, former research assistant to Albert Einstein ), " Contributions to the Quantization Problem in General Relativity ", and " The Normal Modes Of A Hanging Oscillator Of Order N ".
* Wolfram's mathworld: Spherical Trigonometry a more thorough list of identities, with some derivation
As an inventor, Sperling created, with Mike Simmons, the Astroscan telescope for Edmund Scientific, as well as " The Stars Above " star-finder for Spherical Concepts.
es: Still Life with Spherical Mirror
* Still Life with Spherical Mirror
* Still Life with Spherical Mirror
This sculpture first appears in Escher ’ s 1934 lithograph Still Life with Spherical Mirror.
Spherical aberration occurs due to the increased refraction of light rays that occurs when rays strike a lens, or a reflection of light rays that occurs when rays strike a mirror near its edge in comparison with those that strike nearer the center.
0.301 seconds.