Problem: Electric motor:

To minimize overall weight and size, miniature PM motors may use high energy magnets made with neodymium or other strategic elements; most such are neodymium-iron-boron alloy. With their higher flux density, electric machines with high-energy PMs are at least competitive with all optimally designed singly-fed synchronous and induction electric machines. Miniature motors resemble the structure in the illustration, except that they have at least three rotor poles (to ensure starting, regardless of rotor position) and their outer housing is a steel tube that magnetically links the exteriors of the curved field magnets.

How do PMs rate against other types of electric motors?
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A: least competitive

Problem: In contrast to the hazy, relatively featureless atmosphere of Uranus, Neptune's atmosphere has active and visible weather patterns. For example, at the time of the Voyager 2 flyby in 1989, the planet's southern hemisphere had a Great Dark Spot comparable to the Great Red Spot on Jupiter. These weather patterns are driven by the strongest sustained winds of any planet in the Solar System, with recorded wind speeds as high as 2,100 kilometres per hour (580 m/s; 1,300 mph). Because of its great distance from the Sun, Neptune's outer atmosphere is one of the coldest places in the Solar System, with temperatures at its cloud tops approaching 55 K (218 C). Temperatures at the planet's centre are approximately 5,400 K (5,100 C). Neptune has a faint and fragmented ring system (labelled "arcs"), which was first detected during the 1960s and confirmed by Voyager 2.
What weather did Voyager 2 observe on Neptune?
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Answer: Great Dark Spot

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The American studies program reflected the worldwide anti-Communist ideological struggle. Norman Holmes Pearson, who worked for the Office of Strategic Studies in London during World War II, returned to Yale and headed the new American studies program, in which scholarship quickly became an instrument of promoting liberty. Popular among undergraduates, the program sought to instruct them in the fundamentals of American civilization and thereby instill a sense of nationalism and national purpose. Also during the 1940s and 1950s, Wyoming millionaire William Robertson Coe made large contributions to the American studies programs at Yale University and at the University of Wyoming. Coe was concerned to celebrate the 'values' of the Western United States in order to meet the "threat of communism."
Who contributed to the American studies programs at Yale and University of Wyoming?
A: William Robertson Coe

Context and question: The Virgin birth of Jesus was an almost universally held belief among Christians from the 2nd until the 19th century. It is included in the two most widely used Christian creeds, which state that Jesus "was incarnate of the Holy Spirit and the Virgin Mary" (the Nicene Creed in what is now its familiar form) and the Apostles' Creed. The Gospel of Matthew describes Mary as a virgin who fulfilled the prophecy of Isaiah 7:14, mistranslating the Hebrew word alma ("young woman") in Isaiah 7:14 as "virgin", though.[citation needed] The authors of the Gospels of Matthew and Luke consider Jesus' conception not the result of intercourse and assert that Mary had "no relations with man" before Jesus' birth.[Mt 1:18] [Mt 1:25] [Lk 1:34] This alludes to the belief that Mary conceived Jesus through the action of God the Holy Spirit, and not through intercourse with Joseph or anyone else.
Along with the Nicene Creed, which other Christian creed asserts the Virgin birth of Jesus?
Answer: the Apostles' Creed

Question: In response to the September 11 attacks, and as part of the Global War on Terror, U.S. and NATO forces invaded Afghanistan in October 2001, displacing the Taliban government. The U.S. Army also led the combined U.S. and allied invasion of Iraq in 2003. It served as the primary source for ground forces with its ability to sustain short and long-term deployment operations. In the following years the mission changed from conflict between regular militaries to counterinsurgency, resulting in the deaths of more than 4,000 U.S service members (as of March 2008) and injuries to thousands more. 23,813 insurgents were killed in Iraq between 20032011.
Is there an answer to this question: How many European soldiers died as of March 2008 due to counterinsurgency?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Architectural interest in Cubism centered on the dissolution and reconstitution of three-dimensional form, using simple geometric shapes, juxtaposed without the illusions of classical perspective. Diverse elements could be superimposed, made transparent or penetrate one another, while retaining their spatial relationships. Cubism had become an influential factor in the development of modern architecture from 1912 (La Maison Cubiste, by Raymond Duchamp-Villon and Andre Mare) onwards, developing in parallel with architects such as Peter Behrens and Walter Gropius, with the simplification of building design, the use of materials appropriate to industrial production, and the increased use of glass.
Who said that Cubism was not becoming an influetial aspect in modern architecture ?
A:
unanswerable