Portal:Science
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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, 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.
The history of science spans the majority of the historical record, with the earliest written records of identifiable predecessors to modern science dating to Bronze Age Egypt and Mesopotamia from around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped the Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes, while further advancements, including the introduction of the Hindu–Arabic numeral system, were made during the Golden Age of India. Scientific research deteriorated in these regions after the fall of the Western Roman Empire during the early middle ages (400 to 1000 CE), but in the Medieval renaissances (Carolingian Renaissance, Ottonian Renaissance and the Renaissance of the 12th century) scholarship flourished again. Some Greek manuscripts lost in Western Europe were preserved and expanded upon in the Middle East during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek manuscripts from the dying Byzantine Empire to Western Europe in the Renaissance.
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".
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...)
Featured article -
Featured articles are displayed here, which represent some of the best content on English Wikipedia.-
The blue whale (Balaenoptera musculus) is a marine mammal and a baleen whale. Reaching a maximum confirmed length of 29.9 meters (98 ft) and weighing up to 199 tonnes (196 long tons; 219 short tons), it is the largest animal known ever to have existed. The blue whale's long and slender body can be of various shades of greyish-blue dorsally and somewhat lighter underneath. Four subspecies are recognized: B. m. musculus in the North Atlantic and North Pacific, B. m. intermedia in the Southern Ocean, B. m. brevicauda (the pygmy blue whale) in the Indian Ocean and South Pacific Ocean, and B. m. indica in the Northern Indian Ocean. There is also a population in the waters off Chile that may constitute a fifth subspecies.
In general, blue whale populations migrate between their summer feeding areas near the poles and their winter breeding grounds near the tropics. There is also evidence of year-round residencies, and partial or age/sex-based migration. Blue whales are filter feeders; their diet consists almost exclusively of krill. They are generally solitary or gather in small groups, and have no well-defined social structure other than mother–calf bonds. The fundamental frequency for blue whale vocalizations ranges from 8 to 25 Hz and the production of vocalizations may vary by region, season, behavior, and time of day. Orcas are their only natural predators. (Full article...) -
Achelousaurus ( /əˌkiːloʊˈsɔːrəs, ˌækɪˌloʊəˈsɔːrəs/) is a genus of centrosaurine ceratopsid dinosaur that lived during the Late Cretaceous Period of what is now North America, about 74.2 million years ago. The first fossils of Achelousaurus were collected in Montana in 1987, by a team led by Jack Horner, with more finds made in 1989. In 1994, Achelousaurus horneri was described and named by Scott D. Sampson; the generic name means "Achelous lizard", in reference to the Greek deity Achelous, and the specific name refers to Horner. The genus is known from a few specimens consisting mainly of skull material from individuals, ranging from juveniles to adults.
A large centrosaurine, Achelousaurus supposedly was about 6 m (20 ft) long, with a weight of about 3 t (3.3 short tons). As a ceratopsian, it walked on all fours, had a short tail and a large head with a hooked beak. It had a bony neck-frill at the rear of the skull, which sported a pair of long spikes, which curved towards the outside. Adult Achelousaurus had rough bosses (roundish protuberances) above the eyes and on the snout where other centrosaurines often had horns in the same positions. These bosses were covered by a thick layer of keratin, but their exact shape in life is uncertain. Some researchers hypothesize that the bosses were used in fights, with the animals butting each other's heads, as well as for display. (Full article...) -
Epacris impressa, also known as common heath, is a species of plant in the heath family Ericaceae. It is native to south-eastern Australia (the states of Victoria, Tasmania, South Australia and New South Wales). French botanist Jacques Labillardière collected the species in 1793 and described it in 1805. Four forms have been identified, but no subspecies are recognised. Growing in heathland, shrubland or open forest, it is generally a small shrub around 0.5 to 1 m (1 ft 8 in to 3 ft 3 in) tall, with small stiff leaves. The red, pink or white tube-like flowers appear from late autumn to early spring. Honeyeater birds, particularly the eastern spinebill, feed upon the nectar of the flowers. It regenerates after bushfire by seed or by resprouting.
A highly regarded garden plant, the common heath was first cultivated in England in 1825; over seventy named cultivars have been developed, most of which have now vanished. A pink-flowered form, often referred to as "pink heath", is the floral emblem of the state of Victoria. Epacris impressa has proven a difficult plant to propagate reliably, which has limited its use in horticulture and revegetation. It grows best in well-drained but moist soil in a semishaded position. (Full article...) -
Lisa Marie Nowak (née Caputo; born May 10, 1963) is an American aeronautical engineer and former NASA astronaut and United States Navy officer. Nowak served as naval flight officer and test pilot in the Navy, and was selected by NASA for NASA Astronaut Group 16 in 1996, qualifying as a mission specialist in robotics. She flew in space aboard Space Shuttle Discovery during the STS-121 mission in July 2006, when she was responsible for operating the robotic arms of the shuttle and the International Space Station. In 2007, Nowak was involved in a highly publicized incident of criminal misconduct for which she eventually pled guilty to felony burglary and misdemeanor battery charges, resulting in her demotion from captain to commander, and termination by NASA and the Navy.
Born in Washington, D.C., Nowak graduated from the United States Naval Academy in Annapolis, Maryland, in 1985. She was assigned to VAQ-34 at Naval Air Station Point Mugu, California, where she flew the EA-7L Corsair and ERA-3B Skywarrior. She earned a Master of Science degree in aeronautical engineering and a degree in aeronautical and astronautical engineering from the Naval Postgraduate School in Monterey, California. In 1993 she was selected to attend the U.S. Naval Test Pilot School at Naval Air Station Patuxent River, Maryland. After graduation, she remained at Patuxent River, flying in the F/A-18 Hornet and EA-6B Prowler. During her Navy career she logged over 1,500 hours in more than 30 aircraft and was awarded the Defense Meritorious Service Medal, the Navy Commendation Medal and the Navy Achievement Medal. (Full article...) -
Titan is the largest moon of Saturn and the second-largest in the Solar System, larger than any of the dwarf planets of the Solar System. It is the only moon known to have a dense atmosphere, and is the only known object in space other than Earth on which clear evidence of stable bodies of surface liquid has been found.
Titan is one of the seven gravitationally rounded moons in orbit around Saturn, and the second most distant from Saturn of those seven. Frequently described as a planet-like moon, Titan is 50% larger (in diameter) than Earth's Moon and 80% more massive. It is the second-largest moon in the Solar System after Jupiter's moon Ganymede, and is larger than the planet Mercury, but only 40% as massive. (Full article...) -
The northern voalavo (Voalavo gymnocaudus), also known as the naked-tailed voalavo or simply the voalavo, is a rodent in the family Nesomyidae found in the Northern Highlands of Madagascar. Discovered in 1994 and formally described in 1998, it is the type species of the genus Voalavo; its closest relative is the eastern voalavo of the Central Highlands. DNA sequencing suggests that it may be more closely related to Grandidier's tufted-tailed rat than to other species of the closely related genus Eliurus. The northern voalavo is found at 1,250 to 1,950 m (4,100 to 6,400 ft) above sea level in montane wet and dry forests in the Marojejy and Anjanaharibe-Sud massifs. Nocturnal and solitary, it lives mainly on the ground, but it can climb and probably eats plant matter. Despite having a small range, the species is classified as being of least concern because it lacks obvious threats and much of its range is within protected areas.
The northern voalavo is a small, mouse-like rodent with soft, grey fur that is only slightly darker above than below. The ears are short and rounded. The long tail appears mostly naked and lacks a distinct tuft, which is present in Eliurus. It differs from the eastern voalavo mainly in the values of some measurements. The skull is delicate, with a long, narrow rostrum (front part), narrow interorbital region (between the eyes), and no development of ridges on the braincase. The molars are relatively high-crowned (hypsodont). It has a body mass of 17 to 25.5 g (0.60 to 0.90 oz). (Full article...) -
Acamptonectes is a genus of ophthalmosaurid ichthyosaurs, a type of dolphin-like marine reptiles, that lived during the Early Cretaceous around 130 million years ago. The first specimen, a partial adult skeleton, was discovered in Speeton, England, in 1958, but was not formally described until 2012 by Valentin Fischer and colleagues. They also recognised a partial subadult skeleton belonging to the genus from Cremlingen, Germany, and specimens from other localities in England. The genus contains the single species Acamptonectes densus; the generic name means "rigid swimmer" and the specific name means "compact" or "tightly packed".
The generic name refers to unusual adaptations in the body of Acamptonectes that made its trunk rigid, including tightly fitting bones in the occiput (back and lower part of the skull) and interlocking vertebral centra ("bodies" of the vertebrae), which were likely adaptations that enabled it to swim at high speeds with a tuna-like form of locomotion. Other distinguishing characteristics include an extremely slender snout and unique ridges on the basioccipital bone of the braincase. As an ichthyosaur, Acamptonectes had large eye sockets and a tail fluke. Acamptonectes was similar in morphology to the related but earlier ophthalmosaurines Ophthalmosaurus and Mollesaurus. (Full article...) -
Niobium is a chemical element; it has symbol Nb (formerly columbium, Cb) and atomic number 41. It is a light grey, crystalline, and ductile transition metal. Pure niobium has a Mohs hardness rating similar to pure titanium, and it has similar ductility to iron. Niobium oxidizes in Earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel. Niobium is often found in the minerals pyrochlore and columbite, hence the former name "columbium". Its name comes from Greek mythology: Niobe, daughter of Tantalus, the namesake of tantalum. The name reflects the great similarity between the two elements in their physical and chemical properties, which makes them difficult to distinguish.
English chemist Charles Hatchett reported a new element similar to tantalum in 1801 and named it columbium. In 1809, English chemist William Hyde Wollaston wrongly concluded that tantalum and columbium were identical. German chemist Heinrich Rose determined in 1846 that tantalum ores contain a second element, which he named niobium. In 1864 and 1865, a series of scientific findings clarified that niobium and columbium were the same element (as distinguished from tantalum), and for a century both names were used interchangeably. Niobium was officially adopted as the name of the element in 1949, but the name columbium remains in current use in metallurgy in the United States. (Full article...) -
Telopea truncata, commonly known as the Tasmanian waratah, is a plant in the family Proteaceae. It is endemic to Tasmania where it is found on moist acidic soils at altitudes of 600 to 1200 m (2000–4000 ft). Telopea truncata is a component of alpine eucalypt forest, rainforest and scrub communities. It grows as a multistemmed shrub to a height of 3 metres (10 ft), or occasionally as a small tree to 10 m (35 ft) high, with red flower heads, known as inflorescences, appearing over the Tasmanian summer (November to February) and bearing 10 to 35 individual flowers. Yellow-flowered forms are occasionally seen, but do not form a population distinct from the rest of the species.
Collected by French botanist Jacques Labillardière in 1792–93, Telopea truncata was first scientifically described in 1805. Genetic analysis revealed that the Tasmanian waratah is the most distinctive of the five waratah species. It can be cultivated in temperate climates, requiring soils with good drainage and ample moisture in part-shaded or sunny positions. Several commercially available cultivars that are hybrids of T. truncata with the New South Wales waratah (T. speciosissima) and Gippsland waratah (T. oreades) have been developed. (Full article...) -
Apollo 15 (July 26 – August 7, 1971) was the ninth crewed mission in the United States' Apollo program and the fourth to land on the Moon. It was the first J mission, with a longer stay on the Moon and a greater focus on science than earlier landings. Apollo 15 saw the first use of the Lunar Roving Vehicle.
The mission began on July 26 and ended on August 7, with the lunar surface exploration taking place between July 30 and August 2. Commander David Scott and Lunar Module Pilot James Irwin landed near Hadley Rille and explored the local area using the rover, allowing them to travel further from the lunar module than had been possible on previous missions. They spent 181⁄2 hours on the Moon's surface on four extravehicular activities (EVA), and collected 170 pounds (77 kg) of surface material. (Full article...) -
The Trait du Nord, previously also known as Ardennais du Nord or Ardennais de type Nord, is a breed of heavy draft horse developed and bred in the area of Hainaut in western Belgium and in northeastern France. Originally considered a subtype of the Ardennes, it was recognized as an individual breed with the opening of a studbook in 1903. Developed in the fertile Flemish grasslands, it was bred for size and pulling power for agricultural work. By 1855, the horses bred near Hainaut were considered by some veterinarians to be superior to other Flemish draft breeds. The Trait du Nord was used extensively in mining from the late 19th century through 1920, with lesser use continuing through the 1960s.
The Trait du Nord continued to be used extensively for agriculture through World War II, but after the war this usage, and the breed population, declined significantly as farming became increasingly mechanized. During the mid-20th century, the breed was in demand for the production of horse meat, and due to this was bred to be larger and heavier. In the early 1970s, the market for horse meat began to decline, and the Trait du Nord, like many European draft breeds, was in danger of extinction. It was not until the 1990s that the breed experienced a slight revival through an increased interest in recreational riding and driving. (Full article...) -
"The 1975" is a 2019 song by the English band of the same name from their fourth studio album, Notes on a Conditional Form. It was released on 24 July 2019, and included on the album as the opening track in May 2020. It continues the tradition of the band's albums opening with an eponymous song, but whereas the previous three had a shared set of lyrics sung by Matty Healy, the 2019 song uses different lyrics delivered by the environmental activist Greta Thunberg. She calls for civil disobedience in response to climate change, to reduce greenhouse gas emissions, in a modified version of her speech "Our House Is on Fire" from the 2019 World Economic Forum.
The song was recorded in June 2019. Proceeds went to the grassroots movement Extinction Rebellion and the song's release coincided with measures by the band to reduce their environmental impact. When touring in 2019 and 2020, prior to COVID-19 lockdowns, the band opened their encore with "The 1975". The song received mostly positive reviews from music critics, who praised its emotional impact, the message and the transition on Notes on a Conditional Form from the song into the lead single "People". (Full article...) -
Sally Kristen Ride (May 26, 1951 – July 23, 2012) was an American astronaut and physicist. Born in Los Angeles, she joined NASA in 1978, and in 1983 became the first American woman and the third woman to fly in space, after cosmonauts Valentina Tereshkova in 1963 and Svetlana Savitskaya in 1982. She was the youngest American astronaut to have flown in space, having done so at the age of 32.
Ride was a graduate of Stanford University, where she earned a Bachelor of Science degree in physics and a Bachelor of Arts degree in English literature in 1973, a Master of Science degree in physics in 1975, and a Doctor of Philosophy in physics in 1978 for research on the interaction of X-rays with the interstellar medium. She was selected as a mission specialist astronaut with NASA Astronaut Group 8, the first class of NASA astronauts to include women. After completing her training in 1979, she served as the ground-based capsule communicator (CapCom) for the second and third Space Shuttle flights, and helped develop the Space Shuttle's robotic arm. In June 1983, she flew in space on the Space Shuttle Challenger on the STS-7 mission. The mission deployed two communications satellites and the first Shuttle pallet satellite (SPAS-1). Ride operated the robotic arm to deploy and retrieve SPAS-1. Her second space flight was the STS-41-G mission in 1984, also on board Challenger. She spent a total of more than 343 hours in space. She left NASA in 1987. (Full article...) -
Martin Rundkvist (born 4 April 1972) is a Swedish archaeologist and associate professor at the University of Łódź in Poland. His research focuses on the Bronze, Iron, and Middle Ages of Scandinavia, including significant excavations in the province of Östergötland.
Rundkvist has studied and excavated various sites in Sweden, particularly in the country's south. In 2003 and 2004, he published a three-volume work which doubled as his PhD dissertation, cataloguing the finds from Barshalder, the largest prehistoric cemetery on the Swedish island of Gotland. A subsequent book identified nine possible regional power centres in Östergötland, and attempted to determine where the "Beowulfian mead halls" of the day once stood. Excavating years later at one of these sites, Aska, Rundkvist uncovered the foundations of a large mead hall, and 30 ornate gold figures that might have represented gods or royals. In other works, Rundkvist has excavated a Viking boat grave, and analysed both the placement of deposited artefacts in the landscape and the lifestyles of the Scandinavian élite during the Middle Ages. (Full article...) -
Illustration from William J. Long's School of the Woods (1902), showing an otter teaching her young to swim
The nature fakers controversy was an early 20th-century American literary debate highlighting the conflict between science and sentiment in popular nature writing. The debate involved important American literary, environmental and political figures. Dubbed the "War of the Naturalists" by The New York Times, it revealed seemingly irreconcilable contemporary views of the natural world: while some nature writers of the day argued as to the veracity of their examples of anthropomorphic wild animals, others questioned an animal's ability to adapt, learn, teach, and reason.
The controversy arose from a new literary movement, which followed a growth of interest in the natural world beginning in the late 19th century, and in which the natural world was depicted in a compassionate rather than realistic light. Works such as Ernest Thompson Seton's Wild Animals I Have Known (1898) and William J. Long's School of the Woods (1902) popularized this new genre and emphasized sympathetic and individualistic animal characters. In March 1903, naturalist and writer John Burroughs published an article entitled "Real and Sham Natural History" in The Atlantic Monthly. Lambasting writers such as Seton, Long, and Charles G. D. Roberts for their seemingly fantastical representations of wildlife, he also denounced the booming genre of realistic animal fiction as "yellow journalism of the woods". Burroughs' targets responded in defense of their work in various publications, as did their supporters, and the resulting controversy raged in the public press for nearly six years. (Full article...)
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Credit: Roger McLassus
Rust is the chemical substance formed when iron compounds corrode in the presence of oxygen and water. It is a mixture of iron oxides and hydroxides. Rusting is a common term for corrosion, and usually corrosion of Iron. Iron is found naturally in the ore haematite as iron oxide, and metallic iron tends to return to a similar state when exposed to air, (hydrogen, oxygen, nitrogen, etc.) and water. This corrosion is due to the oxidation reaction when iron metal returns to an energetically favourable state. Energy is given off when rust forms. The process of rusting can be summarized as three basic stages: The formation of iron(II) ions from the metal; the formation of hydroxide ions; and their reaction together, with the addition of oxygen, to create rust.
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Science News
- 24 November 2023 –
- Astronomers at the Telescope Array Project in Utah, United States, observe the second largest cosmic ray ever detected, the so-called Amaterasu particle, with an energy of 244 EeV. (Cosmos Magazine)
- 2 November 2023 –
- Colombian Environment Minister Susana Muhamad announces plans to sterilize 20 of 166 hippopotamuses, descendants of those imported by drug lord Pablo Escobar, and cull some others, citing environmental concerns. (AFP via ABS-CBN News)
- 30 October 2023 –
- In a study published in Nature Geoscience, researchers suggest that solid particulates (predominantly silicate) from the Chicxulub asteroid impact played a dominant role in the radiative forcing leading to the Cretaceous–Paleogene extinction event (impact winter), contrary to the widely accepted theory that sulfur aerosols led to the mass extinction. (AFP via RFI) (Nature)
- 23 October 2023 – 2023 in arthropod paleontology
- A new species of prehistoric millipede named Lauravolsella willemeni is discovered in the Netherlands. (NOS)
General images -
The following are images from various science-related articles on Wikipedia.
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Precession of the perihelion – exaggerated in the case of Mercury, but observed in the case of S2's apsidal precession around Sagittarius A* (from Scientific method) -
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1812 skeletal and muscular reconstruction of Anoplotherium commune by Georges Cuvier based on fossil remains from the Paris Basin (from History of science) -
The French Academy of Sciences was established in 1666. (from Scientific Revolution) -
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Ptolemaic model of the spheres for Venus, Mars, Jupiter, and Saturn. Georg von Peuerbach, Theoricae novae planetarum, 1474. (from Scientific Revolution) -
Model of DNA with David Deutsch, proponent of invariant scientific explanations (2009) (from Scientific method) -
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The Ebers Papyrus (c. 1550 BCE) from ancient Egypt (from History of science) -
Star list with distance information, Uruk (Iraq), 320-150 BCE, the list gives each constellation, the number of stars and the distance information to the next constellation in ells (from History of science) -
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Galileo Galilei (1564–1642). According to Albert Einstein, "All knowledge of reality starts from experience and ends in it. Propositions arrived at by purely logical means are completely empty as regards reality. Because Galileo saw this, and particularly because he drummed it into the scientific world, he is the father of modern physics – indeed, of modern science altogether." (from Scientific method) -
The Royal Society had its origins in Gresham College in the City of London, and was the first scientific society in the world. (from Scientific Revolution) -
In mid-July 1837 Charles Darwin started his "B" notebook on the Transmutation of Species, and on page 36 wrote "I think" above his first evolutionary tree. (from History of science) -
Johannes Kepler (1571–1630). "Kepler shows his keen logical sense in detailing the whole process by which he finally arrived at the true orbit. This is the greatest piece of Retroductive reasoning ever performed." – C. S. Peirce, c. 1896, on Kepler's reasoning through explanatory hypotheses (from Scientific method) -
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Einstein's official portrait after receiving the 1921 Nobel Prize in Physics (from History of science) -
Ibn al-Haytham (965–1039). A polymath, considered by some to be the father of modern scientific methodology, due to his emphasis on experimental data and reproducibility of its results. (from Scientific method) -
Liu Hui's Survey of sea island (from History of science) -
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Aristotle (384–322 BCE). "As regards his method, Aristotle is recognized as the inventor of scientific method because of his refined analysis of logical implications contained in demonstrative discourse, which goes well beyond natural logic and does not owe anything to the ones who philosophized before him." – Riccardo Pozzo (from Scientific method) -
Vesalius's intricately detailed drawings of human dissections in Fabrica helped to overturn the medical theories of Galen. (from Scientific Revolution) -
One of the oldest surviving fragments of Euclid's Elements, found at Oxyrhynchus and dated to c. 100 CE. (from History of science) -
Schematic of the Antikythera mechanism (150–100 BCE). (from History of science) -
The frontispiece of the Vienna Dioscurides, which shows a set of seven famous physicians (from History of science) -
A modern replica of Han dynasty polymath scientist Zhang Heng's seismometer of 132 CE (from History of science) -
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Alessandro Volta demonstrates the first electrical cell to Napoleon in 1801. (from History of science) -
Matteo Ricci (left) and Xu Guangqi (right) in Athanasius Kircher, La Chine ... Illustrée, Amsterdam, 1670 (from Scientific Revolution) -
The scientific method is often represented as an ongoing process. This diagram represents one variant, and there are many others. (from Scientific method) -
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Image of veins from William Harvey's Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus. Harvey demonstrated that blood circulated around the body, rather than being created in the liver. (from Scientific Revolution) -
Francis Bacon was a pivotal figure in establishing the scientific method of investigation. Portrait by Frans Pourbus the Younger (1617). (from Scientific Revolution) -
Isaac Newton's Principia developed the first set of unified scientific laws. (from Scientific Revolution) -
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Title page from The Sceptical Chymist, a foundational text of chemistry, written by Robert Boyle in 1661 (from Scientific Revolution) -
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Ancient India was an early leader in metallurgy, as evidenced by the wrought-iron Pillar of Delhi. (from History of science) -
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Newton's Opticks or a treatise of the reflections, refractions, inflections and colours of light (from Scientific Revolution) -
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An ivory set of Napier's Bones, an early calculating device invented by John Napier (from Scientific Revolution) -
One possible signature of a Higgs boson from a simulated proton–proton collision. It decays almost immediately into two jets of hadrons and two electrons, visible as lines. (from History of science) -
Galileo Galilei, father of modern science. (from History of science) -
Adam Smith wrote The Wealth of Nations, the first modern work of economics (from History of science) -
Diagram from William Gilbert's De Magnete, a pioneering work of experimental science (from Scientific Revolution) -
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Watson and Crick used many aluminium templates like this one, which is the single base Adenine (A), to build a physical model of DNA in 1953. (from History of science) -
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Air pump built by Robert Boyle. Many new instruments were devised in this period, which greatly aided in the expansion of scientific knowledge. (from Scientific Revolution) -
Alfred Wegener in Greenland in the winter of 1912–13. He is most remembered as the originator of continental drift hypothesis by suggesting in 1912 that the continents are slowly drifting around the Earth. (from History of science) -
Portrait of Johannes Kepler, one of the founders and fathers of modern astronomy, the scientific method, natural and modern science. (from Scientific Revolution)
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Clay models of animal livers dating between the nineteenth and eighteenth centuries BCE, found in the royal palace at Mari in what is now Syria (from History of science)
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