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  2. AutoCAD version history - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_version_history

    The first release of the software started with version 1.0 in December 1982. [1] The software has been continuously updated since its initial release. AutoCAD opens documents with DWG compatibility as a "DWG file format version code" where the specific version code can be found by opening the .dwg file in Windows Notepad or any text editor program.

  3. AutoCAD - Wikipedia

    en.wikipedia.org/wiki/AutoCAD

    AutoCAD is a 2D and 3D computer-aided design (CAD) software application developed by Autodesk. [1] It was first released in December 1982 for the CP/M and IBM PC platforms as a desktop app running on microcomputers with internal graphics controllers . [ 2 ]

  4. CRC Handbook of Chemistry and Physics - Wikipedia

    en.wikipedia.org/wiki/CRC_Handbook_of_Chemistry...

    The CRC Handbook of Chemistry and Physics is a comprehensive one-volume reference resource for science research. First published in 1914, it is currently (as of 2024 [update] ) in its 105th edition, published in 2024.

  5. Oxford University Press - Wikipedia

    en.wikipedia.org/wiki/Oxford_University_Press

    In December 2023, concerns were raised that OUP had published an academic paper based on genetic data taken from the Uyghur population of Xinjiang, a Turkic ethnic group in China. [92] Rhys Blakely, a science correspondent for The Times , reported: "The research has been published online by Oxford University Press (OUP) in a journal that ...

  6. Mechanical engineering - Wikipedia

    en.wikipedia.org/wiki/Mechanical_engineering

    Various machine components used in mechanical engineering. Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. [1]

  7. Cracking (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Cracking_(chemistry)

    A higher cracking temperature (also referred to as severity) favors the production of ethylene and benzene, whereas lower severity produces higher amounts of propylene, C4-hydrocarbons and liquid products. The process also results in the slow deposition of coke, a form of carbon, on the reactor walls. Since coke degrades the efficiency of the ...

  8. National Standard Examination in Chemistry - Wikipedia

    en.wikipedia.org/wiki/National_Standard...

    The National Standard Examination in Chemistry or NSEC is an examination in chemistry for higher secondary school students in India, usually conducted in the end of November. [1] The examination is organized by the Indian Association of Chemistry Teachers. Over 30,000 students, mainly from Standard 12, sit for this examination.

  9. Charged aerosol detector - Wikipedia

    en.wikipedia.org/wiki/Charged_Aerosol_Detector

    The charged aerosol detector (CAD) is a detector used in conjunction with high-performance liquid chromatography (HPLC) and ultra high-performance liquid chromatography (UHPLC) to measure the amount of chemicals in a sample by creating charged aerosol particles which are detected using an electrometer.