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English Wikipedia references for Purdue.edu 1-50 of 1802
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| Axiom of choice In mathematics, the axiom of choice, or AC, is an axiom of set theory. Informally put, the axiom of choice says that given any collection of bins, each containing at least one object, it is possible to make a selection of exactly one object from each bin, even if there are infinitely many bins and there is no "rule" for which object to pick from each. The axiom of choice is not required if the number of bins is finite or if such a selection "rule" is available. Axiom_of_choice | |
| Acacia Acacia () is a genus of shrubs and trees belonging to the subfamily Mimosoideae of the family Fabaceae, first described in Africa by the Swedish botanist Carolus Linnaeus in 1773. The plants tend to be thorny and pod-bearing. The name derives from ακις (akis) which is Greek for a sharp point, due to the thorns in the type-species Acacia nilotica ("Nile Acacia") from Egypt. Acacias are also known as thorntrees or wattles, including the yellow-fever acacia and umbrella acacias. Acacia | |
| Antibiotic In common usage, an antibiotic is a substance or compound (also called chemotherapeutic agent) that kills or inhibits the growth of bacteria.Antibiotics belong to the group of antimicrobial compounds used to treat infections caused by micro-organisms, including fungi and protozoa. Antibiotic | |
| Apple (fruit) Talk:Apple_(fruit) | |
| Antidepressant An antidepressant is a psychiatric medication used to alleviate mood disorders, such as major depression and dysthymia. Drugs including the monoamine oxidase inhibitors (MAOIs), tricyclic antidepressants (TCAs), tetracyclic antidepressants (TeCAs), selective serotonin reuptake inhibitors (SSRIs), and serotonin-norepinephrine reuptake inhibitors (SNRIs) are most commonly associated with the term. Antidepressant | |
| American Quarter Horse American_Quarter_Horse | |
| Automated theorem proving Automated theorem proving (ATP) or automated deduction, currently the most well-developed subfield of automated reasoning (AR), is the proving of mathematical theorems by a computer program. Automated_theorem_proving | |
| Beryllium Beryllium () is the chemical element with the symbol Be and atomic number 4. A bivalent element, beryllium is found naturally only combined with other elements in minerals. Notable gemstones which contain beryllium include Beryl (aquamarines and emeralds) and Chrysoberyl (Alexandrite and Cat's eye). Beryllium | |
| Brazil Brazil | |
| Bass guitar Talk:Bass_guitar | |
| Boiling point The boiling point of an element or a substance is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid. atmospheric pressure. A liquid in a high pressure environment has a higher boiling point than when the liquid is at atmospheric pressure. In other words, the boiling point of liquids varies with and depends upon the surrounding environmental pressure. Boiling_point | |
| Black people The term black people usually refers to a racial group of humans with a dark brown skin color, but it has also been used to categorise a number of diverse populations into one common group. Some definitions of the term include only people of relatively recent Sub Saharan African descent (see African diaspora). Black_people | |
| Concrete Concrete is a construction material composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate such as gravel, limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures. The word concrete comes from the Latin word "concretus" (meaning compact or condensed), the past participle of "concresco", from "com-" (together) and "cresco" (to grow). Concrete | |
| Coffea Coffea | |
| CamelCase CamelCase (also spelled "camel case") or medial capitals is the practice of writing compound words or phrases in which the elements are joined without spaces and are capitalized within the compound—as in LaBelle, BackColor, MacGyver, or iPod. The name comes from the uppercase "bumps" in the middle of the compound word, suggestive of the humps of a camel. The practice is known by many other names. CamelCase | |
| Coyote The coyote () (Canis latrans), also known as the prairie wolf, is a species of canid found throughout North and Central America, ranging from Panama in the south, north through Mexico, the United States and Canada. It occurs as far north as Alaska and all but the northernmost portions of Canada. Coyote | |
| Caravaggio Michelangelo Merisi da Caravaggio, (29 September 1571Italian artist active in Rome, Naples, Malta and Sicily between 1593 and 1610. He was the first great representative of the Baroque school of painting, noted for his intensely emotional canvases and dramatic use of lighting. Caravaggio | |
| Distillation Distillation is a method of separating mixtures based on differences in their volatilities in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction. Distillation | |
| Erdős number Erdős number (), honouring the late Hungarian mathematician Paul Erdős, is a way of describing the "collaborative distance" between a person and Erdős, It was created by friends as a humorous tribute to the enormous output of Erdős, one of the most prolific modern writers of mathematical papers, and has become well-known in scientific circles as a tongue-in-cheek measurement of mathematical prominence. Erdős_number | |
| Exabyte An exabyte (derived from the SI prefix exa-) is a unit of information or computer storage equal to one quintillion bytes (short scale). It is commonly abbreviated EB. When used with byte multiples, the unit indicates a power of 1000 1 EB = 1,000,000,000,000,000,000 B = 1018 bytes Exabyte | |
| Ethanol Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatile, flammable, colorless liquid. It is a psychoactive drug, best known as the type of alcohol found in alcoholic beverages and in modern thermometers. Ethanol is one of the oldest recreational drugs. Ethanol | |
| Factorial Factorial | |
| F-117 Nighthawk F-117_Nighthawk | |
| Gallium Gallium () is a chemical element that has the symbol Ga and atomic number 31. Elemental gallium does not occur in nature, but as the Ga (III) salt, in trace amounts in bauxite and zinc ores. A soft silvery metallic poor metal, elemental gallium is a brittle solid at low temperatures. Gallium | |
| Gilles Deleuze Gilles Deleuze (), (18 January 1925French philosopher of the late 20th century. From the early 1960s until his death, Deleuze wrote many influential works on philosophy, literature, film, and fine art. His most popular books were the two volumes of Capitalism and Schizophrenia:Anti-Oedipus (1972) and A Thousand Plateaus (1980), both co-written with Félix Guattari. Gilles_Deleuze | |
| Glass Talk:Glass | |
| Hydrogen Hydrogen () is the chemical element with atomic number 1. It is represented by the symbol H. At standard temperature and pressure, hydrogen is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas with the molecular formula H2. With an atomic weight of , hydrogen is the lightest element.Hydrogen is the most abundant chemical element, constituting roughly 75% of the universe's elemental mass. Hydrogen | |
| IP address Internet Protocol (IP) address is a numerical identification and logical address that is assigned to devices participating in a computer network utilizing the Internet Protocol for communication between its nodes. Although IP addresses are stored as binary numbers, they are usually displayed in human-readable notations, such as 208.77.188.166 (for IPv4), and 2001IPv6). IP_address | |
| Jürgen Habermas Jürgen Habermas (; born June 18, 1929) is a German philosopher and sociologist in the tradition of critical theory and American pragmatism. He is perhaps best known for his work on the concept of the public sphere, the topic (and title) of his first book. His work focused on the foundations of social theory and epistemology, the analysis of advanced capitalistic societies and democracy, the rule of law in a critical social-evolutionary context, and contemporary politics—particularly German politics. Jürgen_Habermas | |
| Kermit the Frog Talk:Kermit_the_Frog | |
| Kumquat Kumquat | |
| Kiwifruit The kiwifruit is the edible berry of a cultivar group of the woody vine Actinidia deliciosa and hybrids between this and other species in the genus Actinidia. The Actinidia is native to South of China.The most common cultivars of kiwifruit are oval, about the size of a large hen's egg (5 Kiwifruit | |
| Larry Sanger Lawrence Mark "Larry" Sanger (born July 16, 1968 Larry_Sanger | |
| Letter (message) letter is a written message from one person to another. The role of letters in communication has changed significantly since the 19th century. Historically, letters (in paper form) were the only reliable means of communication between two persons in different locations.As communication technology has diversified, posted letters have become less important as a routine form of communication; they however still remain but in a modified form. Letter_(message) | |
| Light-emitting diode A light-emitting diode (LED) (, or just ), is an electronic light source. The LED was first invented in Russia in the 1920s, and introduced in America as a practical electronic component in 1962. Oleg Vladimirovich Losev was a radio technician who noticed that diodes used in radio receivers emitted light when current was passed through them. In 1927, he published details in a Russian journal of the first ever LED. Light-emitting_diode | |
| Media bias Media bias refers to the real and perceived bias of journalists and news producers within the mass media, in the selection of which events and stories are reported and how they are covered. The term "media bias" usually implies a pervasive or widespread bias contravening the standards of journalism, rather than the perspective of an individual journalist or article. The direction and degree of media bias in various countries is widely disputed, although its causes are both practical and theoretical. Media_bias | |
| Maurice Merleau-Ponty Maurice Merleau-Ponty ( in French; March 14, 1908 – May 3, 1961) was a French phenomenological philosopher, strongly influenced by Edmund Husserl and Martin Heidegger in addition to being closely associated with Jean-Paul Sartre and Simone de Beauvoir. At the core of Merleau-Ponty's philosophy is a sustained argument for the foundational role that perception plays in understanding the world as well as engaging with the world. Maurice_Merleau-Ponty | |
| Mach number Mach number ( or ) (generally , sometimes or ) is the speed of an object moving through air, or any fluid substance, divided by the speed of sound as it is in that substance. It is commonly used to represent an object's (such as an aircraft or missile) speed, when it is travelling at (or at multiples of) the speed of sound. where is the Mach number is the speed of the source (the object relative to the medium) and is the speed of sound in the medium Mach_number | |
| Neil Armstrong Neil Alden Armstrong (born August 5, 1930) is an American aviator and a former astronaut, test pilot, university professor, and United States Naval Aviator. He was the first person to set foot on the Moon. His first spaceflight was aboard Gemini 8 in 1966, for which he was the command pilot. Neil_Armstrong | |
| Nanomedicine Nanomedicine is the medical application of nanotechnology. The approaches to nanomedicine range from the medical use of nanomaterials, to nanoelectronic biosensors, and even possible future applications of molecular nanotechnology. Current problems for nanomedicine involve understanding the issues related to toxicity and environmental impact of nanoscale materials.Nanomedicine research is directly funded, with the US National Institutes of Health in 2005 funding a five-year plan to set up four nanomedicine centers. Nanomedicine | |
| Oxygen Oxygen (, from the Greek roots ὀξύς (oxys) (acid, literally "sharp," from the taste of acids) and -γενής (-genēs) (producer, literally begetter) is the element with atomic number 8 and represented by the symbol O. It is a member of the chalcogen group on the periodic table, and is a highly reactive nonmetallic period 2 element that readily forms compounds (notably oxides) with almost all other elements. Oxygen | |
| Ozone Ozone or trioxygen (O3) is a triatomic molecule, consisting of three oxygen atoms. It is an allotrope of oxygen that is much less stable than the diatomic O2. Ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals. The ozone layer in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface. It is present in low concentrations throughout the Earth's atmosphere. It has many industrial and consumer applications. Ozone | |
| Ostwald process Ostwald process is a chemical process for producing nitric acid, which was developed by Wilhelm Ostwald (patented 1902). It is a mainstay of the modern chemical industry. Historically and practically it is closely associated with the Haber process, which provides the requisite raw material, ammonia. Ostwald_process | |
| Potato Potato | |
| Pi Pi | |
| Purdue University Purdue University, located in West Lafayette, Indiana, U.S., is the flagship university of the six campuses within the Purdue University System. Purdue currently ranks 9th among America's Best Undergraduate Engineering Programs according to U.S. News & World Report. Purdue_University | |
| Protein kinase protein kinase is a kinase enzyme that modifies other proteins by chemically adding phosphate groups to them (phosphorylation). Phosphorylation usually results in a functional change of the target protein (substrate) by changing enzyme activity, cellular location, or association with other proteins. Protein_kinase | |
| Pessimism Pessimism, from the Latin pessimus (worst), is Value judgments may vary dramatically between individuals, even when judgments of fact are undisputed. The most common example of this phenomenon is the "Is the glass half empty or half full?" situation. The degree in which situations like these are evaluated as something good or something bad can be described in terms of one's optimism or pessimism respectively. Pessimism | |
| Pleistocene Talk:Pleistocene | |
| Rube Goldberg Reuben Garret Lucius Goldberg (July 4th, 1883 – December 7th, 1970) was an American cartoonist, sculptor, author, engineer, and inventor who received a 1948 Pulitzer Prize for his political cartooning. He is best known for his series of popular cartoons depicting Rube Goldberg machines, complex devices that perform simple tasks in indirect, convoluted ways. Rube_Goldberg |
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