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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Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations. Another major theme is evolution, which explains the unity and diversity of life. Energy processing is also important to life as it allows organisms to move, grow, and reproduce. Finally, all organisms are able to regulate their own internal environments. (Full article...)
Did you know...
- ... that several science fiction critics praised "Rock Diver", the first short story by American writer Harry Harrison, for its compelling take on technology for passing through matter?
- ... that the Ahichchhatra Jain temples were built to commemorate the attainment of kevala jnana (omniscience) by Parshvanatha, the 23rd tirthankara of Jainism?
- ... that a year after becoming the first woman president of the Canadian Political Science Association, Caroline Andrew moderated the first Canadian leaders' debate on women's issues?
- ... that a job offer from the Empire Cinema saved science fiction writer John Russell Fearn from factory-based war work that "damned near killed [him]"?
- ... that examples of artificial planets in science fiction include Riverworld, the Well World, and the Death Star?
- ... that at the age of 14, Jenny Suo conducted a science experiment that ultimately led to GlaxoSmithKline pleading guilty to breaching consumer protection laws?
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Science News
- 15 September 2024 – Polaris program
- The spacecraft of the Polaris Dawn private spaceflight mission operated by SpaceX returns to Earth after five days in orbit. (BBC News)
- 12 September 2024 – Polaris program
- American billionaire Jared Isaacman becomes the first person to perform a commercial spacewalk as part of the Polaris Dawn private spaceflight mission operated by SpaceX. (AP)
- 11 September 2024 – Spaceflight
- Following the launch of the Russian Soyuz MS-26 spacecraft from the Baikonur Cosmodrome in Kazakhstan, there were a record 19 people in outer space: the three astronauts on the MS-26 mission, three more on China's Tiangong space station, four people on the SpaceX Polaris Dawn mission, and nine more on board the International Space Station. (CollectSPACE)
- 24 July 2024 –
- Researchers from the Scottish Association for Marine Science report evidence of dark oxygen being produced from metals on the seafloor. It was previously assumed that almost all the free oxygen (O
2) on Earth was created through photosynthesis, which requires sunlight. (NPR) - 23 July 2024 –
- A study by the Oswaldo Cruz Foundation finds thirteen Brazilian sharpnose sharks off the coast of Brazil with high levels of cocaine in their muscles and livers. Experts believe that the cocaine is making its way into the waters via illegal labs where the drug is manufactured or through the excrement of drug users. (BBC News)
- 15 July 2024 – Mare Tranquillitatis pit
- In the journal Nature Astronomy, American and Italian scientists announce the discovery of a lunar cave, approximately 250 miles (400 km) from the landing site of Apollo 11. (AP) (Nature Astronomy)