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Two major hardware revisions of the Xbox 360 have succeeded the original models; the Xbox 360 S (also referred to as the "Slim") replaced the original "Elite" and "Arcade" models in 2010. The S model carries a smaller, streamlined appearance with an angular case, and utilizes a redesigned motherboard designed to alleviate the hardware and overheating issues experienced by prior models. It also includes a proprietary port for use with the Kinect sensor. The Xbox 360 E, a further streamlined variation of the 360 S with a two-tone rectangular case inspired by Xbox One, was released in 2013. In addition to its revised aesthetics, Xbox 360 E also has one fewer USB port and no longer supports S/PDIF.
How many major hardware revisions has the 360 had?
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The answer: Two

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Washington University has over 300 undergraduate student organizations on campus. Most are funded by the Washington University Student Union, which has a $2 million plus annual budget that is completely student-controlled and is one of the largest student government budgets in the country. Known as SU for short, the Student Union sponsors large-scale campus programs including WILD (a semesterly concert in the quad) and free copies of the New York Times, USA Today, and the St. Louis Post-Dispatch through The Collegiate Readership Program; it also contributes to the Assembly Series, a weekly lecture series produced by the University, and funds the campus television station, WUTV, and the radio station, KWUR. KWUR was named best radio station in St. Louis of 2003 by the Riverfront Times despite the fact that its signal reaches only a few blocks beyond the boundaries of the campus. There are 11 fraternities and 9 sororities, with approximately 35% of the student body being involved in Greek life. The Congress of the South 40 (CS40) is a Residential Life and Events Programming Board, which operates outside of the SU sphere. CS40's funding comes from the Housing Activities Fee of each student living on the South 40.
What percentage of students are involved in Greek life at Washington University?
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The answer: 35%

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Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.
What does DC stand for?
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The answer: direct current

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The Jesuit China missions of the 16th and 17th centuries "learned to appreciate the scientific achievements of this ancient culture and made them known in Europe. Through their correspondence European scientists first learned about the Chinese science and culture." Western academic thought on the history of Chinese technology and science was galvanized by the work of Joseph Needham and the Needham Research Institute. Among the technological accomplishments of China were, according to the British scholar Needham, early seismological detectors (Zhang Heng in the 2nd century), the water-powered celestial globe (Zhang Heng), matches, the independent invention of the decimal system, dry docks, sliding calipers, the double-action piston pump, cast iron, the blast furnace, the iron plough, the multi-tube seed drill, the wheelbarrow, the suspension bridge, the winnowing machine, the rotary fan, the parachute, natural gas as fuel, the raised-relief map, the propeller, the crossbow, and a solid fuel rocket, the multistage rocket, the horse collar, along with contributions in logic, astronomy, medicine, and other fields.
What type of bridge originated in China?
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The answer:
suspension