Aberrations are departures of the performance of an optical system from the predictions of paraxial optics. Aberration leads to blurring of the image produced by an image-forming optical system. It occurs when light from one point of an object after transmission through the system does not converge into (or does not diverge from) a single point. Instrument-makers need to correct optical systems to compensate for aberration.
Harry Lillis "Bing" Crosby (May 3, 1903 – October 14, 1977) was a popular American singer and actor whose career stretched over more than half a century from 1926 until his death. Crosby was the best-selling recording artist until well into the rock era, with over half a billion records in circulation. One of the first multimedia stars, from 1934 to 1954 Bing Crosby held a nearly unrivaled command of record sales, radio ratings and motion picture grosses.
Bandy (russian hockey) is a team winter sport played on ice, in which skaters use sticks to direct a ball into the opposing team's goal. The rules of the game have many similarities to those of association football: the game is played on a rectangle of ice the same size as a football field. Each team has eleven players, one of whom is a goalkeeper. A standard bandy match consists of two halves of 45 minutes each. The offside rule is also similar to that observed in association football.
The Battle of Actium was the decisive confrontation of the Final War of the Roman Republic. It was fought between the forces of Octavian and the combined forces of Mark Antony and Cleopatra. The battle took place on 2 September 31 BC, on the Ionian Sea near the Roman colony of Actium in Greece. Octavian's fleet was commanded by Marcus Vipsanius Agrippa, while Antony's fleet was supported by the ships of his beloved, Cleopatra VII, Queen of Ptolemaic Egypt.
Deprogramming refers to actions that attempt to force a person to abandon allegiance to a religious, political, economic, or social group. Methods and practices typically involve violent kidnapping and coercion. Similar actions, when done without force, are called "exit counseling". Deprogramming is often commissioned by relatives of the follower, often parents of adult children, and is taken against his/her will, which has led to controversies over freedom of religion and civil rights.
Equidae (sometimes known as the horse family) is the taxonomic family of horses and related animals, including the extant horses, donkeys, and zebras, and many other species known only from fossils. All extant species are in the genus Equus. Equidae belongs to the order Perissodactyla, which includes the extant tapirs and rhinoceros, and still more fossils. The term equid refers to any member of this family, including any equine.
The Federal Reserve System (also known as the Federal Reserve, and informally as the Fed) is the central banking system of the United States. It was conceived by several of the world's leading bankers in 1910 and enacted in 1913, with the passing of the Federal Reserve Act. The passing of the Federal Reserve Act was largely a response to prior financial panics and bank runs, the most severe of which being the Panic of 1907.
Franco Baresi is an Italian youth team coach and former football defender with Milan, acknowledged as one of the greatest defenders ever to play the game. Baresi was colloquially called "piscinin", Milanese dialect for "little one". He is also the younger brother of Internazionale assistant manager Giuseppe Baresi. Hoping Franco could play with him in the nerazzurri; Giuseppe brought him for a trial in Inter's youth team, but Franco was rejected.
Saint Francis Xavier, born Francisco de Jaso y Azpilicueta was a pioneering Roman Catholic missionary born in the Kingdom of Navarre and co-founder of the Society of Jesus. He was a student of Saint Ignatius Loyola and one of the first seven Jesuits who dedicated themselves to the service of God at Montmarte in 1534. He led an extensive mission into Asia, mainly in the Asian Portuguese Empire of the time.
Gold is a chemical element with the symbol Au and an atomic number of 79. It has been a highly sought-after precious metal for coinage, jewelry, and other arts since the beginning of recorded history. The metal occurs as nuggets or grains in rocks, in veins and in alluvial deposits. Gold is dense, soft, shiny and the most malleable and ductile pure metal known.
The 1998 Winter Olympics, officially the XVIII Olympic Winter Games, were a winter multi-sport event which was celebrated in 1998 in Nagano, Japan. These Games marked the return of the Winter Olympics to Japan since 1972, when the games were held in Sapporo. Overall this was the third Olympic Games to be held in Japan with the first being the 1964 Summer Olympics held in Tokyo.