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  2. Table of mathematical symbols by introduction date - Wikipedia

    en.wikipedia.org/wiki/Table_of_mathematical...

    The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date. The table can also be ordered alphabetically by clicking on the relevant header title.

  3. Visual communication - Wikipedia

    en.wikipedia.org/wiki/Visual_communication

    Aldous Huxley is regarded as one of the most prominent explorers of visual communication and sight-related theories. [11] Becoming near-blind in his teen years as the result of an illness influenced his approach, and his work includes important novels on the dehumanizing aspects of scientific progress, most famously Brave New World and The Art of Seeing.

  4. List of California state symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_California_state...

    Blue represents the sky, and gold represents the color of the precious metal found by forty-niners in the state's hills. 1951 Dance: West Coast Swing: 1988 Dinosaur: Augustynolophus: 2017 Fabric Denim: 2016 [5] Fife and drum band California Consolidated Drum Band 1997 Flower: California poppy Eschscholzia californica: 1903 Folk dance: Square ...

  5. Symbols and conventions used in welding documentation

    en.wikipedia.org/wiki/Symbols_and_conventions...

    The symbolic representation of a V weld of chamfered plates in a technical drawing. The symbols and conventions used in welding documentation are specified in national and international standards such as ISO 2553 Welded, brazed and soldered joints -- Symbolic representation on drawings and ISO 4063 Welding and allied processes -- Nomenclature of processes and reference numbers.

  6. Greek alphabet - Wikipedia

    en.wikipedia.org/wiki/Greek_alphabet

    Three of the original Phoenician letters dropped out of use before the alphabet took its classical shape: the letter Ϻ , which had been in competition with Σ denoting the same phoneme /s/; the letter Ϙ , which was redundant with Κ for /k/, and Ϝ , whose sound value /w/ dropped out of the spoken language before or during the classical period.

  7. List of Maine state symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_Maine_state_symbols

    The oldest symbols, the state flag and the state seal, were adopted in 1820, [3] and the most recent additions to the list were, the state song of the 21st century, My Sweet Maine in 2021 [4] and the state butterfly, the pink-edged sulphur in 2023. [5]

  8. List of Florida state symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_Florida_state_symbols

    Location of the state of Florida in the United States of America. The state of Florida has numerous symbols defined by state statutes. The majority of the symbols were chosen after 1950; only the two oldest symbols—the state flower (chosen in 1909), and the state bird (chosen in 1927), and the state nickname (chosen in 1970)—are not listed in the 2010 Florida Statutes. [1]

  9. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements

    118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).