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  2. School - Wikipedia

    en.wikipedia.org/wiki/School

    A school is both the educational institution and building designed to provide learning spaces and learning environments for the teaching of students under the direction of teachers. Most countries have systems of formal education, which is sometimes compulsory. [2] In these systems, students progress through a series of schools that can be ...

  3. Nitrogen - Wikipedia

    en.wikipedia.org/wiki/Nitrogen

    Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.

  4. Robotics - Wikipedia

    en.wikipedia.org/wiki/Robotics

    Robotics is the interdisciplinary study and practice of the design, construction, operation, and use of robots. [1] Within mechanical engineering, robotics is the design and construction of the physical structures of robots, while in computer science, robotics focuses on robotic automation algorithms. Other disciplines contributing to robotics ...

  5. Mater Dei High School (Santa Ana, California) - Wikipedia

    en.wikipedia.org/wiki/Mater_Dei_High_School...

    Mater Dei High School (Santa Ana, California) /  33.72667°N 117.88306°W  / 33.72667; -117.88306. Mater Dei High School is a private, Catholic, co-educational secondary school in Santa Ana, California, located in and administered by the Diocese of Orange. Mater Dei is nationally known for its strong sports programs, especially in ...

  6. Greta Thunberg - Wikipedia

    en.wikipedia.org/wiki/Greta_Thunberg

    Greta Thunberg, Stockholm November 2018 Thunberg says she first heard about climate change in 2011, when she was eight years old, and could not understand why so little was being done about it. The situation depressed her, and as a result, at the age of 11, she stopped talking and eating much and lost ten kilograms (22 lb) in two months. Eventually, she was diagnosed with Asperger syndrome ...

  7. Category:Science portals - Wikipedia

    en.wikipedia.org/wiki/Category:Science_portals

    See also the Science Portal for finding out more articles about sciences and others specific science dedicated portals. Subcategories This category has the following 12 subcategories, out of 12 total.

  8. Portal (video game) - Wikipedia

    en.wikipedia.org/wiki/Portal_(video_game)

    Portal. (video game) Portal is a 2007 puzzle - platform game developed and published by Valve. It was released in a bundle, The Orange Box, for Windows, Xbox 360 and PlayStation 3, and has been since ported to other systems, including Mac OS X, Linux, Android (via Nvidia Shield ), and Nintendo Switch .

  9. Downton Abbey - Wikipedia

    en.wikipedia.org/wiki/Downton_Abbey

    Downton Abbey is a British historical drama television series set in the early 20th century, created and co-written by Julian Fellowes. It first aired in the United Kingdom on ITV on 26 September 2010 and in the United States on PBS, which supported its production as part of its Masterpiece Classic anthology, on 9 January 2011.