Portal:Science
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Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the world. 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...)
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The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments. Space and time, according to the prevailing cosmological theory of the Big Bang, emerged together 13.787±0.020 billion years ago, and the universe has been expanding ever since. Today the universe has expanded into an age and size that is physically only in parts observable as the observable universe, which is approximately 93 billion light-years in diameter at the present day, while the spatial size, if any, of the entire universe is unknown. (Full article...)
Did you know...
- ... that Charlie Jane Anders wrote preferred pronouns into her science fiction novel Victories Greater Than Death because she thought that alien gender would be unclear to humans?
- ... that Margareth Rago seeks to establish a methodology for what she calls "feminist science"?
- ... that physicist Sabine Hossenfelder's book Existential Physics discusses whether free will, the multiverse, the existence of God, and the meaning of life are topics that science can answer?
- ... that after Ursula K. Le Guin published her collection The Wind's Twelve Quarters, a reviewer called her the "ideal science fiction writer for readers who ordinarily dislike science fiction"?
- ... that The Science of Dune contains a scientific analysis of the fictional concepts from the Dune franchise, such as sandworms, stillsuits, and the fictional drug melange?
- ... that after men took all the 2021 Nobel Prizes for science, one of the selectors, Eva Olsson, said "we want to have more women nominated"?
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Science News
- 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)
- 23 September 2024 – Deforestation of the Amazon rainforest
- Climate researchers report that since 1985, deforestation in the Amazon has caused the loss of an area of rainforest equal to the combined area of France and Germany. (France 24)