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The art of mechanical analog computing reached its zenith with the differential analyzer, built by H. L. Hazen and Vannevar Bush at MIT starting in 1927. This built on the mechanical integrators of James Thomson and the torque amplifiers invented by H. W. Nieman. A dozen of these devices were built before their obsolescence became obvious.
The torque amplifiers of the differential analyzer were created by whom?
A: H. W. Nieman

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The metal's distinctive natural green patina has long been coveted by architects and designers. The final patina is a particularly durable layer that is highly resistant to atmospheric corrosion, thereby protecting the underlying metal against further weathering. It can be a mixture of carbonate and sulfate compounds in various amounts, depending upon environmental conditions such as sulfur-containing acid rain. Architectural copper and its alloys can also be 'finished' to embark a particular look, feel, and/or color. Finishes include mechanical surface treatments, chemical coloring, and coatings.
What can be done to copper to give it a certain look?
A: finished

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The Bronx has been featured significantly in fiction literature. All of the characters in Herman Wouk's City Boy: The Adventures of Herbie Bookbinder (1948) live in the Bronx, and about half of the action is set there. Kate Simon's Bronx Primitive: Portraits of a Childhood is directly autobiographical, a warm account of a Polish-Jewish girl in an immigrant family growing up before World War II, and living near Arthur Avenue and Tremont Avenue. In Jacob M. Appel's short story, "The Grand Concourse" (2007), a woman who grew up in the iconic Lewis Morris Building returns to the Morrisania neighborhood with her adult daughter. Similarly, in Avery Corman's book The Old Neighborhood (1980), an upper-middle class white protagonist returns to his birth neighborhood (Fordham Road and the Grand Concourse), and learns that even though the folks are poor, Hispanic and African-American, they are good people.
Who wrote 'City Boy: The Adventures of Herbie Bookbinder'?
A: Herman Wouk

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As the 1990s dawned, gamers predicted that competition from technologically superior systems such as the 16-bit Sega Mega Drive/Genesis would mean the immediate end of the NES’s dominance. Instead, during the first year of Nintendo's successor console the Super Famicom (named Super Nintendo Entertainment System outside Japan), the Famicom remained the second highest-selling video game console in Japan, outselling the newer and more powerful NEC PC Engine and Sega Mega Drive by a wide margin. The console remained popular in Japan and North America until late 1993, when the demand for new NES software abruptly plummeted. The final Famicom game released in Japan is Takahashi Meijin no Bōken Jima IV (Adventure Island IV), while in North America, Wario's Woods is the final licensed game. In the wake of ever decreasing sales and the lack of new software titles, Nintendo of America officially discontinued the NES by 1995. However, Nintendo kept producing new Famicom units in Japan until September 25, 2003, and continued to repair Famicom consoles until October 31, 2007, attributing the discontinuation of support to insufficient supplies of parts.
 How late did Nintendo continue to repair nonFamicom units?
A:
unanswerable