Portal:Science
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Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.

The earliest roots in the history 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: natural sciences (e.g., biology, chemistry, and physics), which study the physical world; 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 study formal systems, governed by axioms and rules. There is disagreement whether the formal sciences are science disciplines, because they do not rely on empirical evidence. Applied sciences are disciplines that use scientific knowledge for practical purposes, such as in engineering and medicine.

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 ethical and moral development of commercial products, armaments, health care, public infrastructure, and environmental protection. (Full article...)

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Gallium melts in your hand.
Credit: Foobar
Gallium (IPA: /'gali?m/) is a chemical element that has the symbol Ga and atomic number 31. A rare, soft silvery metallic poor metal, gallium is a brittle solid at low temperatures but liquefies slightly above room temperature and will melt in the hand. It occurs in trace amounts in bauxite and zinc ores. An important application is in the compound gallium arsenide, used as a semiconductor, most notably in light-emitting diodes (LEDs).

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Emil Adolf von Behring
Emil Adolf von Behring (March 15, 1854 – March 31, 1917) was born at Hansdorf, Eylau, Germany (as Emil Adolf Behring). Between 1874 and 1878, he studied medicine at the Army Medical College in Berlin. He was mainly a military doctor and then became Professor of Hygienics within the Faculty of Medicine at the University of Marburg. Behring was the discoverer of diphtheria antitoxin and attained a great reputation by that means and by his contributions to the study of immunity. He won the first Nobel Prize in Physiology or Medicine in 1901 for developing a serum therapy against diphtheria (this was worked on with Emile Roux) and tetanus. The former had been a scourge of the population, especially children, whereas the other was a leading cause of death in wars, killing the wounded.

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Ring-tailed lemur

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Science News

9 August 2022 - Discoveries of exoplanets
Scientists say that they have discovered AS 209, a newborn Jupiter-sized exoplanet via the Atacama Large Millimeter Array telescope in Chile. (Space.com)
28 July 2022 -
Researchers using AlphaFold have predicted the structures of 200 million proteins from 1 million species, covering nearly every known protein on the planet. (Nature)
21 July 2022 - Holocene extinction
Conservation-reliant species
The monarch butterfly is added by the International Union for Conservation of Nature to its endangered species list because of rapidly decreasing population numbers. (AP)
18 July 2022 -
Wild European bison are reintroduced to the United Kingdom for the first time in over a thousand years after three are released into a pine forest in Kent, England. (BBC News
14 July 2022 -
At least 30 green sea turtles are found dead off a beach in Kumejima, Japan, with many having been stabbed in the neck. The green sea turtle is an endangered species. (BBC)

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