Portal:Science
Science portal
Science is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the world. Modern science is typically divided into three major branches: the natural sciences (e.g., physics, chemistry, and biology), 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, as they do not rely on empirical evidence. Applied sciences are disciplines that use scientific knowledge for practical purposes, such as in engineering and medicine. (Full article...)
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A chemical element is a chemical substance that cannot be broken down into other substances by chemical reactions. The basic particle that constitutes a chemical element is the atom. Chemical elements are identified by the number of protons in the nuclei of their atoms, known as the element's atomic number. For example, oxygen has an atomic number of 8, meaning that each oxygen atom has 8 protons in its nucleus. Two or more atoms of the same element can combine to form molecules, in contrast to chemical compounds or mixtures, which contain atoms of different elements. Atoms can be transformed into different elements in nuclear reactions, which change an atom's atomic number. (Full article...)
Did you know...
- ... that Brazilian computer science researcher and internet pioneer Tadao Takahashi negotiated with drug lords to install internet equipment in his country?
- ... that Research Policy is regarded as the leading journal in the field of innovation studies?
- ... that pacifist Theodora Wilson Wilson's science fiction book The Last Weapon was banned by the British Government in 1917?
- ... that characters from several different science fiction media appear as an Easter egg in the episode "Babylon's Ashes"?
- ... that Guy Parmelin, now President of Switzerland, opened the study program of cyber security of the Lucerne School of Information Technology in 2018?
- ... 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
- 17 May 2024 –
- Scientists using the James Webb Space Telescope discover the earliest known merging of black holes, 740 million years after the Big Bang. (AP)
- 15 May 2024 – Discoveries of exoplanets
- Scientists announce the discovery of SPECULOOS-3 b, an Earth-size exoplanet that orbits a red dwarf star that has a similar size as Jupiter. (Space.com)
- 8 May 2024 –
- Researchers at Google DeepMind announce the development of AlphaFold 3, an AI model that can predict the structures of almost all biological molecules and model the interactions between them. (Time) (Nature)
- 17 April 2024 –
- Scientists announce that they have identified fossil remains of the Ichthyotitan, the largest marine reptile currently known, in the Westbury Formation in England. (NOS)
- 16 April 2024 –
- European Space Agency scientists announce the discovery of Gaia BH3, the second-largest known black hole in the Milky Way. (NOS) (ESA)
- 4 April 2024 – 2020–2024 H5N1 outbreak
- Scientists from the Federation University Australia report that thousands of Adélie penguins have been found dead in Antarctica amid an increase in bird flu cases among wild bird populations. (Reuters)