- paraboloids
- pa·rab·o·loid || pə'ræbəlɔɪd n. mathematical surface wherein intersections with planes produce parabolas or hyperbolas or ellipses
English contemporary dictionary. 2014.
English contemporary dictionary. 2014.
Roman surface — The Roman surface (so called because Jakob Steiner was in Rome when he thought of it) is a self intersecting mapping of the real projective plane into three dimensional space, with an unusually high degree of symmetry. The mapping is not an… … Wikipedia
Parabolic coordinates — are a two dimensional orthogonal coordinate system in which the coordinate lines are confocal parabolas. A three dimensional version of parabolic coordinates is obtained by rotating the two dimensional system about the symmetry axis of the… … Wikipedia
Parabola — For other uses, see Parabola (disambiguation). A parabola … Wikipedia
Archimedes — For other uses, see Archimedes (disambiguation). Archimedes of Syracuse (Greek: Ἀρχιμήδης) … Wikipedia
Parabolic reflector — Parallel waves coming in to a parabolic mirror are focused at a point F A parabolic reflector (or dish or mirror) is a reflective device used to collect or project energy such as light, sound, or radio waves. Its shape is that of a circular… … Wikipedia
Apache Plaza — was a former shopping center, located in St. Anthony, Minnesota, a small suburb of Minneapolis. This mall has historic significance because it was one of the first enclosed malls in the US, and was the second such center in the state of Minnesota … Wikipedia
Molonglo Observatory Synthesis Telescope — The Molonglo Observatory Synthesis Telescope (MOST) is a radio telescope operating at 843 MHz. It is operated by the School of Physics of the University of Sydney. The telescope is located near the Molonglo River near Canberra, Australian Capital … Wikipedia
Hyperboloid structure — Hyperboloid structures are architectural structures designed with hyperboloid geometry. Often these are tall structures such as towers where the hyperboloid geometry s structural strength is used to support an object high off the ground, but… … Wikipedia
Paraboloidal coordinates — are a three dimensional orthogonal coordinate system (λ,μ,ν) that generalizes the two dimensional parabolic coordinate system. Similar to the related ellipsoidal coordinates, the paraboloidal coordinate system has orthogonal quadratic coordinate… … Wikipedia
Cassegrain-Antenne — Dieser Artikel behandelt Parabolantennen und ihre Technik, für Parabolantennen zum Rundfunkempfang über Fernsehsatelliten siehe Parabolantenne (TV) Parabolantenne der Erdfunkstelle Raisting, Bayern Eine Parabolantenne, umgangssprachlich auch… … Deutsch Wikipedia