Domain: en.wikipedia.org

AlhazenḤasan Ibn al-HaythamBornc. 965 (c. 354 AH)[1] Basra, IraqDiedc. 1040 (c. 430 AH)[2] (aged around 75)Cairo, EgyptKnown forBook of Optics, Doubts Concerning Ptolemy, Alhazen's problem, Analysis,[3] Catoptrics,[4] Horopter, Moon illusion, experimental science, scientific methodology,[5] visual perception, empirical theory of perception, Animal psychology[6]Scientific careerFieldsOpticsAstronomyMathematicsInfluencesAristotle,[7] Euclid,[8] Ptolemy,[9] Galen, Banū Mūsā, Thābit ibn Qurra, Al-K...

Aerosmith is an American rock band formed in Boston, Massachusetts in 1970.[5] The group consists of Steven Tyler (vocals, guitars, keyboards), Joe Perry (guitar), Tom Hamilton (bass), Joey Kramer (drums) and Brad Whitford (guitar). Their style, which is rooted in blues-based hard rock,[6][7] has come to also incorporate elements of pop rock,[8] heavy metal,[6] and rhythm and blues,[9] and has inspired many subsequent rock artists.[10] They are sometimes referred to as "the Bad Boys from Boston...

Iron Maiden are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris. The band's discography has grown to 39 albums, including 16 studio albums, 12 live albums, four EPs, and seven compilations. Pioneers of the new wave of British heavy metal, Iron Maiden achieved initial success during the early 1980s. After several line-up changes, the band went on to release a series of UK and US platinum and gold albums, including 1982's The Numbe...

The dressThe original The dress pictureDesignerRoman Originals[1]MaterialLace[2] The dress is a photograph that became a viral internet sensation on 26 February 2015, when viewers disagreed over whether the dress pictured was coloured black and royal blue, or white and gold. The phenomenon revealed differences in human colour perception, which have been the subject of ongoing scientific investigations into neuroscience and vision science, with a number of papers published in peer-reviewed scien...

The Great Gatsby is a 1925 novel written by American author F. Scott Fitzgerald that follows a cast of characters living in the fictional towns of West Egg and East Egg on prosperous Long Island in the summer of 1922. The story primarily concerns the young and mysterious millionaire Jay Gatsby and his quixotic passion and obsession with the beautiful former debutante Daisy Buchanan. Considered to be Fitzgerald's magnum opus, The Great Gatsby explores themes of decadence, idealism, resistance to...

This article is about followers of William Miller. For the mineral, see Millerite. The Millerites were the followers of the teachings of William Miller, who in 1833 first shared publicly his belief that the Second Advent of Jesus Christ would occur in roughly the year 1843–1844. Coming during the Second Great Awakening, his beliefs were taken as predictions, spread widely, and were believed by many, leading to the Great Disappointment. Origins[edit] Miller was a prosperous farmer, a Baptist lay...

In geometry, an icosahedron ( or [1]) is a polyhedron with 20 faces. The name comes from Ancient Greek εἴκοσι (eíkosi), meaning 'twenty', and ἕδρα (hédra), meaning 'seat'. The plural can be either "icosahedra" () or "icosahedrons". There are infinitely many non-similar shapes of icosahedra, some of them being more symmetrical than others. The best known is the (convex, non-stellated) regular icosahedron—one of the Platonic solids—whose faces are 20 equilateral triangles. Regular icosahedra[edit...

This is a list of invasions ordered by date. An invasion is a military offensive in which sizable number of combatants of one geopolitical entity aggressively enter territory controlled by another such entity, generally with the objectives of establishing or re-establishing control, retaliation for real or perceived actions, liberation of previously lost territory, forcing the partition of a country, gaining concessions or access to natural resources or strategic positions, effecting a change i...

Scanning electron micrograph of HIV-1 (in green) budding from cultured lymphocyte. Multiple round bumps on cell surface represent sites of assembly and budding of virions. Bugchasing, also known in slang as charging, is the practice, typically among gay men or men who have sex with men, of pursuing sexual activity with HIV-positive individuals in order to contract HIV. Individuals engaged in this activity are referred to as bugchasers. It is a form of self-harm. Bugchasers seek sexual partners ...

Social learning theory is a theory of learning process and social behavior which proposes that new behaviors can be acquired by observing and imitating others.[1] It states that learning is a cognitive process that takes place in a social context and can occur purely through observation or direct instruction, even in the absence of motor reproduction or direct reinforcement.[2] In addition to the observation of behavior, learning also occurs through the observation of rewards and punishments, a...