Problem: Northwestern University:

Sherman Ave is a humor website that formed in January 2011. The website often publishes content about Northwestern student life, and most of Sherman Ave's staffed writers are current Northwestern undergraduate students writing under pseudonyms. The publication is well known among students for its interviews of prominent campus figures, its "Freshman Guide", its live-tweeting coverage of football games, and its satiric campaign in autumn 2012 to end the Vanderbilt University football team's clubbing of baby seals.

What is the name Northwestern's humor website formed in 2012?
---
A: unanswerable


Problem: The state seemed at relative calm compared to the rest of the country due to its close ties to the United States until 1841. In 1843 the possibility of war was anticipated by the state government and it began to reinforce the defense lines along the political boundary with Texas. Supplies of weapons were sent to fully equip the military and took steps to improve efficiency at the presidios. Later, the Regimen for the Defenders of the Border were organized by the state which were made up of: light cavalry, four squads of two brigades, and a small force of 14 men and 42 officials at the price of 160,603 pesos per year. During the beginning of the 1840s, private citizens took it upon themselves to stop the commercial caravans of supplies from the United States, but being so far away from the large suppliers in central Mexico the caravan was allowed to continue in March 1844. Continuing to anticipate a war, the state legislature on July 11, 1846 by decree enlisted 6,000 men to serve along the border; during that time Ángel Trías quickly rose to power by portraying zealous anti-American rhetoric. Trías took the opportunity to dedicate important state resources to gain economic concessions from the people and loans from many municipalities in preparation to defend the state; he used all the money he received to equip and organize a large volunteer militia. Ángel Trías took measures for state self-dependence in regards to state militia due to the diminishing financial support from the federal government.
In which year did the state begin to reinforce defense?
---
Answer: 1843


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
General Ridgway was appointed Supreme Commander, Korea; he regrouped the UN forces for successful counterattacks, while General James Van Fleet assumed command of the U.S. Eighth Army. Further attacks slowly depleted the PVA and KPA forces; Operations Courageous (23–28 March 1951) and Tomahawk (23 March 1951) were a joint ground and airborne infilltration meant to trap Chinese forces between Kaesong and Seoul. UN forces advanced to "Line Kansas", north of the 38th parallel. The 187th Airborne Regimental Combat Team's ("Rakkasans") second of two combat jumps was on Easter Sunday, 1951, at Munsan-ni, South Korea, codenamed Operation Tomahawk. The mission was to get behind Chinese forces and block their movement north. The 60th Indian Parachute Field Ambulance provided the medical cover for the operations, dropping an ADS and a surgical team and treating over 400 battle casualties apart from the civilian casualties that formed the core of their objective as the unit was on a humanitarian mission.
What was the goal of Operation Tomahawk?
A: get behind Chinese forces and block their movement north


Context and question: Stepper motors can be rotated to a specific angle in discrete steps with ease, and hence stepper motors are used for read/write head positioning in computer floppy diskette drives. They were used for the same purpose in pre-gigabyte era computer disk drives, where the precision and speed they offered was adequate for the correct positioning of the read/write head of a hard disk drive. As drive density increased, the precision and speed limitations of stepper motors made them obsolete for hard drives—the precision limitation made them unusable, and the speed limitation made them uncompetitive—thus newer hard disk drives use voice coil-based head actuator systems. (The term "voice coil" in this connection is historic; it refers to the structure in a typical (cone type) loudspeaker. This structure was used for a while to position the heads. Modern drives have a pivoted coil mount; the coil swings back and forth, something like a blade of a rotating fan. Nevertheless, like a voice coil, modern actuator coil conductors (the magnet wire) move perpendicular to the magnetic lines of force.)
What do newer computer drives use instead of stepper motors?
Answer: voice coil-based head actuator systems


Question: Only Umayyad ruler (Caliphs of Damascus), Umar ibn Abd al-Aziz, is unanimously praised by Sunni sources for his devout piety and justice. In his efforts to spread Islam he established liberties for the Mawali by abolishing the jizya tax for converts to Islam. Imam Abu Muhammad Adbullah ibn Abdul Hakam stated that Umar ibn Abd al-Aziz also stopped the personal allowance offered to his relatives stating that he could only give them an allowance if he gave an allowance to everyone else in the empire. Umar ibn Abd al-Aziz was later poisoned in the year 720. When successive governments tried to reverse Umar ibn Abd al-Aziz's tax policies it created rebellion.
Is there an answer to this question: What unanimously praised most of the Umayyad rulers?

Answer: unanswerable


Question: On the other hand, certain financial techniques can reduce the impact of such purchases on the currency. One is sterilisation, in which highly valued assets are sold at the same time that the weaker assets are purchased, which keeps the money supply neutral. Another technique is simply to accept the bad assets as long-term collateral (as opposed to short-term repo swaps) to be held until their market value stabilises. This would imply, as a quid pro quo, adjustments in taxation and expenditure in the economies of the weaker states to improve the perceived value of the assets.
Is there an answer to this question: How can weaker states improve the surface value of their assets?

Answer:
adjustments in taxation and expenditure in the economies