Antigua and Barbuda is a country in the West Indies in the Americas, lying between the Caribbean Sea and the Atlantic Ocean. It consists of two major islands, Antigua and Barbuda, and a number of smaller islands. The permanent population numbers about 81,800 and the capital and largest port and city is St. John's on Antigua. Lying near each other, Antigua and Barbuda are in the middle of the Leeward Islands, part of the Lesser Antilles, roughly at 17°N of the equator.
N,N-Dimethyltryptamine is a chemical substance that occurs in many plants and animals and which is both a derivative and a structural analog of tryptamine. It can be consumed as a psychedelic drug and has historically been prepared by various cultures for ritual purposes as an entheogen. Rick Strassman labeled it "the spirit molecule". DMT is illegal in most countries.
The knapsack problem or rucksack problem is a problem in combinatorial optimization: Given a set of items, each with a weight and a value, determine the number of each item to include in a collection so that the total weight is less than or equal to a given limit and the total value is as large as possible. It derives its name from the problem faced by someone who is constrained by a fixed-size knapsack and must fill it with the most valuable items.
In physics, redshift is a phenomenon where electromagnetic radiation from an object undergoes an increase in wavelength. Whether or not the radiation is visible, "redshift" means an increase in wavelength, equivalent to a decrease in wave frequency and photon energy, in accordance with, respectively, the wave and quantum theories of light.
In statistics, the standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values. A low standard deviation indicates that the data points tend to be close to the mean of the set, while a high standard deviation indicates that the data points are spread out over a wider range of values.
The Piccadilly line is a London Underground line that runs between Cockfosters in suburban north London and Acton Town in the west, where it divides into two branches: one of these runs to Heathrow Airport and the other to Uxbridge in northwest London, with some services terminating at Rayners Lane.
In chemistry, the molar massM is a physical property defined as the mass of a given substance divided by the amount of substance. The base SI unit for molar mass is kg/mol. However, for historical reasons, molar masses are almost always expressed in g/mol.
The Mid-Atlantic Ridge (MAR) is a mid-ocean ridge, a divergent tectonic plate or constructive plate boundary located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world. In the North Atlantic it separates the Eurasian and North American plates, and in the South Atlantic it separates the African and South American plates. The ridge extends from a junction with the Gakkel Ridge northeast of Greenland southward to the Bouvet Triple Junction in the South Atlantic. Although the Mid-Atlantic Ridge is mostly an underwater feature, portions of it have enough elevation to extend above sea level. The section of the ridge that includes Iceland is known as the Reykjanes Ridge. The ridge has an average spreading rate of about 2.5 centimetres (0.98 in) per year.
A percentile is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations falls. For example, the 20th percentile is the value below which 20% of the observations may be found.
The B-series are a family of inline four-cylinder DOHC automotive engines introduced by Honda in 1988. Sold concurrently with the D-series which were primarily SOHC engines designed for more economical applications, the B-series were a performance option featuring dual overhead cams along with the first application of Honda's VTEC system. To identify a Honda B-series engine, the letter B is normally followed by two numbers to designate the displacement of the engine, another letter, and in US-spec engines, another number. The Japanese spec-engines are normally designated with a four character alphanumeric designation. The B-series, the B20B variant in particular, is not to be confused with the earlier Honda B20A engine introduced in 1985 and primarily available in the Prelude and Accord-derived vehicles from 1985-1991. While sharing some design elements and both being multivalve Honda four-cylinders, the B-series and B20A differ substantially in architecture, enough to be considered distinct engine families.
The VQ is a V6 piston engine produced by Nissan with displacements varying from 2.0 L to 4.0 L. It is an aluminum block DOHC 4-valve design with aluminum heads. It is fitted with Nissan's EGI/ECCS sequential multi-point fuel injection (MPFI) system. Later versions feature various implementations of variable valve timing and replace MPFI with direct fuel injection. The VQ series engine was honored by Ward's 10 Best Engines list almost every year from the list's inception. The VQ series replaced the VG series of engines.
In geology, the places known as hotspots or hot spots are volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle. Their position on the Earth's surface is independent of tectonic plate boundaries. There are two hypotheses that attempt to explain their origins. One suggests that hotspots are due to mantle plumes that rise as thermal diapirs from the core–mantle boundary. The other hypothesis is that lithospheric extension permits the passive rising of melt from shallow depths. This hypothesis considers the term "hotspot" to be a misnomer, asserting that the mantle source beneath them is, in fact, not anomalously hot at all. Well-known examples include the Hawaii, Iceland and Yellowstone hotspots.
The Wilcoxon signed-rank test is a non-parametric statistical hypothesis test used to compare two related samples, matched samples, or repeated measurements on a single sample to assess whether their population mean ranks differ. It can be used as an alternative to the paired Student's t-test when the population cannot be assumed to be normally distributed. A Wilcoxon signed-rank test is a nonparametric test that can be used to determine whether two dependent samples were selected from populations having the same distribution.
The European route E 22 is one of the longest European routes. It has a length of about 5,320 km (3,310 mi). Many of the E-roads have been extended into Asia since the year 2000; the E 22 was extended on 24 June 2002.
Shuswap Lake Marine Provincial Park is an 896-hectare provincial park in British Columbia, Canada, comprising 991 ha. The Park has a variety of amenities including boat launch ramps, picnic areas, and 27 campsites around the perimeter of Shuswap Lake. The lake's name and that of the surrounding Shuswap Country is from the Shuswap people (Secwepemc), the most northern of the Salishan speaking people.
Sittichai Sangkhachot is a Thai beach volleyball player. He competed at the 2012 Asian Beach Games in Haiyang, China
Nagaraja Cholan MA, MLA is a 2013 Tamil political satire film directed by Manivannan. A sequel to Amaidhi Padai (1994), it stars Sathyaraj in his 200th film, reprising his role as Nagaraja Cholan from the original, alongside an ensemble cast including Seeman, Manivannan, his son Raghuvannan, Mrudula Murali, Komal Sharma and Varsha Ashwathi. The film, featuring music composed by James Vasanthan, was produced by Ravichandran and K. Suresh under the banner of V House Production and shot in Coimbatore and surrounding areas in one single schedule. Unlike the original, Nagaraja Cholan MA, MLA opened to mixed reviews. It was Manivannan's 50th and last film as a director and actor, as he died a month after the film's release.
In terms of design, vintage generally refers to any artificial object or objects that are representative of or dating from an earlier period of time.
