The problem: Answer a question about this article:
The SI unit of pressure is the pascal (symbol Pa), but vacuum is often measured in torrs, named for Torricelli, an early Italian physicist (16081647). A torr is equal to the displacement of a millimeter of mercury (mmHg) in a manometer with 1 torr equaling 133.3223684 pascals above absolute zero pressure. Vacuum is often also measured on the barometric scale or as a percentage of atmospheric pressure in bars or atmospheres. Low vacuum is often measured in millimeters of mercury (mmHg) or pascals (Pa) below standard atmospheric pressure. "Below atmospheric" means that the absolute pressure is equal to the current atmospheric pressure.
Absolute pressure being equal to current atmospheric pressure means what?
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The answer: "Below atmospheric"

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As in other major American cities in the postwar era, construction of an extensive highway and freeway system around Detroit and pent-up demand for new housing stimulated suburbanization; highways made commuting by car easier. In 1956, Detroit's last heavily used electric streetcar line along the length of Woodward Avenue was removed and replaced with gas-powered buses. It was the last line of what had once been a 534-mile network of electric streetcars. In 1941 at peak times, a streetcar ran on Woodward Avenue every 60 seconds.
In which year was the last electric streetcar line removed?
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The answer: 1956

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The book was never published. Instead the Normans whirled off to New York. Norman published the gist of his planned travel book curiously mixed with vituperation against the Ottoman Empire in an article in June, 1896, in Scribner's Magazine. The empire had descended from an enlightened civilization ruling over barbarians for their own good to something considerably less. The difference was the Hamidian Massacres, which were being conducted even as the couple traveled the Balkans. According to Norman now, the empire had been established by "the Moslem horde" from Asia, which was stopped by "intrepid Hungary." Furthermore, "Greece shook off the turbaned destroyer of her people" and so on. The Russians were suddenly liberators of oppressed Balkan states. Having portrayed the Armenians as revolutionaries in the name of freedom with the expectation of being rescued by the intervention of Christian Europe, he states "but her hope was vain." England had "turned her back." Norman concluded his exhortation with "In the Balkans one learns to hate the Turk." Norman made sure that Gladstone read the article. Prince Nicolas of Montenegro wrote a letter thanking him for his article.
Who did Norman say "turned her back"?
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The answer: England

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The newly invented Western Electric moving coil or dynamic microphone was part of the Wide Range System. It had a flatter audio response than the old style Wente condenser type and didn't require electronics installed in the microphone housing. Signals fed to the cutting head were pre-emphasized in the treble region to help override noise in playback. Groove cuts in the vertical plane were employed rather than the usual lateral cuts. The chief advantage claimed was more grooves per inch that could be crowded together, resulting in longer playback time. Additionally, the problem of inner groove distortion, which plagued lateral cuts, could be avoided with the vertical cut system. Wax masters were made by flowing heated wax over a hot metal disc thus avoiding the microscopic irregularities of cast blocks of wax and the necessity of planing and polishing.
How was sound improved using the moving coil microphone?
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The answer:
override noise in playback