The Northrop B-2 Spirit, also known as the Stealth Bomber, is an American heavy strategic bomber, featuring low-observable stealth technology designed to penetrate dense anti-aircraft defenses. A subsonic flying wing with a crew of two, the plane was designed by Northrop as the prime contractor, with Boeing, Hughes, and Vought as principal subcontractors, and was produced from 1987 to 2000. The bomber can drop conventional and thermonuclear weapons, such as up to eighty 500-pound class (230 kg) Mk 82 JDAM GPS-guided bombs, or sixteen 2,400-pound (1,100 kg) B83 nuclear bombs. The B-2 is the only acknowledged in-service aircraft that can carry large air-to-surface standoff weapons in a stealth configuration.
In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn . The sequence commonly starts from 0 and 1, although some authors start the sequence from 1 and 1 or sometimes from 1 and 2. Starting from 0 and 1, the sequence begins
In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is The parameter is the mean or expectation of the distribution, while the parameter is the variance. The standard deviation of the distribution is . A random variable with a Gaussian distribution is said to be normally distributed, and is called a normal deviate.
The number π is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although fractions such as are commonly used to approximate it. Consequently, its decimal representation never ends, nor enters a permanently repeating pattern. It is a transcendental number, meaning that it cannot be a solution of an equation involving only finite sums, products, powers, and integers. The transcendence of π implies that it is impossible to solve the ancient challenge of squaring the circle with a compass and straightedge. The decimal digits of π appear to be randomly distributed, but no proof of this conjecture has been found.
Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms. It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science.
In statistics, the standard deviation is a measure of the amount of variation of a random variable expected about its mean. 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. The standard deviation is commonly used in the determination of what constitutes an outlier and what does not.
2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and only even prime number.
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is a square number, the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures.
The Portugal national football team has represented Portugal in men's international football competitions since 1921. The national team is controlled by the Portuguese Football Federation (FPF), the governing body for football in Portugal. Portugal's home games are played at the Estádio Nacional stadiums in Portugal, and its primary training ground and technical headquarters, Cidade do Futebol, is located in Oeiras. The head coach of the team is Roberto Martínez, and the captain is Cristiano Ronaldo, who also holds the team records for most caps and most goals.
The United States men's national soccer team (USMNT) represents the United States in men's international soccer competitions. The team is governed by the United States Soccer Federation, which is a member of FIFA and CONCACAF.
The Slovakia national football team represents Slovakia in men's international football competition and it is governed by the Slovak Football Association (SFZ), the governing body for football in Slovakia. Slovakia's home stadium from 2019 is the reconstructed Tehelné pole in Bratislava. Historically, up to the split in 1993, the team participated mostly as Czechoslovakia, while it also competed as Slovakia during World War II.
The Switzerland national football team represents Switzerland in men's international football. The national team is controlled by the Swiss Football Association.
The Turkey national football team, recognized as Türkiye by FIFA, represents Turkey in men's international football matches. The team is controlled by the Turkish Football Federation, the governing body for football in Turkey, which was founded in 1923 and has been a member of FIFA since 1923 and UEFA since 1962.
The PlayStation 2 (PS2) is a home video game console developed and marketed by Sony Computer Entertainment. It was first released in Japan on 4 March 2000, in North America on 26 October 2000, in Europe on 24 November 2000, and in Australia on 30 November 2000. It is the successor to the PlayStation, as well as the second installment in the PlayStation brand of consoles. As a sixth-generation console, it competed with Nintendo's GameCube, Sega's Dreamcast, and Microsoft's Xbox. It is the best-selling video game console of all time, having sold over 155 million units worldwide, nearly triple the combined sales of its competing consoles.
Xherdan Shaqiri is a Swiss professional footballer who plays as a winger for Major League Soccer club Chicago Fire and the Switzerland national team.
Antoine Griezmann is a French professional footballer who plays as a forward or attacking midfielder for La Liga club Atlético Madrid and the France national team. Considered as one of the best players in the world, he is known for his versatility, match intelligence, attacking output, and off-ball attributes.
Paul Labile Pogba is a French professional footballer who is currently signed to Serie A club Juventus. Pogba is currently serving a doping ban, and thus ineligible to play. A versatile player, he operates primarily as a central midfielder, but can be deployed as a left winger, attacking midfielder, and defensive midfielder.
The version history of the Android mobile operating system began with the public release of its first beta on November 5, 2007. The first commercial version, Android 1.0, was released on September 23, 2008.
The operating system is developed by Google on a yearly cadence since at least 2011. New major releases are announced at Google I/O in May while still in beta testing with the stable version usually released to the public between August and October.
Ivan Benjamin Elijah Toney is an English professional footballer who plays as a forward for Premier League club Brentford and the England national team.
Bridgerton is an American historical romance television series created by Chris Van Dusen for Netflix. Based on the book series by Julia Quinn, it is Shondaland's first scripted show for Netflix. The series is set during the early 1800s in an alternative London Regency era, in which George III established racial equality and granted many people of African descent aristocratic titles due to the African heritage of his wife, Queen Charlotte. The viewer is taken to observe the highly competitive social season; where young marriageable nobility and gentry are introduced into society.
