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Portal:Science

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Science portal

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A magnet levitates above a superconductor

Science (from Latin scientia 'knowledge') is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.

The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age. The recovery and assimilation of Greek works and Islamic inquiries into Western Europe from the 10th to 13th century revived " natural philosophy", which was later transformed by the Scientific Revolution that began in the 16th century as new ideas and discoveries departed from previous Greek conceptions and traditions. The scientific method soon played a greater role in knowledge creation and it was not until the 19th century that many of the institutional and professional features of science began to take shape; along with the changing of "natural philosophy" to "natural science."

Modern science is typically divided into three major branches that consist of the natural sciences (e.g., biology, chemistry, and physics), which study nature in the broadest sense; the social sciences (e.g., economics, psychology, and sociology), which study individuals and societies; and the formal sciences (e.g., logic, mathematics, and theoretical computer science), which deal with symbols governed by rules. There is disagreement, however, on whether the formal sciences actually constitute a science as they do not rely on empirical evidence. Disciplines that use existing scientific knowledge for practical purposes, such as engineering and medicine, are described as applied sciences.

New knowledge in science is advanced by research from scientists who are motivated by curiosity about the world and a desire to solve problems. Contemporary scientific research is highly collaborative and is usually done by teams in academic and research institutions, government agencies, and companies. The practical impact of their work has led to the emergence of science policies that seek to influence the scientific enterprise by prioritizing the development of commercial products, armaments, health care, public infrastructure, and environmental protection. ( Full article...)

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Lightning is a powerful natural electrostatic discharge of lighted streaks produced during a thunderstorm. This abrupt electric discharge is accompanied by the emission of visible light and other forms of electromagnetic radiation. The electric current passing through the discharge channels rapidly heats and expands the air into plasma, producing acoustic shock waves (thunder) in the atmosphere.

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Richard Phillips Feynman
Richard Phillips Feynman (May 11, 1918 – February 15, 1988) was one of the most influential American physicists of the 20th century, expanding greatly upon the theory of quantum electrodynamics. As well as being an inspiring lecturer and amateur musician, also later he became a member of the panel which investigated the Space Shuttle Challenger disaster. For his work on quantum electrodynamics, Feynman was one of the recipients of the Nobel Prize in Physics in 1965, along with Julian Schwinger and Shin-Ichiro Tomonaga.

Feynman was a keen and influential popularizer of physics in both his books and lectures. He is famous for his many adventures, detailed in the books Surely You're Joking, Mr. Feynman!, What Do You Care What Other People Think? and Tuva or Bust!. Posthumously, Feynman is often credited with helping catalyze the field of nanotechnology through his December 1959 talk called There's Plenty of Room at the Bottom. Richard Feynman was, in many respects, an eccentric and a free spirit.

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Science News

29 November 2021 –
Researchers from the National Autonomous University of Mexico discover two new antibiotic molecules inside the venom of a scorpion from the Diplocentrus genus, which may hold the properties to stop several different kinds of harmful bacteria and tumour cells. (The Yucatan Times)
25 November 2021 – COVID-19 pandemic
South African scientists detect a new COVID-19 variant named Lineage B.1.1.529 that poses a "major threat" to efforts to reduce the spread of the virus, and blames the variant for the exponential rise of new cases in the country. (Deutsche Welle)
16 November 2021 – Belarus–European Union relations
Researchers at the American cybersecurity firm Mandiant report that the Belarusian government has ties to the hacker group Ghostwriter, which was accused of targeting various German politicians and ministries in September and has since been accused of launching misinformation campaigns against Poland, Lithuania, Latvia, and Ukraine. (RFE/RL)
5 November 2021 – Climate change
Researchers from James Cook University report that 98% of the Great Barrier Reef has been affected by coral bleaching as a result of climate change, which is more than was previously thought to have been affected. (The Guardian)
28 October 2021 –
At least 300 Olive ridley sea turtles have washed up dead on Mexico's Pacific coast, after being tangled in illegal fishing nets in the high seas. The species is listed as vulnerable. (BBC News)
23 October 2021 – Discoveries of exoplanets
Scientists at the University of Hawaiʻi at Mānoa announce the discovery of 2M0437b, one of the youngest exoplanets ever found at a distant star. The exoplanet was discovered using the Subaru Telescope at the observatory on Mauna Kea. (SciTech)

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