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  2. Aluminum cycle - Wikipedia

    en.wikipedia.org/wiki/Aluminum_cycle

    A metamorphic rock called emery that is mostly made of corundum which is an aluminum oxide. This is an example of an aluminum deposit. Aluminum is the third most abundant element in the lithosphere at 82,000 ppm. It occurs in low levels, 0.9 ppm, in humans. [1] Aluminum is known to be an ecotoxicant and expected to be a health risk to people.

  3. List of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Windows...

    Windows 10 version 1709: Redstone 3 October 17, 2017 1709 16299 April 9, 2019 Windows 10 version 1803: Redstone 4 April 30, 2018 1803 17134 November 12, 2019 Windows 10 version 1809: Redstone 5 November 13, 2018 1809 17763 November 10, 2020 Windows 10 version 1903: 19H1 May 21, 2019 1903 18362 December 8, 2020 Windows 10 version 1909: Vanadium

  4. List of cycles - Wikipedia

    en.wikipedia.org/wiki/List_of_cycles

    Age of the Earth – Aluminum cycle – Arsenic cycle – Boron cycle – Bromine cycle – Cadmium cycle – Calcium cycle – Carbonate–silicate cycle – Chlorine cycle – Chromium cycle – Climate change – Copper cycleCycle of erosion – Dynamic topography – Dynamic topography – Earthquake cycle – Fluorine cycle – Glaciation – Gold cycle – Iodine cycle – Iron ...

  5. History of aluminium - Wikipedia

    en.wikipedia.org/wiki/History_of_aluminium

    Aluminium (or aluminum) metal is very rare in native form, and the process to refine it from ores is complex, so for most of human history it was unknown. However, the compound alum has been known since the 5th century BCE and was used extensively by the ancients for dyeing .

  6. Windows 10 version history - Wikipedia

    en.wikipedia.org/wiki/Windows_10_version_history

    Windows 10 is a major release of the Windows NT operating system developed by Microsoft.Microsoft described Windows 10 as an "operating system as a service" that would receive ongoing updates to its features and functionality, augmented with the ability for enterprise environments to receive non-critical updates at a slower pace or use long-term support milestones that will only receive ...

  7. Windows 10 (original release) - Wikipedia

    en.wikipedia.org/wiki/Windows_10_(original_release)

    The original version of Windows 10 (also retroactively named version 1507 [1] and codenamed "Threshold 1") was released in July 2015.It carries the build number 10.0.10240; while Microsoft has stated that there was no designated release to manufacturing (RTM) build of Windows 10, build 10240 was described as an RTM build by various media outlets.

  8. Aluminium - Wikipedia

    en.wikipedia.org/wiki/Aluminium

    Aluminium (or aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals , about one-third that of steel .

  9. Aluminium smelting - Wikipedia

    en.wikipedia.org/wiki/Aluminium_smelting

    Aluminium smelting is the process of extracting aluminium from its oxide, alumina, generally by the Hall-Héroult process.Alumina is extracted from the ore bauxite by means of the Bayer process at an alumina refinery.