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  2. Nabla symbol - Wikipedia

    en.wikipedia.org/wiki/Nabla_symbol

    The nabla is a triangular symbol resembling an inverted Greek delta: [1] or ∇. The name comes, by reason of the symbol's shape, from the Hellenistic Greek word νάβλα for a Phoenician harp, [2] [3] and was suggested by the encyclopedist William Robertson Smith in an 1870 letter to Peter Guthrie Tait.

  3. Inverted pyramid (journalism) - Wikipedia

    en.wikipedia.org/wiki/Inverted_pyramid_(journalism)

    The inverted pyramid method visualised. The inverted pyramid is a metaphor used by journalists and other writers to illustrate how information should be prioritised and structured in prose (e.g., a news report).

  4. Inverted pyramid - Wikipedia

    en.wikipedia.org/wiki/Inverted_pyramid

    Inverted pyramid may refer to: . Inverted pyramid (journalism), a metaphor in journalism for how information should be prioritized and structured in a text Inverted pyramid (management), also known as a "reverse hierarchy", an organizational structure that inverts the classical pyramid of hierarchical organisations

  5. Euclidean space - Wikipedia

    en.wikipedia.org/wiki/Euclidean_space

    Euclidean space was introduced by ancient Greeks as an abstraction of our physical space. Their great innovation, appearing in Euclid's Elements was to build and prove all geometry by starting from a few very basic properties, which are abstracted from the physical world, and cannot be mathematically proved because of the lack of more basic tools.

  6. Golden Triangle of Jakarta - Wikipedia

    en.wikipedia.org/wiki/Golden_Triangle_of_Jakarta

    The Golden Triangle of Jakarta (Indonesian: Segitiga Emas Jakarta), also referred to as the Medan Merdeka–Thamrin–Sudirman Axis (Indonesian: Poros Medan Merdeka–Thamrin–Sudirman) or the Sudirman–Thamrin–Kuningan Axis (Indonesian: Poros Sudirman–Thamrin–Kuningan), is a roughly triangular area in the center of Jakarta, Indonesia, extending from Central Jakarta to South Jakarta.

  7. Chaoyang, Beijing - Wikipedia

    en.wikipedia.org/wiki/Chaoyang,_Beijing

    Chaoyang District (simplified Chinese: 朝阳区; traditional Chinese: 朝陽區; pinyin: Cháoyáng Qū) is an urban district of Beijing.It borders the districts of Shunyi to the northeast, Tongzhou to the east and southeast, Daxing to the south, Fengtai to the southwest, Dongcheng, Xicheng, and Haidian to the west, and Changping to the northwest.