Problem: As for modern and contemporary architecture, Strasbourg possesses some fine Art Nouveau buildings (such as the huge Palais des Fêtes and houses and villas like Villa Schutzenberger and Hôtel Brion), good examples of post-World War II functional architecture (the Cité Rotterdam, for which Le Corbusier did not succeed in the architectural contest) and, in the very extended Quartier Européen, some spectacular administrative buildings of sometimes utterly large size, among which the European Court of Human Rights building by Richard Rogers is arguably the finest. Other noticeable contemporary buildings are the new Music school Cité de la Musique et de la Danse, the Musée d'Art moderne et contemporain and the Hôtel du Département facing it, as well as, in the outskirts, the tramway-station Hoenheim-Nord designed by Zaha Hadid.
Who designed the Hotel du Departement?
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Answer: unanswerable


Problem: Manhattan was on track to have an estimated 90,000 hotel rooms at the end of 2014, a 10% increase from 2013. In October 2014, the Anbang Insurance Group, based in China, purchased the Waldorf Astoria New York for US$1.95 billion, making it the world's most expensive hotel ever sold.
The Waldorf Astoria hotel sold for how many dollars?
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Answer: 1.95 billion


Problem: While the use of iron started to become more widespread around 1200 BC, mainly because of interruptions in the trade routes for tin, the metal is much softer than bronze. However, very small amounts of steel, (an alloy of iron and around 1% carbon), was always a byproduct of the bloomery process. The ability to modify the hardness of steel by heat treatment had been known since 1100 BC, and the rare material was valued for the manufacture of tools and weapons. Because the ancients could not produce temperatures high enough to melt iron fully, the production of steel in decent quantities did not occur until the introduction of blister steel during the Middle Ages. This method introduced carbon by heating wrought iron in charcoal for long periods of time, but the penetration of carbon was not very deep, so the alloy was not homogeneous. In 1740, Benjamin Huntsman began melting blister steel in a crucible to even out the carbon content, creating the first process for the mass production of tool steel. Huntsman's process was used for manufacturing tool steel until the early 1900s.
What process was used for manufacturing tool steel until the nineteenth century?
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Answer:
unanswerable