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  2. Double cone - Wikipedia

    en.wikipedia.org/wiki/Double_cone

    Double cone may refer to: Double cone (geometry) Double cone (biology) The Remarkables Mountain range, in New Zealand; Ventana Double Cone, a mountain in the Santa ...

  3. Double cone (biology) - Wikipedia

    en.wikipedia.org/wiki/Double_cone_(biology)

    Some double cones have members with same opsin (twin cones), while others have members with different cone types (members have a different spectral sensitivity). [3] Behavioural research on the reef dwelling triggerfish Rhinecanthus aculeatus has provided evidence that individual members of double cones can act as independent channels of colour ...

  4. Cone - Wikipedia

    en.wikipedia.org/wiki/Cone

    A right circular cone and an oblique circular cone A double cone (not shown infinitely extended) 3D model of a cone. A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex.

  5. Conic section - Wikipedia

    en.wikipedia.org/wiki/Conic_section

    A conic is the curve obtained as the intersection of a plane, called the cutting plane, with the surface of a double cone (a cone with two nappes).It is usually assumed that the cone is a right circular cone for the purpose of easy description, but this is not required; any double cone with some circular cross-section will suffice.

  6. Conical surface - Wikipedia

    en.wikipedia.org/wiki/Conical_surface

    An elliptic cone, a special case of a conical surface In geometry , a conical surface is a three-dimensional surface formed from the union of lines that pass through a fixed point and a space curve .

  7. Day shapes - Wikipedia

    en.wikipedia.org/wiki/Day_shapes

    Cone, apex down 3. Vessel towing Diamond Tow > 200 m 3. Vessel being towed Diamond Tow > 200 m 4,11. Fishing (with restricted maneuvrability) 2 cones (apexes together) > 20 m (extra cone: gear extending more than 150 metres in that direction) 5. Not under command 2 balls (vert. line) > 12 m 6. Minesweeping 3 balls 7,10.

  8. Kent State with loss to Buffalo could complete the worst ...

    www.aol.com/kent-state-loss-buffalo-could...

    With another double-digit loss, the Flashes would join 2017 Texas-El Paso, 2015 Kansas and 2005 Temple as the only winless teams since 2000 to have only one game against FBS competition decided by ...

  9. Dual cone and polar cone - Wikipedia

    en.wikipedia.org/wiki/Dual_cone_and_polar_cone

    A cone C in a vector space X is said to be self-dual if X can be equipped with an inner product ⋅,⋅ such that the internal dual cone relative to this inner product is equal to C. [3] Those authors who define the dual cone as the internal dual cone in a real Hilbert space usually say that a cone is self-dual if it is equal to its internal dual.