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  2. Coronene - Wikipedia

    en.wikipedia.org/wiki/Coronene

    Crystals of β and γ coronene under daylight (left) and UV light (right). [8]Coronene is a planar circulene.It forms needle-like crystals with a monoclinic, herringbone-like structure.

  3. Safety data sheet - Wikipedia

    en.wikipedia.org/wiki/Safety_data_sheet

    An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.

  4. Datasheet - Wikipedia

    en.wikipedia.org/wiki/Datasheet

    Front page of a floppy disk controller data sheet (1979) A datasheet, data sheet, or spec sheet is a document that summarizes the performance and other characteristics of a product, machine, component (e.g., an electronic component), material, subsystem (e.g., a power supply), or software in sufficient detail that allows a buyer to understand what the product is and a design engineer to ...

  5. Sloan Digital Sky Survey - Wikipedia

    en.wikipedia.org/wiki/Sloan_Digital_Sky_Survey

    In July 2020, after a 20-year-long survey, astrophysicists of the Sloan Digital Sky Survey published the largest, most detailed 3D map of the universe so far, filled a gap of 11 billion years in its expansion history, and provided data which supports the theory of a flat geometry of the universe and confirms that different regions seem to be ...