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  1. Vor 7 Stunden · Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms. [2] : 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science . Quantum mechanics can describe many systems that ...

  2. en.wikipedia.org › wiki › VenusVenus - Wikipedia

    Vor 7 Stunden · Venus is the second planet from the Sun. It is a terrestrial planet and is the closest in mass and size to its orbital neighbour Earth. Venus is notable for having the densest atmosphere of the terrestrial planets, composed mostly of carbon dioxide with a thick, global sulfuric acid cloud cover.

  3. en.wikipedia.org › wiki › RiyadhRiyadh - Wikipedia

    Vor 7 Stunden · The golden ball that lies atop the tower is said to be inspired by a ballpoint pen, and contains a restaurant; immediately below this is an outside viewing deck. There is a shopping center with major world brands at ground level. Al Faisaliyah Centre also has a hotel on both sides of the tower while the main building is occupied by office. The Al Faisaliyah Tower has 44 stories.

  4. en.wikipedia.org › wiki › BrazilBrazil - Wikipedia

    Vor 7 Stunden · Including its Atlantic islands, Brazil lies between latitudes 6°N and 34°S, and longitudes 28° and 74°W. [15] Brazil is the fifth largest country in the world, and third largest in the Americas, with a total area of 8,515,767.049 km 2 (3,287,956 sq mi), [179] including 55,455 km 2 (21,411 sq mi) of water.

  5. Vor einem Tag · The African National Congress ( ANC) is a political party in South Africa. It originated as a liberation movement known for its opposition to apartheid and has governed the country since 1994, when the first post-apartheid election resulted in Nelson Mandela being elected as President of South Africa. Cyril Ramaphosa, the incumbent national ...

  6. Vor 7 Stunden · 573692. Website. www .portlandmaine .gov. Portland ( / ˈpɔːrtlənd / PORT-lənd) is the most populous city in the U.S. state of Maine and the seat of Cumberland County. Portland's population was 68,408 in April 2020. [4] The Greater Portland metropolitan area has a population of approximately 550,000 people.