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  2. Paraboloidal coordinates - Wikipedia

    en.wikipedia.org/wiki/Paraboloidal_coordinates

    Paraboloidal coordinates are three-dimensional orthogonal coordinates (,,) that generalize two-dimensional parabolic coordinates.They possess elliptic paraboloids as one-coordinate surfaces.

  3. Paraboloid - Wikipedia

    en.wikipedia.org/wiki/Paraboloid

    The paraboloid is hyperbolic if every other plane section is either a hyperbola, or two crossing lines (in the case of a section by a tangent plane). The paraboloid is elliptic if every other nonempty plane section is either an ellipse, or a single point (in the case of a section by a tangent plane). A paraboloid is either elliptic or hyperbolic.

  4. Translation surface (differential geometry) - Wikipedia

    en.wikipedia.org/wiki/Translation_surface...

    ellipt. paraboloid, parabol. cylinder, hyperbol. paraboloid as translation surface translation surface: the generating curves are a sine arc and a parabola arc Shifting a horizontal circle along a helix. Simple examples: Right circular cylinder: is a circle (or another cross section) and is a line.

  5. Parabolic reflector - Wikipedia

    en.wikipedia.org/wiki/Parabolic_reflector

    A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid , that is, the surface generated by a parabola revolving around its axis.

  6. Bowl game schedule today: Breaking down the two college ...

    www.aol.com/bowl-game-schedule-today-breaking...

    College football's bowl season continues Wednesday with a pair of games on opposite coasts. We break down the Boca Raton Bowl and LA Bowl.

  7. List of map projections - Wikipedia

    en.wikipedia.org/wiki/List_of_map_projections

    Used in aviation charts. 1805 Albers conic: Conic Equal-area Heinrich C. Albers: Two standard parallels with low distortion between them. c. 1500: Werner: Pseudoconical Equal-area, equidistant Johannes Stabius: Parallels are equally spaced concentric circular arcs.

  8. Fortnite players 'tricked' into unwanted purchases are ... - AOL

    www.aol.com/fortnite-players-tricked-unwanted...

    U.S. consumers who were “tricked” into purchases they didn't want from Fortnite maker Epic Games are now starting to receive refund checks, the Federal Trade Commission said this week. Back in ...

  9. Daughter Admits She Used to Throw Plates Away Rather Than ...

    www.aol.com/lifestyle/daughter-admits-she-used...

    A college student has revealed a hilarious secret from her teenage years to her parents. The young woman, named Sam, shared a video on TikTok on Tuesday, Dec. 10, in which she and her parents took ...