Problem: John von Neumann:

Von Neumann introduced the study of rings of operators, through the von Neumann algebras. A von Neumann algebra is a *-algebra of bounded operators on a Hilbert space that is closed in the weak operator topology and contains the identity operator. The von Neumann bicommutant theorem shows that the analytic definition is equivalent to a purely algebraic definition as an algebra of symmetries. The direct integral was introduced in 1949 by John von Neumann. One of von Neumann's analyses was to reduce the classification of von Neumann algebras on separable Hilbert spaces to the classification of factors.

When was direct integral introduced by von Neumann?
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A: 1949

Problem: Paper at this point is uncoated. Coated paper has a thin layer of material such as calcium carbonate or china clay applied to one or both sides in order to create a surface more suitable for high-resolution halftone screens. (Uncoated papers are rarely suitable for screens above 150 lpi.) Coated or uncoated papers may have their surfaces polished by calendering. Coated papers are divided into matte, semi-matte or silk, and gloss. Gloss papers give the highest optical density in the printed image.
What process is done to polish the surface of the paper?
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Answer: calendering

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Historians trace the earliest church labeled Baptist back to 1609 in Amsterdam, with English Separatist John Smyth as its pastor. In accordance with his reading of the New Testament, he rejected baptism of infants and instituted baptism only of believing adults. Baptist practice spread to England, where the General Baptists considered Christ's atonement to extend to all people, while the Particular Baptists believed that it extended only to the elect. In 1638, Roger Williams established the first Baptist congregation in the North American colonies. In the mid-18th century, the First Great Awakening increased Baptist growth in both New England and the South. The Second Great Awakening in the South in the early 19th century increased church membership, as did the preachers' lessening of support for abolition and manumission of slavery, which had been part of the 18th-century teachings. Baptist missionaries have spread their church to every continent.
Who has spread the teachings of the Baptists to each continent?
A: Baptist missionaries

Context and question: The Vedas, the earliest texts on Indian philosophy and Hindu philosophy dating back to the late 2nd millennium BC, describe ancient Hindu cosmology, in which the universe goes through repeated cycles of creation, destruction and rebirth, with each cycle lasting 4,320 million years. Ancient Greek philosophers, including Parmenides and Heraclitus, wrote essays on the nature of time. Plato, in the Timaeus, identified time with the period of motion of the heavenly bodies. Aristotle, in Book IV of his Physica defined time as 'number of movement in respect of the before and after'.
In what year did Plato write Book IV of his Physica?
Answer: unanswerable

Question: The economic output of the metropolitan area alone is worth more than one third of national GDP around $6.5billion in terms of nominal GDP NR.s 550 billion approximately per year $2200 per capital income approx three times national average. Kathmandu exports handicrafts, artworks, garments, carpets, pashmina, paper; trade accounts for 21% of its finances.[which?] Manufacturing is also important and accounts for 19% of the revenue that Kathmandu generates. Garments and woolen carpets are the most notable manufactured products. Other economic sectors in Kathmandu include agriculture (9%), education (6%), transport (6%), and hotels and restaurants (5%). Kathmandu is famous for lokta paper and pashmina shawls.
Is there an answer to this question: What portion of Kathmandu's economy consists of agriculture?

Answer: 9%

QUES: In 1952, following a referendum, Baden, Wurttemberg-Baden, and Wurttemberg-Hohenzollern merged into Baden-Wurttemberg. In 1957, the Saar Protectorate rejoined the Federal Republic as the Saarland. German reunification in 1990, in which the German Democratic Republic (East Germany) ascended into the Federal Republic, resulted in the addition of the re-established eastern states of Brandenburg, Mecklenburg-West Pomerania (in German Mecklenburg-Vorpommern), Saxony (Sachsen), Saxony-Anhalt (Sachsen-Anhalt), and Thuringia (Thuringen), as well as the reunification of West and East Berlin into Berlin and its establishment as a full and equal state. A regional referendum in 1996 to merge Berlin with surrounding Brandenburg as "Berlin-Brandenburg" failed to reach the necessary majority vote in Brandenburg, while a majority of Berliners voted in favour of the merger.

Which areas merged together in 1957?
What is the answer?
ANS:
unanswerable