The molecular formula C7H7NO (molar mass: 121.14 g/mol) may refer to:
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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.
The number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, and is spelled out as "pi". It is also referred to as Archimedes' constant.
A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, 1 × 5 or 5 × 1, involve 5 itself. However, 4 is composite because it is a product in which both numbers are smaller than 4. Primes are central in number theory because of the fundamental theorem of arithmetic: every natural number greater than 1 is either a prime itself or can be factorized as a product of primes that is unique up to their order.
Python is an interpreted, high-level and general-purpose programming language. Python's design philosophy emphasizes code readability with its notable use of significant whitespace. Its language constructs and object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects.
In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.
Tupac Amaru Shakur, better known by his stage name 2Pac and by his alias Makaveli, was an American rapper and actor. He is considered by many to be one of the most influential rappers of all time. Much of Shakur's work has been noted for addressing contemporary social issues that plagued inner cities, and he is considered a symbol of resistance and activism against inequality.
Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. In 2017, Firefox began incorporating new technology under the code name Quantum to promote parallelism and a more intuitive user interface. Firefox is officially available for Windows 7 or newer, macOS, and Linux. Its unofficial ports are available for various Unix and Unix-like operating systems including FreeBSD, OpenBSD, NetBSD, illumos, and Solaris Unix. Firefox is also available for Android and iOS. However, the iOS version uses the WebKit layout engine instead of Gecko due to platform requirements, as with all other iOS web browsers. An optimized version of Firefox is also available on the Amazon Fire TV, as one of the two main browsers available with Amazon's Silk Browser.
Windows 7 is an operating system that was produced by Microsoft and released as part of the Windows NT family of operating systems. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009. It is the successor to Windows Vista, released nearly three years earlier, and it was Microsoft's operating system for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs until it was succeeded by Windows 8 on October 26, 2012. Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time. The last supported version of Windows based on this operating system was released on July 1, 2011, entitled Windows Embedded POSReady 7. On January 12, 2016, Microsoft ended support for Internet Explorer versions prior to Internet Explorer 11 on Windows 7. Extended support ended on January 14, 2020, over ten years after the release of Windows 7, after which the operating system ceased receiving further support or security updates to most users.
The Sicilian Defence is a chess opening that begins with the following moves:
The Group of Seven (G7) is an intergovernmental organization consisting of Canada, France, Germany, Italy, Japan, the United Kingdom and the United States. The heads of government of the member states, as well as the representatives of the European Union, meet at the annual G7 Summit.
Kevin Wayne Durant, also known simply by his initals KD, is an American professional basketball player for the Brooklyn Nets of the National Basketball Association (NBA). He played one season of college basketball for the University of Texas, and was selected as the second overall pick by the Seattle SuperSonics in the 2007 NBA draft. He played nine seasons with the franchise, which became the Oklahoma City Thunder in 2008, before signing with the Golden State Warriors in 2016, winning back-to-back championships in 2017 and 2018.
Sons of Anarchy is an American action crime drama television series created by Kurt Sutter that aired from 2008 to 2014. It follows the lives of a close-knit outlaw motorcycle club operating in Charming, a fictional town in California's Central Valley. The show stars Charlie Hunnam as Jackson "Jax" Teller, who is initially the vice president and subsequently the president of the club. After discovering a manifesto written by his late father, John, who previously led the MC, he soon begins to question the club, himself, and his relationships. Love, brotherhood, loyalty, betrayal, and redemption are consistent themes throughout the show.
iPad is a line of tablet computers designed, developed and marketed by Apple Inc., which run the iOS and iPadOS mobile operating systems. The first iPad was released on April 3, 2010; the most recent iPad models are the eighth-generation iPad, released on September 18, 2020; the fifth-generation iPad mini, released on March 18, 2019; the fourth-generation iPad Air, released on October 23, 2020; and the second-generation 11-inch (280 mm) and fourth-generation 12.9-inch (330 mm) iPad Pro, released on March 25, 2020.
Abel Makkonen Tesfaye, known professionally as the Weeknd, is a Canadian singer, songwriter, and record producer. Noted for his versatility in vocal style, music production, and eccentric presentation, The Weeknd is often cited as an influence to contemporary music, as well as by other artists.
Jamie Richard Vardy is an English professional footballer who plays as a striker for Premier League club Leicester City and the England national team.
Orange Is the New Black is an American comedy-drama streaming television series created by Jenji Kohan for Netflix. The series is based on Piper Kerman's memoir, Orange Is the New Black: My Year in a Women's Prison (2010), about her experiences at FCI Danbury, a minimum-security federal prison. Produced by Tilted Productions in association with Lionsgate Television, Orange Is the New Black premiered on Netflix on July 11, 2013. In February 2016, the series was renewed for a fifth, sixth, and seventh season. Its seventh and final season was released on July 26, 2019.
Baker Reagan Mayfield is an American football quarterback for the Cleveland Browns of the National Football League (NFL). Mayfield began his college football career as a walk-on player for the Texas Tech Red Raiders. Mayfield transferred from Texas Tech to play for the Sooners of Oklahoma following supposed scholarship issues and a lack of communication with coaches. After sitting out the 2014 season due to NCAA transfer rules, Mayfield won the starting quarterback job in 2015. He won several awards for his performance as a senior in 2017, including the Heisman Trophy, Maxwell Award, Walter Camp Award, and unanimous All-America recognition.
Got7 is a South Korean boy band formed by JYP Entertainment. The group is composed of seven members: JB, Mark, Jackson, Jinyoung, Youngjae, BamBam, and Yugyeom. Got7 debuted in January 2014 with the release of their first EP Got It?, which peaked at number two on the Gaon Album Chart and number one on Billboard's World Albums Chart. The group gained attention also for their live performances, which often includes elements of martial arts tricking and street dancing.