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The album also featured the hit single "Bohemian Rhapsody", which was number one in the UK for nine weeks. Mercury's close friend and advisor, Capital London radio DJ Kenny Everett, played a pivotal role in giving the single exposure. It is the third-best-selling single of all time in the UK, surpassed only by Band Aid's "Do They Know It's Christmas?" and Elton John's "Candle in the Wind 1997", and is the best-selling commercial single in the UK. It also reached number nine in the United States (a 1992 re-release reached number two on the Billboard Hot 100 for five weeks). It is the only single ever to sell a million copies on two separate occasions, and became the Christmas number one twice in the UK, the only single ever to do so. "Bohemian Rhapsody" has been voted numerous times the greatest song of all time. The band decided to make a video to help go with the single and hired Trilion, a subsidiary of the former management company Trident Studios, using new technology to create the video; the result is generally considered to have been the first "true" music video ever produced, and popularised the medium. The album's first track "Death on Two Legs" is said to be written by Mercury about Norman Sheffield and the former management at Trident who helped make the video so popular. Although other bands, including the Beatles, had made short promotional films or videos of songs prior to this, generally, those were specifically made to be aired on specific television shows. On the impact of "Bohemian Rhapsody", Rolling Stone states: "Its influence cannot be overstated, practically inventing the music video seven years before MTV went on the air." The second single from the album, "You're My Best Friend", the second song composed by John Deacon, and his first single, peaked at number sixteen in the United States and went on to become a worldwide Top Ten hit. The band's A Night at the Opera Tour began in November 1975, and covered Europe, the United States, Japan, and Australia.
What Queen single sold a million copies on two separate occasions?
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The answer: Bohemian Rhapsody


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Gaddafi briefly studied History at the University of Libya in Benghazi, before dropping out to join the military. Despite his police record, in 1963 he began training at the Royal Military Academy, Benghazi, alongside several like-minded friends from Misrata. The armed forces offered the only opportunity for upward social mobility for underprivileged Libyans, and Gaddafi recognised it as a potential instrument of political change. Under Idris, Libya's armed forces were trained by the British military; this angered Gaddafi, who viewed the British as imperialists, and accordingly he refused to learn English and was rude to the British officers, ultimately failing his exams. British trainers reported him for insubordination and abusive behaviour, stating their suspicion that he was involved in the assassination of the military academy's commander in 1963. Such reports were ignored and Gaddafi quickly progressed through the course.
What subject did Gaddafi briefly study before joining the military?
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The answer: History at the University of Libya in Benghazi


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Darwin was hard at work on his "big book" on Natural Selection, when on 18 June 1858 he received a parcel from Wallace, who stayed on the Maluku Islands (Ternate and Gilolo). It enclosed twenty pages describing an evolutionary mechanism, a response to Darwin's recent encouragement, with a request to send it on to Lyell if Darwin thought it worthwhile. The mechanism was similar to Darwin's own theory. Darwin wrote to Lyell that "your words have come true with a vengeance, ... forestalled" and he would "of course, at once write and offer to send [it] to any journal" that Wallace chose, adding that "all my originality, whatever it may amount to, will be smashed". Lyell and Hooker agreed that a joint publication putting together Wallace's pages with extracts from Darwin's 1844 Essay and his 1857 letter to Gray should be presented at the Linnean Society, and on 1 July 1858, the papers entitled On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection, by Wallace and Darwin respectively, were read out but drew little reaction. While Darwin considered Wallace's idea to be identical to his concept of natural selection, historians have pointed out differences. Darwin described natural selection as being analogous to the artificial selection practised by animal breeders, and emphasised competition between individuals; Wallace drew no comparison to selective breeding, and focused on ecological pressures that kept different varieties adapted to local conditions. Some historians have suggested that Wallace was actually discussing group selection rather than selection acting on individual variation.
What do some historians think made Wallace's concept of natural selection different from Darwin's?
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The answer: Some historians have suggested that Wallace was actually discussing group selection rather than selection acting on individual variation.


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Translations of sung texts—whether of the above type meant to be sung or of a more or less literal type meant to be read—are also used as aids to audiences, singers and conductors, when a work is being sung in a language not known to them. The most familiar types are translations presented as subtitles or surtitles projected during opera performances, those inserted into concert programs, and those that accompany commercial audio CDs of vocal music. In addition, professional and amateur singers often sing works in languages they do not know (or do not know well), and translations are then used to enable them to understand the meaning of the words they are singing.
What type of familiar translation may be seen during an opera?
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The answer:
subtitles or surtitles