Jump to content

Portal:Science

Page semi-protected
From Wikipedia, the free encyclopedia
Portal topics
Activities
Culture
Geography
Health
History
Mathematics
Nature
People
Philosophy
Religion
Society
Technology
Random portal

Science portal

Members of the Academy in 1667 with Louis XIV

Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into two or three major branches: the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology), which study individuals and societies. The formal sciences (e.g., logic, mathematics, and theoretical computer science), which study formal systems governed by axioms and rules, are sometimes described as being sciences as well; however, they are often regarded as a separate field because they rely on deductive reasoning instead of the scientific method or empirical evidence as their main methodology. Applied sciences are disciplines that use scientific knowledge for practical purposes, such as engineering and medicine. (Full article...)

Outline of science

Featured article - load new batch

  Featured articles are displayed here, which represent some of the best content on English Wikipedia.
  • Image 1 Stela 51 from Calakmul, dating to 731, is the best preserved monument from the city. It depicts the king Yuknoom Tookʼ Kʼawiil. Maya stelae (singular stela) are monuments that were fashioned by the Maya civilization of ancient Mesoamerica. They consist of tall, sculpted stone shafts and are often associated with low circular stones referred to as altars, although their actual function is uncertain. Many stelae were sculpted in low relief, although plain monuments are found throughout the Maya region. The sculpting of these monuments spread throughout the Maya area during the Classic Period (250–900 AD), and these pairings of sculpted stelae and circular altars are considered a hallmark of Classic Maya civilization. The earliest dated stela to have been found in situ in the Maya lowlands was recovered from the great city of Tikal in Guatemala. During the Classic Period almost every Maya kingdom in the southern lowlands raised stelae in its ceremonial centre. (Full article...)

    Stela 51 from Calakmul, dating to 731, is the best preserved monument from the city. It depicts the king Yuknoom Tookʼ Kʼawiil.

    Maya stelae (singular stela) are monuments that were fashioned by the Maya civilization of ancient Mesoamerica. They consist of tall, sculpted stone shafts and are often associated with low circular stones referred to as altars, although their actual function is uncertain. Many stelae were sculpted in low relief, although plain monuments are found throughout the Maya region. The sculpting of these monuments spread throughout the Maya area during the Classic Period (250–900 AD), and these pairings of sculpted stelae and circular altars are considered a hallmark of Classic Maya civilization. The earliest dated stela to have been found in situ in the Maya lowlands was recovered from the great city of Tikal in Guatemala. During the Classic Period almost every Maya kingdom in the southern lowlands raised stelae in its ceremonial centre. (Full article...)
  • Image 2 Cast of the holotype tooth (DK 315), Natural History Museum, London Dromaeosauroides is a genus of dromaeosaurid theropod dinosaur from the Early Cretaceous of what is now Denmark and possibly also England. It was discovered in the Jydegaard Formation in the Robbedale valley, on the island of Bornholm in the Baltic Sea. This is the only likely place for dinosaur remains to be discovered on Danish territory, since the Mesozoic deposits exposed in the rest of the country are marine. Dromaeosauroides is the first known dinosaur from Denmark, and the only one which has been scientifically named. It is one of the oldest known dromaeosaurs in the world, and the first known uncontested dromaeosaur from the Early Cretaceous of Europe. (Full article...)

    Cast of the holotype tooth (DK 315), Natural History Museum, London

    Dromaeosauroides is a genus of dromaeosaurid theropod dinosaur from the Early Cretaceous of what is now Denmark and possibly also England. It was discovered in the Jydegaard Formation in the Robbedale valley, on the island of Bornholm in the Baltic Sea. This is the only likely place for dinosaur remains to be discovered on Danish territory, since the Mesozoic deposits exposed in the rest of the country are marine. Dromaeosauroides is the first known dinosaur from Denmark, and the only one which has been scientifically named. It is one of the oldest known dromaeosaurs in the world, and the first known uncontested dromaeosaur from the Early Cretaceous of Europe. (Full article...)
  • Image 3 The gray mouse lemur (Microcebus murinus), grey mouse lemur or lesser mouse lemur is a small lemur, a type of strepsirrhine primate, found only on the island of Madagascar. Weighing 58 to 67 grams (2.0 to 2.4 oz), it is the largest of the mouse lemurs (genus Microcebus), a group that includes the smallest primates in the world. The species is named for its mouse-like size and coloration and is known locally (in Malagasy) as tsidy, koitsiky, titilivaha, pondiky, and vakiandry. The gray mouse lemur and all other mouse lemurs are considered cryptic species, as they are nearly indistinguishable from each other by appearance. For this reason, the gray mouse lemur was considered the only mouse lemur species for decades until more recent studies began to distinguish between the species. (Full article...)

    The gray mouse lemur (Microcebus murinus), grey mouse lemur or lesser mouse lemur is a small lemur, a type of strepsirrhine primate, found only on the island of Madagascar. Weighing 58 to 67 grams (2.0 to 2.4 oz), it is the largest of the mouse lemurs (genus Microcebus), a group that includes the smallest primates in the world. The species is named for its mouse-like size and coloration and is known locally (in Malagasy) as tsidy, koitsiky, titilivaha, pondiky, and vakiandry. The gray mouse lemur and all other mouse lemurs are considered cryptic species, as they are nearly indistinguishable from each other by appearance. For this reason, the gray mouse lemur was considered the only mouse lemur species for decades until more recent studies began to distinguish between the species. (Full article...)
  • Image 4 The tammar wallaby (Notamacropus eugenii), also known as the dama wallaby or darma wallaby, is a small macropod native to South and Western Australia. Though its geographical range has been severely reduced since European colonisation, the tammar wallaby remains common within its reduced range and is listed as "Least Concern" by the International Union for Conservation of Nature (IUCN). It has been introduced to New Zealand and reintroduced to some areas of Australia where it had been previously extirpated. Skull variations differentiate between tammar wallabies from Western Australia, Kangaroo Island, and mainland South Australia, making them distinct population groups. (Full article...)

    The tammar wallaby (Notamacropus eugenii), also known as the dama wallaby or darma wallaby, is a small macropod native to South and Western Australia. Though its geographical range has been severely reduced since European colonisation, the tammar wallaby remains common within its reduced range and is listed as "Least Concern" by the International Union for Conservation of Nature (IUCN). It has been introduced to New Zealand and reintroduced to some areas of Australia where it had been previously extirpated. Skull variations differentiate between tammar wallabies from Western Australia, Kangaroo Island, and mainland South Australia, making them distinct population groups. (Full article...)
  • Image 5 Douglas in the 1990s Marjory Stoneman Douglas (April 7, 1890 – May 14, 1998) was an American journalist, author, women's suffrage advocate, and conservationist known for her staunch defense of the Everglades against efforts to drain it and reclaim land for development. Moving to Miami as a young woman to work for The Miami Herald, she became a freelance writer, producing over one hundred short stories that were published in popular magazines. Her most influential work was the book The Everglades: River of Grass (1947), which redefined the popular conception of the Everglades as a treasured river instead of a worthless swamp. Its impact has been compared to that of Rachel Carson's influential book Silent Spring (1962). Her books, stories, and journalism career brought her influence in Miami, enabling her to advance her causes. (Full article...)

    Douglas in the 1990s

    Marjory Stoneman Douglas (April 7, 1890 – May 14, 1998) was an American journalist, author, women's suffrage advocate, and conservationist known for her staunch defense of the Everglades against efforts to drain it and reclaim land for development. Moving to Miami as a young woman to work for The Miami Herald, she became a freelance writer, producing over one hundred short stories that were published in popular magazines. Her most influential work was the book The Everglades: River of Grass (1947), which redefined the popular conception of the Everglades as a treasured river instead of a worthless swamp. Its impact has been compared to that of Rachel Carson's influential book Silent Spring (1962). Her books, stories, and journalism career brought her influence in Miami, enabling her to advance her causes. (Full article...)
  • Image 6 Banksia aquilonia, commonly known as the northern banksia and jingana, is a tree in the family Proteaceae and is endemic to north Queensland on Australia's northeastern coastline. With an average height of 8 m (26 ft), it has narrow glossy green leaves up to 20 cm (7.9 in) long and 6 to 10 cm (2.4 to 3.9 in) high pale yellow flower spikes, known as inflorescences, appearing in autumn. As the spikes age, their flowers fall off and they develop up to 50 follicles, each of which contains two seeds. (Full article...)

    Banksia aquilonia, commonly known as the northern banksia and jingana, is a tree in the family Proteaceae and is endemic to north Queensland on Australia's northeastern coastline. With an average height of 8 m (26 ft), it has narrow glossy green leaves up to 20 cm (7.9 in) long and 6 to 10 cm (2.4 to 3.9 in) high pale yellow flower spikes, known as inflorescences, appearing in autumn. As the spikes age, their flowers fall off and they develop up to 50 follicles, each of which contains two seeds. (Full article...)
  • Image 7 Volubilis ruins Volubilis (Latin pronunciation: [wɔˈɫuːbɪlɪs]; Arabic: وليلي, romanized: walīlī; Berber languages: ⵡⵍⵉⵍⵉ, romanized: wlili) is a partly-excavated Berber-Roman city in Morocco situated near the city of Meknes that may have been the capital of the Kingdom of Mauretania, at least from the time of King Juba II. Before Volubilis, the capital of the kingdom may have been at Gilda. (Full article...)

    Volubilis ruins

    Volubilis (Latin pronunciation: [wɔˈɫuːbɪlɪs]; Arabic: وليلي, romanized: walīlī; Berber languages: ⵡⵍⵉⵍⵉ, romanized: wlili) is a partly-excavated Berber-Roman city in Morocco situated near the city of Meknes that may have been the capital of the Kingdom of Mauretania, at least from the time of King Juba II. Before Volubilis, the capital of the kingdom may have been at Gilda. (Full article...)
  • Image 8 The camas pocket gopher (Thomomys bulbivorus), also known as the camas rat or Willamette Valley gopher, is a rodent, the largest member in the genus Thomomys, of the family Geomyidae. First described in, it is endemic to the Willamette Valley of northwestern Oregon in the United States. The herbivorous gopher forages for vegetable and plant matter, which it collects in large, fur-lined, external cheek pouches. Surplus food is hoarded in an extensive system of tunnels. The dull-brown-to-lead-gray coat changes color and texture over the year. The mammal's characteristically large, protuberant incisors are well adapted for use in tunnel construction, particularly in the hard clay soils of the Willamette Valley. The gophers make chattering sounds with their teeth; males and females make purring (or crooning) sounds when they are together, and the young make twittering sounds. Born toothless, blind and hairless, the young grow rapidly before being weaned at about six weeks of age. (Full article...)

    The camas pocket gopher (Thomomys bulbivorus), also known as the camas rat or Willamette Valley gopher, is a rodent, the largest member in the genus Thomomys, of the family Geomyidae. First described in, it is endemic to the Willamette Valley of northwestern Oregon in the United States. The herbivorous gopher forages for vegetable and plant matter, which it collects in large, fur-lined, external cheek pouches. Surplus food is hoarded in an extensive system of tunnels. The dull-brown-to-lead-gray coat changes color and texture over the year. The mammal's characteristically large, protuberant incisors are well adapted for use in tunnel construction, particularly in the hard clay soils of the Willamette Valley. The gophers make chattering sounds with their teeth; males and females make purring (or crooning) sounds when they are together, and the young make twittering sounds. Born toothless, blind and hairless, the young grow rapidly before being weaned at about six weeks of age. (Full article...)
  • Image 9 In algebraic geometry and theoretical physics, mirror symmetry is a relationship between geometric objects called Calabi–Yau manifolds. The term refers to a situation where two Calabi–Yau manifolds look very different geometrically but are nevertheless equivalent when employed as extra dimensions of string theory. (Full article...)
    In algebraic geometry and theoretical physics, mirror symmetry is a relationship between geometric objects called Calabi–Yau manifolds. The term refers to a situation where two Calabi–Yau manifolds look very different geometrically but are nevertheless equivalent when employed as extra dimensions of string theory. (Full article...)
  • Image 10 Known collection localities of Monticolomys koopmani The Malagasy mountain mouse or Koopman's montane voalavo (Monticolomys koopmani) is a rodent within the subfamily Nesomyinae of the family Nesomyidae. It is monotypic within the genus Monticolomys, and is closely related to the big-footed mouse (Macrotarsomys). It is found in the highlands of eastern Madagascar. A small mouse-like rodent, it is dark brown on the upperparts and dark gray below. It has small, rounded, densely haired ears and broad feet with well-developed pads. The long tail lacks a tuft at the tip. The skull is delicate and lacks crests and ridges on its roof. (Full article...)

    Known collection localities of Monticolomys koopmani

    The Malagasy mountain mouse or Koopman's montane voalavo (Monticolomys koopmani) is a rodent within the subfamily Nesomyinae of the family Nesomyidae. It is monotypic within the genus Monticolomys, and is closely related to the big-footed mouse (Macrotarsomys). It is found in the highlands of eastern Madagascar. A small mouse-like rodent, it is dark brown on the upperparts and dark gray below. It has small, rounded, densely haired ears and broad feet with well-developed pads. The long tail lacks a tuft at the tip. The skull is delicate and lacks crests and ridges on its roof. (Full article...)
  • Image 11 New Forest pony at Spy Holms The New Forest pony is one of the recognised mountain and moorland or native pony breeds of the British Isles. Height varies from around 12 to 14.2 hands (48 to 58 inches, 122 to 147 cm); ponies of all heights should be strong, workmanlike, and of a good riding type. They are valued for hardiness, strength, and sure-footedness. (Full article...)

    New Forest pony at Spy Holms

    The New Forest pony is one of the recognised mountain and moorland or native pony breeds of the British Isles. Height varies from around 12 to 14.2 hands (48 to 58 inches, 122 to 147 cm); ponies of all heights should be strong, workmanlike, and of a good riding type. They are valued for hardiness, strength, and sure-footedness. (Full article...)
  • Image 12 Near the Tower of London, England The common raven (Corvus corax) is a large all-black passerine bird. It is the most widely distributed of all corvids, found across the Northern Hemisphere. It is a raven known by many names at the subspecies level; there are at least eight subspecies with little variation in appearance, although recent research has demonstrated significant genetic differences among populations from various regions. It is one of the two largest corvids, alongside the thick-billed raven, and is possibly the heaviest passerine bird; at maturity, the common raven averages 63 centimetres (25 inches) in length and 1.47 kilograms (3.2 pounds) in mass. Although their typical lifespan is considerably shorter, common ravens can live more than 23 years in the wild. Young birds may travel in flocks but later mate for life, with each mated pair defending a territory. (Full article...)

    Near the Tower of London, England

    The common raven (Corvus corax) is a large all-black passerine bird. It is the most widely distributed of all corvids, found across the Northern Hemisphere. It is a raven known by many names at the subspecies level; there are at least eight subspecies with little variation in appearance, although recent research has demonstrated significant genetic differences among populations from various regions. It is one of the two largest corvids, alongside the thick-billed raven, and is possibly the heaviest passerine bird; at maturity, the common raven averages 63 centimetres (25 inches) in length and 1.47 kilograms (3.2 pounds) in mass. Although their typical lifespan is considerably shorter, common ravens can live more than 23 years in the wild. Young birds may travel in flocks but later mate for life, with each mated pair defending a territory. (Full article...)
  • Image 13 Anning with her dog, Tray, painted before 1842; the hill Golden Cap can be seen in the background Mary Anning (21 May 1799 – 9 March 1847) was an English fossil collector, dealer, and palaeontologist. She became known internationally for her discoveries in Jurassic marine fossil beds in the cliffs along the English Channel at Lyme Regis in the county of Dorset, Southwest England. Anning's findings contributed to changes in scientific thinking about prehistoric life and the history of the Earth. (Full article...)

    Anning with her dog, Tray, painted before 1842; the hill Golden Cap can be seen in the background

    Mary Anning (21 May 1799 – 9 March 1847) was an English fossil collector, dealer, and palaeontologist. She became known internationally for her discoveries in Jurassic marine fossil beds in the cliffs along the English Channel at Lyme Regis in the county of Dorset, Southwest England. Anning's findings contributed to changes in scientific thinking about prehistoric life and the history of the Earth. (Full article...)
  • Image 14 Truman near his lodge in 1980, a few months before his death Harry R. Truman (October 1896 – May 18, 1980) was an American businessman, bootlegger, and prospector. He lived near Mount St. Helens, an active volcano in the state of Washington, and was the owner and caretaker of Mount St. Helens Lodge at Spirit Lake near the base of the mountain. Truman came to fame as a folk hero in the weeks leading up to the volcano's 1980 eruption after refusing to leave his home despite evacuation orders. He was killed by a pyroclastic flow that overtook his lodge and buried the site under 150 ft (46 m) of volcanic debris. (Full article...)

    Truman near his lodge in 1980, a few months before his death

    Harry R. Truman (October 1896 – May 18, 1980) was an American businessman, bootlegger, and prospector. He
    lived near Mount St. Helens, an active volcano in the state of Washington, and was the owner and caretaker of Mount St. Helens Lodge at Spirit Lake near the base of the mountain. Truman came to fame as a folk hero in the weeks leading up to the volcano's 1980 eruption after refusing to leave his home despite evacuation orders. He was killed by a pyroclastic flow that overtook his lodge and buried the site under 150 ft (46 m) of volcanic debris. (Full article...)
  • Image 15 The church at Waltham Abbey, where Hugh de Neville was buried Hugh de Neville (died 1234) was the Chief Forester under the kings Richard I, John and Henry III of England; he was the sheriff for a number of counties. Related to a number of other royal officials as well as a bishop, Neville was a member of Prince Richard's household. After Richard became king in 1189, Neville continued in his service and accompanied him on the Third Crusade. Neville remained in the royal service following Richard's death in 1199 and the accession of King John to the throne, becoming one of the new king's favourites and often gambling with him. He was named in Magna Carta as one of John's principal advisers, and considered by a medieval chronicler to be one of King John's "evil counsellors". He deserted John after the French invasion of England in 1216 but returned to pledge his loyalty to John's son Henry III after the latter's accession to the throne later that year. Neville's royal service continued until his death in 1234, though by then he was a less significant figure than he had been at the height of his powers. (Full article...)

    The church at Waltham Abbey, where Hugh de Neville was buried

    Hugh de Neville (died 1234) was the Chief Forester under the kings Richard I, John and Henry III of England; he was the sheriff for a number of counties. Related to a number of other royal officials as well as a bishop, Neville was a member of Prince Richard's household. After Richard became king in 1189, Neville continued in his service and accompanied him on the Third Crusade. Neville remained in the royal service following Richard's death in 1199 and the accession of King John to the throne, becoming one of the new king's favourites and often gambling with him. He was named in Magna Carta as one of John's principal advisers, and considered by a medieval chronicler to be one of King John's "evil counsellors". He deserted John after the French invasion of England in 1216 but returned to pledge his loyalty to John's son Henry III after the latter's accession to the throne later that year. Neville's royal service continued until his death in 1234, though by then he was a less significant figure than he had been at the height of his powers. (Full article...)
More featured articles
  Featured pictures about Science.
More featured pictures

Vital articles

  Vital articles to understand Science.
A plasma globe, using electrical energy to create plasma, light, heat, movement and a faint sound

Energy (from Ancient Greek ἐνέργεια (enérgeia) 'activity') is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed; matter and energy may also be converted to one another. The unit of measurement for energy in the International System of Units (SI) is the joule (J). (Full article...)

Did you know...

Did you know it about Science?

Get involved

For editor resources and to collaborate with other editors on improving Wikipedia's Science-related articles, visit WikiProject Science.
Science things you can do
Many naturally occurring phenomena approximate a normal distribution.
Many naturally occurring phenomena approximate a normal distribution.
  • Integrate relatively new scientific knowledge and findings (major studies reported on by RS) into relevant articles
  • Expand 2024 in science and/or other articles for science-related topics of the year (in the box on the right)
    • Create new articles for items of this article, mostly articles relating to new scientific fields/topics/findings (the page does not use redlinks anymore but you will quickly identify possible new articles when reading it; here you can find a version with over 60 redlinked examples)
    • Some of the lists' items have not yet been integrated into their wikilinked articles; if you add a study there it should also be relevant to at least one other article
    • Maybe this could be done as part of an organized effort
  • Find[how?] studies published under a compatible open license (like CC BY 4.0) and upload the studies' images with descriptions from the study and add these images to articles if they are relevant and useful there
    • When a study with a useful image is published under an incompatible or unclear license (or the image is published not in a study but elsewhere), you could contact its authors (Twitter/Mail) and ask them to give you the permission to upload them under CC BY 4.0 (or whether they could upload the image/s under a compatible license)
    • You can also think about whether images would be useful as you read a science-related article and then search for such images:
      • if they already exist add them (if already on WMCommons) or upload them (if the license is ok) or ask their authors for permissions
      • if they don't, you could create (or request) them

Science News

Further information: 2024 in science
5 November 2024 –
Researchers at Kyoto University in Japan launch LignoSat, the world's first wooden satellite constructed without screws or glue, into space. It will orbit Earth for six months. (DW)
10 October 2024 –
In its annual Living Planet report, the World Wildlife Fund estimates that wild populations of animal species have decreased over 70% since 1970, with some high-biodiversity areas seeing up to 95% declines. (DW)
10 October 2024 – Tomb of Christopher Columbus
Researchers from the University of Granada confirm that bones lying in the Seville Cathedral in Seville, Andalusia, Spain, belonged to Christopher Columbus. (ABC Spain)
9 October 2024 – Nobel Prize in Chemistry
This year's Nobel Prize in Chemistry is jointly awarded to British computer scientist Demis Hassabis and American chemist John M. Jumper for their work on protein structure prediction, and to American biochemist and computational biologist David Baker for his work on computational protein design. (The New York Times) (Nobel Prize)
8 October 2024 – Nobel Prize in Physics
American physicist John Hopfield and British-Canadian computer scientist Geoffrey Hinton are awarded this year's Nobel Prize in Physics "for foundational discoveries and inventions that enable machine learning with artificial neural networks". (The Guardian)
24 September 2024 –
Scientists from the University of Waterloo announce that they have positively identified bones found on King William Island in Nunavut, Canada, as those of James Fitzjames, captain of HMS Erebus during Franklin's lost expedition. (CBC News)

Top 10 WikiProject Science Popular articles of the month - load new batch

This following Science-related articles is a most visited articles of WikiProject Science, See complete list at Wikipedia:WikiProject Science/Popular pages.

Categories - load new batch

Select [►] to view subcategories.
Science
Branches of science
Scientific disciplines
Scientists
Science in society
Science and technology
Scientific terminology
Works about science
Science-related lists
Science books
Scientific buildings
Scientific classification
Scientific comparisons
Empiricism
Scientific exploration
Fringe science
History of science
Scientific instruments
Metascience
Scientific method
Natural history
Science occupations
Open science
Scientific organizations
People in science
Scientific phenomena
Science pioneers
Scientific problems
Quotations from science
Scientific speculation
Time in science
Women and science
Images by scientific discipline
Science stubs
Wikipedia categories named after science projects
Discover Wikipedia using portals

Purge server cache

Retrieved from "https://en.wikipedia.org/w/index.php?title=Portal:Science&oldid=1246080754"