Portal:World

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The world 
The world 
The Blue Marble, a photograph of the planet Earth made on 7 December 1972 by the crew of the Apollo 17 spacecraft.

The world is the totality of entities, the whole of reality, or everything that exists. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of parts.

In scientific cosmology, the world or universe is commonly defined as "[t]he totality of all space and time; all that is, has been, and will be". Theories of modality talk of possible worlds as complete and consistent ways how things could have been. Phenomenology, starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In philosophy of mind, the world is contrasted with the mind as that which is represented by the mind. Theology conceptualizes the world in relation to God, for example, as God's creation, as identical to God or as the two being interdependent. In religions, there is a tendency to downgrade the material or sensory world in favor of a spiritual world to be sought through religious practice. A comprehensive representation of the world and our place in it, as is found in religions, is known as a worldview. Cosmogony is the field that studies the origin or creation of the world while eschatology refers to the science or doctrine of the last things or of the end of the world.

In various contexts, the term "world" takes a more restricted meaning associated, for example, with the

world religion", "world language", "world government", "world war", "world population", "world economy", or "world championship". (Full article...
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Selected articles - show another

  • Image 1 Internationalism is a political principle that advocates greater political or economic cooperation among states and nations. It is associated with other political movements and ideologies, but can also reflect a doctrine, belief system, or movement in itself. Supporters of internationalism are known as internationalists and generally believe that humans should unite across national, political, cultural, racial, or class boundaries to advance their common interests, or that governments should cooperate because their mutual long-term interests are of greater importance than their short-term disputes. (Full article...)
    Internationalism is a political principle that advocates greater political or economic cooperation among states and nations. It is associated with other political movements and ideologies, but can also reflect a doctrine, belief system, or movement in itself.

    Supporters of internationalism are known as internationalists and generally believe that humans should unite across national, political, cultural, racial, or class boundaries to advance their common interests, or that governments should cooperate because their mutual long-term interests are of greater importance than their short-term disputes. (Full article...)
  • Image 2 The BWF World Tour is a Grade 2 badminton tournament series, sanctioned by Badminton World Federation (BWF). It is a competition open to the top world ranked players in singles (men's and women's) and doubles (men's, women's and mixed). The competition was announced on 19 March 2017 and came into effect starting from 2018, replacing the BWF Super Series, which was held from 2007 to 2017. The BWF World Tour are divided into six levels, namely World Tour Finals, Super 1000, Super 750, Super 500, and Super 300 in order (part of the HSBC World Tour). One other category of tournament, the BWF Tour Super 100 level, also offers ranking points. (Full article...)
    The
    2018, replacing the BWF Super Series, which was held from 2007 to 2017.

    The BWF World Tour are divided into six levels, namely World Tour Finals, Super 1000, Super 750, Super 500, and Super 300 in order (part of the HSBC World Tour). One other category of tournament, the BWF Tour Super 100 level, also offers ranking points. (Full article...
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  • Image 3 A megacity is a very large city, typically with a population of more than 10 million people. The United Nations Department of Economic and Social Affairs in its 2018 "World Urbanization Prospects" report defines megacities as urban agglomerations with over 10 million inhabitants. A University of Bonn report holds that they are "usually defined as metropolitan areas with a total population of 10 million or more people". Elsewhere in other sources, from five to eight million is considered the minimum threshold, alongside a population density of at least 2,000 per square kilometre. The terms conurbation, metropolis, and metroplex are also applied to the latter. The total number of megacities in the world varies between different sources: The world had 33 according to the UN (in 2018), 45 according to CityPopulation.de (in 2023), and 44 according to Demographia (in 2023). About half of these urban agglomerations are in China and India. The other four countries with more than one megacity are Brazil, Japan, Pakistan, and the United States. African megacities are present in Nigeria, Egypt, South Africa, and the DRC; European megacities are present in Russia, France, the United Kingdom, and Turkey (also in Asia); megacities can be found in Latin America in the countries of Brazil, Mexico, Colombia, Peru, and Argentina. Some sources identify Tokyo's Greater Tokyo Area as the largest megacity in the world, while some others give the title to the Pearl River Delta in China. (Full article...)
    A
    the DRC; European megacities are present in Russia, France, the United Kingdom, and Turkey (also in Asia); megacities can be found in Latin America in the countries of Brazil, Mexico, Colombia, Peru, and Argentina. Some sources identify Tokyo's Greater Tokyo Area as the largest megacity in the world, while some others give the title to the Pearl River Delta in China. (Full article...
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  • Image 4 Earth's history with time-spans of the eons to scale The history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to understanding of the main events of Earth's past, characterized by constant geological change and biological evolution. The geological time scale (GTS), as defined by international convention, depicts the large spans of time from the beginning of the Earth to the present, and its divisions chronicle some definitive events of Earth history. (In the graphic, Ma means "million years ago".) Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen. Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. While the Earth was in its earliest stage (Early Earth), a giant impact collision with a planet-sized body named Theia is thought to have formed the Moon. Over time, the Earth cooled, causing the formation of a solid crust, and allowing liquid water on the surface. In June 2023, scientists reported evidence that the planet Earth may have formed in just three million years, much faster than the 10−100 million years thought earlier. (Full article...)
    Earth's history with time-spans of the eons to scale

    The history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to understanding of the main events of Earth's past, characterized by constant geological change and biological evolution.

    The geological time scale (GTS), as defined by international convention, depicts the large spans of time from the beginning of the Earth to the present, and its divisions chronicle some definitive events of Earth history. (In the graphic, Ma means "million years ago".) Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen. Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. While the Earth was in its earliest stage (Early Earth), a giant impact collision with a planet-sized body named Theia is thought to have formed the Moon. Over time, the Earth cooled, causing the formation of a solid crust, and allowing liquid water on the surface. In June 2023, scientists reported evidence that the planet Earth may have formed in just three million years, much faster than the 10−100 million years thought earlier. (Full article...)
  • Image 5 Proto-globalization or early modern globalization is a period of the history of globalization roughly spanning the years between 1600 and 1800, following the period of archaic globalization. First introduced by historians A. G. Hopkins and Christopher Bayly, the term describes the phase of increasing trade links and cultural exchange that characterized the period immediately preceding the advent of so-called "modern globalization" in the 19th century. Proto-globalization distinguished itself from modern globalization on the basis of expansionism, the method of managing global trade, and the level of information exchange. The period is marked by the shift of hegemony to Western Europe, the rise of larger-scale conflicts between powerful nations such as the Thirty Years' War, and demand for commodities, most particularly slaves. The triangular trade made it possible for Europe to take advantage of resources within the western hemisphere. The transfer of plant and animal crops and epidemic diseases associated with Alfred Crosby's concept of the Columbian exchange also played a central role in this process. Proto-globalization trade and communications involved a vast group including European, Middle Eastern, Indian, Southeast Asian, and Chinese merchants, particularly in the Indian Ocean region. (Full article...)
    Alfred Crosby's concept of the Columbian exchange also played a central role in this process. Proto-globalization trade and communications involved a vast group including European, Middle Eastern, Indian, Southeast Asian, and Chinese merchants, particularly in the Indian Ocean region. (Full article...
    )
  • Image 6 The rocky side of a mountain creek in Costa Rica Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere, hydrosphere/cryosphere, atmosphere, and geosphere (or lithosphere). Earth science can be considered to be a branch of planetary science but with a much older history. There are reductionist and holistic approaches to Earth sciences. It is also the study of Earth and its neighbors in space. Some Earth scientists use their knowledge of the planet to locate and develop energy and mineral resources. Others study the impact of human activity on Earth's environment, and design methods to protect the planet. Some use their knowledge about Earth processes such as volcanoes, earthquakes, and hurricanes to help protect people from these dangerous events. (Full article...)
    The rocky side of a mountain creek in Costa Rica


    Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere, hydrosphere/cryosphere, atmosphere, and geosphere (or lithosphere). Earth science can be considered to be a branch of planetary science but with a much older history.

    There are reductionist and holistic approaches to Earth sciences. It is also the study of Earth and its neighbors in space. Some Earth scientists use their knowledge of the planet to locate and develop energy and mineral resources. Others study the impact of human activity on Earth's environment, and design methods to protect the planet. Some use their knowledge about Earth processes such as volcanoes, earthquakes, and hurricanes to help protect people from these dangerous events. (Full article...)
  • Image 7 An aerial view of the Andes between Santiago in Chile and Mendoza, Argentina with a large ice field on the southern slope of San José volcano (left), Marmolejo (right), and Tupungato (far right) The Andes (/ˈændiːz/ AN-deez), Andes Mountains or Andean Mountain Range (Spanish: Cordillera de los Andes; Quechua: Anti) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is 8,900 km (5,530 mi) long and 200 to 700 km (124 to 435 mi) wide (widest between 18°S and 20°S latitude) and has an average height of about 4,000 m (13,123 ft). The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina. Along their length, the Andes are split into several ranges, separated by intermediate depressions. The Andes are the location of several high plateaus—some of which host major cities such as Quito, Bogotá, Cali, Arequipa, Medellín, Bucaramanga, Sucre, Mérida, El Alto and La Paz. The Altiplano Plateau is the world's second-highest after the Tibetan Plateau. These ranges are in turn grouped into three major divisions based on climate: the Tropical Andes, the Dry Andes, and the Wet Andes. (Full article...)

    Quechua: Anti) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is 8,900 km (5,530 mi) long and 200 to 700 km (124 to 435 mi) wide (widest between 18°S and 20°S latitude) and has an average height of about 4,000 m (13,123 ft). The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina.

    Along their length, the Andes are split into several ranges, separated by intermediate depressions. The Andes are the location of several high plateaus—some of which host major cities such as Quito, Bogotá, Cali, Arequipa, Medellín, Bucaramanga, Sucre, Mérida, El Alto and La Paz. The Altiplano Plateau is the world's second-highest after the Tibetan Plateau. These ranges are in turn grouped into three major divisions based on climate: the Tropical Andes, the Dry Andes, and the Wet Andes. (Full article...
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Savage Isles
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The Cape Verde archipelago was uninhabited until the 15th century, when Portuguese explorers discovered and colonized the islands, thus establishing the first European settlement in the tropics. Because the Cape Verde islands were conveniently located to play a role in the Atlantic slave trade, Cape Verde became economically prosperous during the 16th and 17th centuries, attracting merchants, privateers, and pirates. It declined economically in the 19th century after the suppression of the Atlantic slave trade, and many of its inhabitants emigrated during that period. However, Cape Verde gradually recovered economically by becoming an important commercial center and useful stopover point along major shipping routes. Cape Verde became independent in 1975. (Full article...)
List of countries
See also: List of sovereign states

Wonders of the World - show another

The
The National on June 7, 2007, making the official Seven Wonders of Canada, the Canoe, the Igloo, Niagara Falls, Old Quebec City, Pier 21 Halifax, Prairie Skies, and the Rockies. CBC anchor Peter Mansbridge commented on the top winner, “it’s hard to imagine Canada being Canada without the canoe. Explorers, missionaries, fur traders and First Nations—they’re all linked by this subtle and simple craft. To many, the quintessential Canadian experience begins by picking up a paddle. That’s why the canoe is one of the seven wonders” (Osler 2014). There were over 25,000 nominations and 1 million votes cast, according to the CBC website. The top audience votes were the Sleeping Giant, Niagara Falls, the Bay of Fundy, Nahanni National Park Reserve, the Northern Lights, the Rockies, and the Cabot Trail. The CBC website has a dedicated section for the Seven Wonders of Canada (https://www.cbc.ca/sevenwonders/index.html). (Full article...
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About 17 percent of the mainland of Norway is protected. Of this, ca. 8.3 percent is national parks, 1.3 percent is nature reserves and 4.7 percent otherwise protected. (Full article...
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  • Image 14 Cadw is the historic environment service of the Welsh Government which manages historical buildings and ancient monuments in Wales. (Full article...)
    Cadw is the historic environment service of the Welsh Government which manages historical buildings and ancient monuments in Wales. (Full article...)
  • Image 15 A view of Kaptai National Park This is a list of protected areas of Bangladesh. Bangladesh is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 163 million people in an area of either 148,460 square kilometres (57,320 sq mi) or 147,570 square kilometres (56,980 sq mi), making it one of the most densely populated countries in the world. (Full article...)
    A view of Kaptai National Park

    This is a list of protected areas of Bangladesh. Bangladesh is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 163 million people in an area of either 148,460 square kilometres (57,320 sq mi) or 147,570 square kilometres (56,980 sq mi), making it one of the most densely populated countries in the world. (Full article...)
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