Problem: Palermo (Italian: [paˈlɛrmo] ( listen), Sicilian: Palermu, Latin: Panormus, from Greek: Πάνορμος, Panormos, Arabic: بَلَرْم‎, Balarm; Phoenician: זִיז, Ziz) is a city in Insular Italy, the capital of both the autonomous region of Sicily and the Province of Palermo. The city is noted for its history, culture, architecture and gastronomy, playing an important role throughout much of its existence; it is over 2,700 years old. Palermo is located in the northwest of the island of Sicily, right by the Gulf of Palermo in the Tyrrhenian Sea.
For what is Palermo known?
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Answer: history, culture, architecture and gastronomy


Problem: Several solid dielectrics are available, including paper, plastic, glass, mica and ceramic materials. Paper was used extensively in older devices and offers relatively high voltage performance. However, it is susceptible to water absorption, and has been largely replaced by plastic film capacitors. Plastics offer better stability and ageing performance, which makes them useful in timer circuits, although they may be limited to low operating temperatures and frequencies. Ceramic capacitors are generally small, cheap and useful for high frequency applications, although their capacitance varies strongly with voltage and they age poorly. They are broadly categorized as class 1 dielectrics, which have predictable variation of capacitance with temperature or class 2 dielectrics, which can operate at higher voltage. Glass and mica capacitors are extremely reliable, stable and tolerant to high temperatures and voltages, but are too expensive for most mainstream applications. Electrolytic capacitors and supercapacitors are used to store small and larger amounts of energy, respectively, ceramic capacitors are often used in resonators, and parasitic capacitance occurs in circuits wherever the simple conductor-insulator-conductor structure is formed unintentionally by the configuration of the circuit layout.
What is one type of reliable capacitor that is non-resistant to temperature and voltage changes?
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Answer: unanswerable


Problem: At about this time the surrounding areas experienced recurring fragmentation and reincorporations among a number of feudal secular and ecclesiastical lordships, a common process in the Holy Roman Empire. Alsace experienced great prosperity during the 12th and 13th centuries under Hohenstaufen emperors. Frederick I set up Alsace as a province (a procuratio, not a provincia) to be ruled by ministeriales, a non-noble class of civil servants. The idea was that such men would be more tractable and less likely to alienate the fief from the crown out of their own greed. The province had a single provincial court (Landgericht) and a central administration with its seat at Hagenau. Frederick II designated the Bishop of Strasbourg to administer Alsace, but the authority of the bishop was challenged by Count Rudolf of Habsburg, who received his rights from Frederick II's son Conrad IV. Strasbourg began to grow to become the most populous and commercially important town in the region. In 1262, after a long struggle with the ruling bishops, its citizens gained the status of free imperial city. A stop on the Paris-Vienna-Orient trade route, as well as a port on the Rhine route linking southern Germany and Switzerland to the Netherlands, England and Scandinavia, it became the political and economic center of the region. Cities such as Colmar and Hagenau also began to grow in economic importance and gained a kind of autonomy within the "Decapole" or "Dekapolis", a federation of ten free towns.
Who questioned the authority of Count Rudolf?
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Answer:
unanswerable