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The largest opera houses of Paris are the 19th-century Opéra Garnier (historical Paris Opéra) and modern Opéra Bastille; the former tends toward the more classic ballets and operas, and the latter provides a mixed repertoire of classic and modern. In middle of the 19th century, there were three other active and competing opera houses: the Opéra-Comique (which still exists), Théâtre-Italien, and Théâtre Lyrique (which in modern times changed its profile and name to Théâtre de la Ville). Philharmonie de Paris, the modern symphonic concert hall of Paris, opened in January 2015. Another musical landmark is the Théâtre des Champs-Élysées, where the first performances of Diaghilev's Ballets Russes took place in 1913.
When did Philharmonie de Paris open?
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The answer: January 2015


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In Anglo-American academic political philosophy, the publication of John Rawls's A Theory of Justice in 1971 is considered a milestone. Rawls used a thought experiment, the original position, in which representative parties choose principles of justice for the basic structure of society from behind a veil of ignorance. Rawls also offered a criticism of utilitarian approaches to questions of political justice. Robert Nozick's 1974 book Anarchy, State, and Utopia, which won a National Book Award, responded to Rawls from a libertarian perspective and gained academic respectability for libertarian viewpoints.
Who Published A Theory of Justice?
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The answer: John Rawls


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Concentrating Solar Power (CSP) systems use lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam. The concentrated heat is then used as a heat source for a conventional power plant. A wide range of concentrating technologies exists; the most developed are the parabolic trough, the concentrating linear fresnel reflector, the Stirling dish and the solar power tower. Various techniques are used to track the Sun and focus light. In all of these systems a working fluid is heated by the concentrated sunlight, and is then used for power generation or energy storage.
What is one of the most developed Concentrating Solar Power technologies?
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The answer: the Stirling dish


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Brian May and Roger Taylor performed together at several award ceremonies and charity concerts, sharing vocals with various guest singers. During this time, they were billed as Queen + followed by the guest singer's name. In 1998, the duo appeared at Luciano Pavarotti's benefit concert with May performing "Too Much Love Will Kill You" with Pavarotti, later playing "Radio Ga Ga", "We Will Rock You", and "We Are the Champions" with Zucchero. They again attended and performed at Pavarotti's benefit concert in Modena, Italy in May 2003. Several of the guest singers recorded new versions of Queen's hits under the Queen + name, such as Robbie Williams providing vocals for "We Are the Champions" for the soundtrack of A Knight's Tale (2001).
Which artist provided vocals for the Queen song found on the soundtrack to A Knight's Tale?
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The answer:
Robbie Williams