Portal:History of science
The History of Science Portal
The history of science covers the development of science from ancient times to the present. It encompasses all three major branches of science: natural, social, and formal. Protoscience, early sciences, and natural philosophies such as alchemy and astrology during the Bronze Age, Iron Age, classical antiquity, and the Middle Ages declined during the early modern period after the establishment of formal disciplines of science in the Age of Enlightenment.
Science's earliest roots can be traced to Ancient Egypt and Mesopotamia around 3000 to 1200 BCE. These civilizations' contributions to mathematics, astronomy, and medicine influenced later Greek natural philosophy of classical antiquity, wherein 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 Latin-speaking Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but continued to thrive in the Greek-speaking Byzantine Empire. Aided by translations of Greek texts, the Hellenistic worldview was preserved and absorbed into the Arabic-speaking 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 the learning of natural philosophy in the West. Traditions of early science were also developed in ancient India and separately in ancient China, the Chinese model having influenced Vietnam, Korea and Japan before Western exploration. Among the Pre-Columbian peoples of Mesoamerica, the Zapotec civilization established their first known traditions of astronomy and mathematics for producing calendars, followed by other civilizations such as the Maya.
Natural philosophy was transformed during the Scientific Revolution in 16th- to 17th-century Europe, as new ideas and discoveries departed from previous Greek conceptions and traditions. The New Science that emerged was more mechanistic in its worldview, more integrated with mathematics, and more reliable and open as its knowledge was based on a newly defined scientific method. More "revolutions" in subsequent centuries soon followed. The chemical revolution of the 18th century, for instance, introduced new quantitative methods and measurements for chemistry. In the 19th century, new perspectives regarding the conservation of energy, age of Earth, and evolution came into focus. And in the 20th century, new discoveries in genetics and physics laid the foundations for new sub disciplines such as molecular biology and particle physics. Moreover, industrial and military concerns as well as the increasing complexity of new research endeavors ushered in the era of "big science," particularly after World War II. (Full article...)
Selected article -
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/28/SDI_Logo.svg/220px-SDI_Logo.svg.png)
The Strategic Defense Initiative (SDI), derisively nicknamed the Star Wars program, was a proposed missile defense system intended to protect the United States from attack by ballistic nuclear missiles. The program was announced in 1983, by President Ronald Reagan. Reagan called for a system that would render nuclear weapons obsolete, and to end the doctrine of mutual assured destruction (MAD), which he described as a "suicide pact". Elements of the program reemerged in 2019 under the Space Development Agency (SDA).
The Strategic Defense Initiative Organization (SDIO) was set up in 1984 within the US Department of Defense to oversee development. Advanced weapon concepts, including lasers, particle-beam weapons, and ground and space-based missile systems were studied, along with sensor, command and control, and computer systems needed to control a system consisting of hundreds of combat centers and satellites spanning the globe. The US held a significant advantage in advanced missile defense systems through decades of extensive research and testing. Several concepts, technologies and insights obtained were transferred to subsequent programs. Under SDIO's Innovative Sciences and Technology Office, investment was made in basic research at national laboratories, universities, and in industry. These programs have continued to be key sources of funding for research scientists in particle physics, supercomputing/computation, advanced materials, and other critical science and engineering disciplines. (Full article...)
Selected image
![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Haeckel_Actiniae.jpg/250px-Haeckel_Actiniae.jpg)
A lithograph from the 1904 edition of Ernst Haeckel's Kunstformen der Natur (Art Forms of Nature), depicting a variety of sea anemones.
Did you know
...that in the history of paleontology, very few naturalists before the 17th century recognized fossils as the remains of living organisms?
...that on January 17, 2007, the Doomsday Clock of the Bulletin of the Atomic Scientists moved to "5 minutes from midnight" in part because of global climate change?
...that in 1835, Caroline Herschel and Mary Fairfax Somerville became the first women scientists to be elected to the Royal Astronomical Society?
Selected Biography -
James Bryant Conant (March 26, 1893 – February 11, 1978) was an American chemist, a transformative President of Harvard University, and the first U.S. Ambassador to West Germany. Conant obtained a Ph.D. in chemistry from Harvard in 1916.
During World War I, he served in the U.S. Army, where he worked on the development of poison gases, especially Lewisite. He became an assistant professor of chemistry at Harvard University in 1919 and the Sheldon Emery Professor of Organic Chemistry in 1929. He researched the physical structures of natural products, particularly chlorophyll, and he was one of the first to explore the sometimes complex relationship between chemical equilibrium and the reaction rate of chemical processes. He studied the biochemistry of oxyhemoglobin providing insight into the disease methemoglobinemia, helped to explain the structure of chlorophyll, and contributed important insights that underlie modern theories of acid-base chemistry. (Full article...)
Selected anniversaries
- 1633 - Galileo Galilei arrives in Rome for his trial before the Inquisition
- 1672 - Birth of Étienne François Geoffroy, French chemist (d. 1731)
- 1743 - Birth of Joseph Banks, English botanist and naturalist (d. 1820)
- 1787 - Death of Ruđer Bošković, Croatian scientist and diplomat (b. 1711)
- 1805 - Birth of Peter Gustav Lejeune Dirichlet, German mathematician (d. 1859)
- 1880 - Thomas Edison observes the Edison effect
- 1910 - Birth of William Shockley, American physicist and eugenicist, Nobel Laureate (d. 1989)
- 1956 - Death of Jan Łukasiewicz, Polish mathematician (b. 1878)
- 1960 - Nuclear testing: France tests its first atomic bomb
- 1992 - Death of Nikolay Bogolyubov, Russian mathematician (b. 1909)
- 1997 - Death of Mark Krasnosel'skii, Russian–Ukrainian mathematician (b. 1920)
- 2004 - The Harvard–Smithsonian Center for Astrophysics discovers the universe's largest known diamond, white dwarf star BPM 37093
- 2005 - Death of Emilios T. Harlaftis, Greek astrophysicist (b. 1965)
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