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  2. Spherical coordinate system - Wikipedia

    en.wikipedia.org/wiki/Spherical_coordinate_system

    The physics convention.Spherical coordinates (r, θ, φ) as commonly used: (ISO 80000-2:2019): radial distance r (slant distance to origin), polar angle θ (angle with respect to positive polar axis), and azimuthal angle φ (angle of rotation from the initial meridian plane).

  3. Penilaian Menengah Rendah - Wikipedia

    en.wikipedia.org/wiki/Penilaian_Menengah_Rendah

    Penilaian Menengah Rendah (commonly abbreviated as PMR; Malay for Lower Secondary Assessment) was a Malaysian public examination targeting Malaysian adolescents and young adults between the ages of 13 and 30 years taken by all Form Three high school and college students in both government and private schools throughout the country from independence in 1957 to 2013.

  4. Indonesia Open University - Wikipedia

    en.wikipedia.org/wiki/Indonesia_Open_University

    Open University (Indonesian: Universitas Terbuka, abbreviated as UT) is a public university in South Tangerang, Banten, Indonesia.The university employs a Open and Distance Learning (ODL) system to widen access to higher education to all Indonesian citizens, including those who live in remote islands throughout the country, and in various parts of the world.

  5. Polytunnel - Wikipedia

    en.wikipedia.org/wiki/Polytunnel

    Polytunnels on Balhungie Farm, Angus A polytunnel (also known as a polyhouse, hoop greenhouse or hoophouse, grow tunnel or high tunnel) is a tunnel typically made from steel and covered in polyethylene, usually semi-circular, square or elongated in shape.