Problem: Bermuda:

The first known European explorer to reach Bermuda was Spanish sea captain Juan de Bermúdez in 1503, after whom the islands are named. He claimed the apparently uninhabited islands for the Spanish Empire. Paying two visits to the archipelago, Bermúdez never landed on the islands, but did create a recognisable map of the archipelago. Shipwrecked Portuguese mariners are now thought to have been responsible for the 1543 inscription in Portuguese Rock (previously called Spanish Rock). Subsequent Spanish or other European parties are believed to have released pigs there, which had become feral and abundant on the island by the time European settlement began. In 1609, the English Virginia Company, which had established Jamestown in Virginia (a term originally applied to all of the North American continent) two years earlier, permanently settled Bermuda in the aftermath of a hurricane, when the crew and passengers of the Sea Venture steered the ship onto the surrounding reef to prevent its sinking, then landed ashore.

Who was responsible for the 1534 inscription in Portuguese Rock?
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A: unanswerable


Problem: In 1824, the French physicist François Arago formulated the existence of rotating magnetic fields, termed Arago's rotations, which, by manually turning switches on and off, Walter Baily demonstrated in 1879 as in effect the first primitive induction motor.  In the 1880s, many inventors were trying to develop workable AC motors because AC's advantages in long-distance high-voltage transmission were counterbalanced by the inability to operate motors on AC. The first alternating-current commutatorless induction motors were independently invented by Galileo Ferraris and Nikola Tesla, a working motor model having been demonstrated by the former in 1885 and by the latter in 1887. In 1888, the Royal Academy of Science of Turin published Ferraris' research detailing the foundations of motor operation while however concluding that "the apparatus based on that principle could not be of any commercial importance as motor." In 1888, Tesla presented his paper A New System for Alternating Current Motors and Transformers to the AIEE that described three patented two-phase four-stator-pole motor types: one with a four-pole rotor forming a non-self-starting reluctance motor, another with a wound rotor forming a self-starting induction motor, and the third a true synchronous motor with separately excited DC supply to rotor winding. One of the patents Tesla filed in 1887, however, also described a shorted-winding-rotor induction motor. George Westinghouse promptly bought Tesla's patents, employed Tesla to develop them, and assigned C. F. Scott to help Tesla, Tesla left for other pursuits in 1889.  The constant speed AC induction motor was found not to be suitable for street cars but Westinghouse engineers successfully adapted it to power a mining operation in Telluride, Colorado in 1891. Steadfast in his promotion of three-phase development, Mikhail Dolivo-Dobrovolsky invented the three-phase cage-rotor induction motor in 1889 and the three-limb transformer in 1890. This type of motor is now used for the vast majority of commercial applications. However, he claimed that Tesla's motor was not practical because of two-phase pulsations, which prompted him to persist in his three-phase work. Although Westinghouse achieved its first practical induction motor in 1892 and developed a line of polyphase 60 hertz induction motors in 1893, these early Westinghouse motors were two-phase motors with wound rotors until B. G. Lamme developed a rotating bar winding rotor. The General Electric Company began developing three-phase induction motors in 1891. By 1896, General Electric and Westinghouse signed a cross-licensing agreement for the bar-winding-rotor design, later called the squirrel-cage rotor. Induction motor improvements flowing from these inventions and innovations were such that a 100 horsepower (HP) induction motor currently has the same mounting dimensions as a 7.5 HP motor in 1897.
 For what application was Tesla's motor never used?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the 20th century after decades of intense warfare and political turmoil terms such as "Near East", "Far East" and "Middle East" were relegated to the experts, especially in the new field of political science. The new wave of diplomats often came from those programs. Archaeology on the international scene, although very much of intellectual interest to the major universities, fell into the shadow of international relations. Their domain became the Ancient Near East, which could no longer be relied upon to be the Near East. The Ottoman Empire was gone, along with all the other empires of the 19th century, replaced with independent republics. Someone had to reconcile the present with the past. This duty was inherited by various specialized agencies that were formed to handle specific aspects of international relations, now so complex as to be beyond the scope and abilities of a diplomatic corps in the former sense. The ancient Near East is frozen in time. The living Near East is primarily what the agencies say it is. In most cases this single term is inadequate to describe the geographical range of their operations. The result is multiple definitions.
Where did the new wave of diplomats often come from?
A: the new field of political science


Context and question: The rebels soon split into various factions fighting one another. The Economic Community Monitoring Group under the Economic Community of West African States organized a military task force to intervene in the crisis. From 1989 to 1996 one of Africa's bloodiest civil wars ensued, claiming the lives of more than 200,000 Liberians and displacing a million others into refugee camps in neighboring countries. A peace deal between warring parties was reached in 1995, leading to Taylor's election as president in 1997.
What did the Economic Community Monitorig Group cause the rebels to do?
Answer: unanswerable


Question: By the time Oklahoma was admitted to the Union in 1907, Oklahoma City had surpassed Guthrie, the territorial capital, as the population center and commercial hub of the new state. Soon after, the capital was moved from Guthrie to Oklahoma City. Oklahoma City was a major stop on Route 66 during the early part of the 20th century; it was prominently mentioned in Bobby Troup's 1946 jazz classic, "(Get Your Kicks on) Route 66", later made famous by artist Nat King Cole.
Is there an answer to this question: What was the capital of Oklahoma before Oklahoma city?

Answer: Guthrie


Question: An argument for idealism, such as those of Hegel and Berkeley, is ipso facto an argument against materialism. Matter can be argued to be redundant, as in bundle theory, and mind-independent properties can in turn be reduced to subjective percepts. Berkeley presents an example of the latter by pointing out that it is impossible to gather direct evidence of matter, as there is no direct experience of matter; all that is experienced is perception, whether internal or external. As such, the existence of matter can only be assumed from the apparent (perceived) stability of perceptions; it finds absolutely no evidence in direct experience.
Is there an answer to this question: Why is it possible to gather direct evidence? 

Answer:
unanswerable