In mathematics, the Fibonacci numbers, commonly denoted Fn form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1. That is,
Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS) and JavaScript, it forms a triad of cornerstone technologies for the World Wide Web.
The International Standard Book Number (ISBN) is a numeric commercial book identifier which is intended to be unique. Publishers purchase ISBNs from an affiliate of the International ISBN Agency.
Phosphorus is a chemical element with symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram. With few exceptions, minerals containing phosphorus are in the maximally oxidized state as inorganic phosphate rocks.
A phosphate is a chemical derivative of phosphoric acid. The phosphate ion is an inorganic chemical, the conjugate base that can form many different salts. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Of the various phosphoric acids and phosphates, organic phosphates are important in biochemistry and biogeochemistry, and inorganic phosphates are mined to obtain phosphorus for use in agriculture and industry. At elevated temperatures in the solid state, phosphates can condense to form pyrophosphates.
Sulfuric acid (alternative spelling sulphuric acid), also known as vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula H2SO4. It is a colorless, odorless, and syrupy liquid that is soluble in water, in a reaction that is highly exothermic.
In mathematics, a Taylor series is a representation of a function as an infinite sum of terms that are calculated from the values of the function's derivatives at a single point.
In geometry, the tesseract is the four-dimensional analogue of the cube; the tesseract is to the cube as the cube is to the square. Just as the surface of the cube consists of six square faces, the hypersurface of the tesseract consists of eight cubical cells. The tesseract is one of the six convex regular 4-polytopes.
The Douglas DC-3 is a fixed-wing propeller-driven airliner that revolutionized air transport in the 1930s and 1940s. Its lasting effect on the airline industry and World War II makes it one of the most significant transport aircraft ever produced. It has a cruise speed of 207 mph (333 km/h), capacity of 21 to 32 passengers or 6,000 lbs of cargo and a range of 1,500 mi (2,400 km).
Web colors are colors used in displaying web pages on the World Wide Web, and the methods for describing and specifying those colors. Colors may be specified as an RGB triplet or in hexadecimal format or according to their common English names in some cases. A color tool or other graphics software is often used to generate color values. In some uses, hexadecimal color codes are specified with notation using a leading number sign (#). A color is specified according to the intensity of its red, green and blue components, each represented by eight bits. Thus, there are 24 bits used to specify a web color within the sRGB gamut, and 16,777,216 colors that may be so specified.
The BMW M3 is a high-performance version of the 3 Series, developed by BMW's in-house motorsport division, BMW M GmbH. M3 models have been derived from the corresponding generations of the BMW 3 Series.
2-Methoxyestradiol (2-ME2) is a natural metabolite of estradiol. As an experimental drug candidate, it is being developed under the tradename of Panzem. It prevents the formation of new blood vessels that tumors need in order to grow (angiogenesis), hence it is an angiogenesis inhibitor.
A fraction represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters. A common, vulgar, or simple fraction consists of an integer numerator displayed above a line, and a non-zero integer denominator, displayed below that line.
Numerators and denominators are also used in fractions that are not common, including compound fractions, complex fractions, and mixed numerals.
Call of Duty 4: Modern Warfare is a first-person shooter developed by Infinity Ward and published by Activision. An installment in the Call of Duty series, it was released in November 2007 for the PlayStation 3, Xbox 360, and Microsoft Windows, and was ported to the Wii as Call of Duty: Modern Warfare – Reflex Edition in 2009. The game breaks away from the World War II setting of previous entries in the series and is instead set in modern times. Developed for over two years, the game uses a proprietary game engine.
PlayStation is a gaming brand that consists of four home video game consoles, as well as a media center, an online service, a line of controllers, two handhelds and a phone, as well as multiple magazines. It is created and owned by Sony Interactive Entertainment since December 3, 1994, with the launch of the original PlayStation in Japan.
The version history of the Android mobile operating system began with the public release of the Android beta on November 5, 2007. The first commercial version, Android 1.0, was released on September 23, 2008. Android is continually developed by Google and the Open Handset Alliance, and it has seen a number of updates to its base operating system since the initial release.
The aspect ratio of an image describes the proportional relationship between its width and its height. It is commonly expressed as two numbers separated by a colon, as in 16:9. For an x:y aspect ratio, no matter how big or small the image is, if the width is divided into x units of equal length and the height is measured using this same length unit, the height will be measured to be y units.
The PlayStation 4 (PS4) is an eighth-generation home video game console developed by Sony Interactive Entertainment. Announced as the successor to the PlayStation 3 in February, 2013, it was launched on November 15 in North America, November 29 in Europe, South America and Australia, and on February 22, 2014, in Japan. It competes with Microsoft's Xbox One and Nintendo's Wii U and Switch.
A catechol estrogen is a steroidal estrogen that contains catechol (1,2-dihydroxybenzene) within its structure. The catechol estrogens are endogenous metabolites of estradiol and estrone and include the following compounds:
Toy Story 4 is an upcoming American 3D computer-animated comedy film produced by Pixar Animation Studios for Walt Disney Pictures. It is the fourth installment in the Toy Story series, and the sequel to Toy Story 3 (2010). It is directed by Josh Cooley and written by Stephany Folsom, with previous films' writers John Lasseter, Pete Docter, Andrew Stanton, and Lee Unkrich conceiving the film's story.
