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  2. Portal:Geography - Wikipedia

    en.wikipedia.org/wiki/Portal:Geography

    The St. Johns River (Spanish: Río San Juan) is the longest river in the U.S. state of Florida and it is the most significant one for commercial and recreational use. At 310 miles (500 km) long, it flows north and winds through or borders twelve counties.

  3. Portal:Mathematics - Wikipedia

    en.wikipedia.org/wiki/Portal:Mathematics

    The manipulations of the Rubik's Cube form the Rubik's Cube group. In mathematics, a group is a set with an operation that associates an element of the set to every pair of elements of the set (as does every binary operation) and satisfies the following constraints: the operation is associative, it has an identity element, and every element of the set has an inverse element.

  4. Portal venous system - Wikipedia

    en.wikipedia.org/wiki/Portal_venous_system

    The human hepatic portal system delivers about three-fourths of the blood going to the liver.The final common pathway for transport of venous blood from spleen, pancreas, gallbladder and the abdominal portion of the gastrointestinal tract [2] (with the exception of the inferior part of the anal canal and sigmoid colon) is through the hepatic portal vein.

  5. Portal:Czech Republic - Wikipedia

    en.wikipedia.org/wiki/Portal:Czech_Republic

    The Czech Republic, also known as Czechia, is a landlocked country in Central Europe.Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast.

  6. Portal:Oregon - Wikipedia

    en.wikipedia.org/wiki/Portal:Oregon

    Oregon (/ ˈ ɒr ɪ ɡ ən,-ɡ ɒ n / ⓘ ORR-ih-ghən, -⁠gon) is a state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho.

  7. Portal (1986 video game) - Wikipedia

    en.wikipedia.org/wiki/Portal_(1986_video_game)

    Portal is a text-driven adventure with a graphical interface published for the Amiga in 1986 by Activision. [ citation needed ] The writing is by American author Rob Swigart , and it was produced by Brad Fregger.

  8. Portal axle - Wikipedia

    en.wikipedia.org/wiki/Portal_axle

    Comparison between normal and portal axles Pinzgauer portal axle. A portal axle (or portal gear lift) is an off-road vehicle suspension and drive technology where the axle tube or the half-shaft is offset from – usually above – the center of the wheel hub and where driving power is transferred to each wheel via a simple gearbox, built onto each hub. [1]

  9. Portal:Medicine - Wikipedia

    en.wikipedia.org/wiki/Portal:Medicine

    The Medicine Portal The color fresco Care of The Sick by Domenico di Bartolo , 1441–1442, depicting the Santa Maria della Scala hospital in Siena, Italy Medicine is the science and practice of caring for patients, managing the diagnosis , prognosis , prevention , treatment , palliation of their injury or disease , and promoting their health .