Engineering Engineering is the discipline, art and profession of acquiring and applying technical, scientific and mathematical knowledge to design and implement materials, structures, machines, devices, systems, and processes that safely realize a desired objective or inventions. The American Engineers' Council for Professional Development (ECPD, the predecessor of ABET) has defined engineering as follows “ Engineering
Easter Easter (, Pascha) is the most important annual religious feast in the Christian liturgical year. According to Christian scripture, Jesus was resurrected from the dead on the third day from his crucifixion. Christians celebrate this resurrection on Easter Day or Easter Sunday (also Resurrection Day or Resurrection Sunday), two days after Good Friday and three days after Maundy Thursday. Easter
Electrical telegraph electrical telegraph is a telegraph that uses electric signals. The electromagnetic telegraph is a device for human-to-human transmission of coded text messages over wire. Electrical_telegraph
Extraterrestrial life Extraterrestrial life is defined as life which does not originate from planet Earth. It is the subject of astrobiology and its existence remains hypothetical since to date no credible evidence of extraterrestrial life has been discovered which has been generally accepted by the mainstream scientific community. Extraterrestrial_life
E. E. Cummings Edward Estlin Cummings (October 14, 1894 September 3, 1962), popularly known as E., with the abbreviated form of his name often written by others in all lowercase letters as e. e. cummings, was an American poet, painter, essayist, author, and playwright. His body of work encompasses approximately 2,900 poems, an autobiographical novel, four plays and several essays, as well as numerous drawings and paintings. He is remembered as a preeminent voice of 20th century poetry, as well as one of the most popular. E._E._Cummings
Existentialism Circumspectly, Existentialism is a term that has been applied to the work of a number of nineteenth and twentieth century philosophers who, despite profound doctrinal differences, took the human subject — not merely the thinking subject, but the acting, feeling, living human individual and his or her conditions of existence Existentialism
Ernst Haeckel Ernst Heinrich Philipp August Haeckel (February 16, 1834 – August 9, 1919), von Haeckel, was an eminent German biologist, naturalist, philosopher, physician, professor and artist who discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms, and coined many terms in biology, including phylum, phylogeny, ecology and the kingdom Protista. Ernst_Haeckel
Eugenics Eugenics is "the study of, or belief in, the possibility of improving the qualities of the human species or a human population by such means as discouraging reproduction by persons having genetic defects or presumed to have inheritable undesirable traits (negative eugenics) or encouraging reproduction by persons presumed to have inheritable desirable traits (positive eugenics)." Eugenics
Extrasolar planet An extrasolar planet, or exoplanet, is a planet beyond our Solar System, orbiting a star other than our Sun. , 353 exoplanets are listed in the Extrasolar Planets Encyclopaedia. The vast majority have been detected through radial velocity observations and other indirect methods rather than actual imaging. Extrasolar_planet
Emma Goldman Emma Goldman (June 27, 1869 – May 14, 1940) was an anarchist known for her political activism, writing and speeches. She played a pivotal role in the development of anarchist political philosophy in North America and Europe in the first half of the twentieth century.Born in Kovno in the Russian Empire (now Kaunas in Lithuania), Goldman emigrated to the US in 1885 and lived in New York City, where she joined the burgeoning anarchist movement. Emma_Goldman
Eclipse eclipse is an astronomical event that occurs when one celestial object moves into the shadow of another. The term is derived from the ancient Greek noun (''''' Solar System, it forms a type of syzygy—gravitational system along a straight line. The term eclipse is most often used to describe either a solar eclipse, when the Moon's shadow crosses the Earth's surface, or a lunar eclipse, when the Moon moves into the shadow of Earth. However, it can also refer to such events beyond the Ea Eclipse
Endoplasmic reticulum The endoplasmic reticulum (ER) is a eukaryotic organelle that forms an interconnected network of tubules, vesicles, and cisternae within cells. The lacey membranes of the endoplasmic reticulum were first seen by Keith R. Porter, Albert Claude, and Ernest F. Endoplasmic_reticulum
Entropy Entropy is a concept applied across physics, information theory, mathematics and other branches of science and engineering. The following definition is shared across all these fields Entropy
Ethnology Ethnology (from the Greek 'ethnos meaning "habit, custom, convention") is the branch of anthropology that compares and analyzes the origins, distribution, technology, religion, language, and social structure of the ethnic, racial, and/or national divisions of humanity. Ethnology
Estimator statistics, an estimator is a statistic (a function of the observable sample data) that is used to estimate an unknown population parameter (which is called the estimand); an estimate is the result from the actual application of the function to a particular sample of data. Many different estimators are possible for any given parameter. Some criterion is used to choose between the estimators, although it is often the case that a criterion cannot be used to clearly pick one estimator over another. Estimator
Environmental movement in the United States United States today, the organized environmental movement is represented by a wide range of organizations sometimes called non-governmental organizations or NGOs. These organizations exist on local, national, and international scales. Environmental NGOs vary widely in political views and in the amount they seek to influence the environmental policy of the United States and other governments. Environmental_movement_in_the_United_States
ELIZA effect ELIZA effect, in computer science, is the tendency to unconsciously assume computer behaviors are analogous to human behaviors. In its specific form, the ELIZA effect refers only to "the susceptibility of people to read far more understanding than is warranted into strings of symbols determinate nature of output produced by the system. From a psychological standpoint, the ELIZA effect is the result of a subtle cognitive dissonance between the user's awa ELIZA_effect
E. O. Wilson Edward Osborne Wilson (born June 10, 1929) is an American biologist, researcher (sociobiology, biodiversity), theorist (consilience, biophilia), naturalist (conservationism) and author. His biological specialty is myrmecology, a branch of entomology.He is a two-time winner of the Pulitzer Prize for General Non-Fiction, Wilson is known for his career as a scientist, his advocacy for environmentalism, and his secular-humanist ideas pertaining to religious and ethical matters. E._O._Wilson
Educational psychology Educational psychology is the study of how humans learn in educational settings, the effectiveness of educational interventions, the psychology of teaching, and the social psychology of schools as organizations. Educational psychology is concerned with how students learn and develop, often focusing on subgroups such as gifted children and those subject to specific disabilities. Educational_psychology
Pre-Islamic period of Afghanistan Archaeological exploration of the Pre-Islamic period of Afghanistan began in Afghanistan in earnest after World War II and proceeded until the Soviet invasion of Afghanistan disrupted it in December 1979.Louis Dupree, the University of Pennsylvania, the Smithsonian Institution and others suggests that humans were living in ancient Afghanistan at least 50,000 years ago, and that farming communities of the country were among the earliest in the world. Pre-Islamic_period_of_Afghanistan
Fullerene "C60" and "C-60" redirect here. For other uses, see C60 (disambiguation). Fullerene
Frank Zappa Frank Vincent Zappa (December 21, 1940 – December 4, 1993) was an American composer, electric guitarist, record producer and film director. In a career spanning more than 30rock, jazz, electronic, orchestral, and musique concrète works. He also directed feature-length films and music videos, and designed album covers. Zappa produced almost all of the more than 60Mothers of Invention and as a solo artist. Frank_Zappa
Fair use Fair use is a doctrine in United States copyright law that allows limited use of copyrighted material without requiring permission from the rights holders, such as use for scholarship or review. It provides for the legal, non-licensed citation or incorporation of copyrighted material in another author's work under a four-factor balancing test. Fair_use
French fries French fries (North American English, sometimes capitalized), chips (English), fries, or french-fried potatoes (formal) are thin strips of potato that have been deep-fried. They are popular in many countries and go by many names in various languages. A distinction is sometimes made between fries and chips. French_fries
Political freedom Political freedom is the absence of interference with the sovereignty of an individual by the use of coercion or aggression, a definition which is also known as negative liberty. Political freedom can also be described as having the power and resources to act to fulfill one's own potential, as in the definition of positive liberty. Political_freedom
Freeman Dyson Freeman John Dyson FRS (born December 15, 1923) is a British theoretical physicist and mathematician, famous for his work in quantum field theory, solid-state physics, and nuclear engineering. Dyson is a member of the Board of Sponsors of The Bulletin of the Atomic Scientists. Dyson lives in Princeton, New Jersey, where he has been for over fifty years. Freeman_Dyson
Fermi paradox The Fermi paradox is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations and the lack of evidence for, or contact with, such civilizations. Fermi_paradox
Fundamentalism Fundamentalism refers to a belief in, and strict adherence to a set of basic principles (often religious in nature), sometimes as a reaction to perceived doctrinal compromises with modern social and political life.The term fundamentalism was originally coined to describe a narrowly defined set of beliefs that developed into a movement within the Protestant community of the United States in the early part of the 20th century, and that had its roots in the Fundamentalist-Modernist Controversy of that time. Fundamentalism
Fred Singer Siegfried (Fred) Singer (born 27 September 1924 in Vienna) is an American atmospheric physicist. Singer is Professor Emeritus of environmental science at the University of Virginia, specializing in planetary science, global warming, ozone depletion, and other global environmental issues. Fred_Singer
Game theory Game theory is a branch of applied mathematics that is used in the social sciences (most notably economics), biology, engineering, political science, international relations, computer science, and philosophy. Game theory attempts to mathematically capture behavior in strategic situations, in which an individual's success in making choices depends on the choices of others. Game_theory
History of geometry Geometry (Greek γεωμετρία; geo = earth, metria = measure) arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers. Classic geometry was focused in compass and straightedge constructions. As they are the composition of five elemental constructions over a set of elements, as an algebra over an axiomatic system, the barrier between algebra and geometry began to fade out. History_of_geometry
George H. W. Bush George Herbert Walker Bush (born June 12, 1924) served as the 41st President of the United States from 1989 to 1993. Bush held a variety of political positions prior to his presidency, including Vice President of the United States in the administration of Ronald Reagan (1981–1989) and Director of Central Intelligence (DCI) under Gerald R. George_H._W._Bush
Greek mythology Greek mythology is the body of myths and legends belonging to the ancient Greeks concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece. Modern scholars refer to the myths and study them in an attempt to throw light on the religious and political institutions of Ancient Greece, on the Ancient Greek civilization, and to gain Greek_mythology
Galaxy formation and evolution The study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies. Galaxy_formation_and_evolution
General relativity General relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics. It unifies special relativity and Newton's law of universal gravitation, and describes gravity as a geometric property of space and time, or spacetime. General_relativity
Guglielmo Marconi Marchese Guglielmo Marconi (; 25 April 1874 – 20 July 1937) was an Italian inventor, best known for his development of a radiotelegraph system, which served as the foundation for the establishment of numerous affiliated companies worldwide. He shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun, "in recognition of their contributions to the development of wireless telegraphy". Guglielmo_Marconi
Germanium Germanium () is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Germanium has five naturally occurring isotopes ranging in atomic mass number from 70 to 76. It forms a large number of organometallic compounds, including tetraethylgermane and isobutylgermane. Germanium
Genetics Genetics (from Ancient Greek ''biology, is the science of heredity and variation in living organisms. The fact that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. Genetics
Gregorian calendar The Gregorian calendar is the internationally accepted civil calendar. It was first proposed by the Calabrian doctor Aloysius Lilius, and decreed by Pope Gregory XIII, after whom it was named, on 24 February 1582 by the papal bull Inter gravissimas.It is a reform of the Julian calendar. Gregorian_calendar
Geographic information system A geographic information system (GIS), or geographical information system, captures, stores, analyzes, manages, and presents data that is linked to location. Technically, GIS is geographic information systems which includes mapping software and its application with remote sensing, land surveying, aerial photography, mathematics, photogrammetry, geography, and tools that can be implemented with GIS software. Geographic_information_system
Grape A grape is the non-climacteric fruit, botanically a true berry, that grows on the perennial and deciduous woody vines of the genus Vitis. Grapes can be eaten raw or used for making jam, juice, jelly, vinegar, wine, grape seed extracts, raisins, and grape seed oil. Grapes are also used in some kinds of candy. Grape
Galilean moons The Galilean moons are the four moons of Jupiter discovered by Galileo Galilei on January 7, 1610. They are the largest of the many moons of Jupiter and derive their names from the lovers of Zeus (the Greek equivalent of the Roman god Jupiter)Io, Europa, Ganymede and Callisto. Ganymede, Europa and Io participate in a 1orbital resonance. They are among the most massive objects in the Solar System outside the Sun and the eight planets, with a radius larger than any of the dwarf planets. Galilean_moons
Galaxy A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. The name is from the Greek root galaxias Milky Way galaxy. Galaxy
Glass Glass generally refers to hard, brittle, transparent material, such as those used for windows, many bottles, or eyewear. Examples of such materials include, but are not limited to, soda-lime glass, borosilicate glass, acrylic glass, sugar glass, isinglass (Muscovy-glass), or aluminium oxynitride. In the technical sense, glass is an inorganic product of fusion which has been cooled through the glass transition to a rigid condition without crystallizing. Many glasses contain silica as their main com Glass