Problem: Antenna (radio):

One example of omnidirectional antennas is the very common vertical antenna or whip antenna consisting of a metal rod (often, but not always, a quarter of a wavelength long). A dipole antenna is similar but consists of two such conductors extending in opposite directions, with a total length that is often, but not always, a half of a wavelength long. Dipoles are typically oriented horizontally in which case they are weakly directional: signals are reasonably well radiated toward or received from all directions with the exception of the direction along the conductor itself; this region is called the antenna blind cone or null.

What type of antenna would most likely be a half a wavelength long?
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A: dipole


Problem: When Link enters the Twilight Realm, the void that corrupts parts of Hyrule, he transforms into a wolf.[h] He is eventually able to transform between his Hylian and wolf forms at will. As a wolf, Link loses the ability to use his sword, shield, or any secondary items; he instead attacks by biting, and defends primarily by dodging attacks. However, "Wolf Link" gains several key advantages in return—he moves faster than he does as a human (though riding Epona is still faster) and digs holes to create new passages and uncover buried items, and has improved senses, including the ability to follow scent trails.[i] He also carries Midna, a small imp-like creature who gives him hints, uses an energy field to attack enemies, helps him jump long distances, and eventually allows Link to "warp" to any of several preset locations throughout the overworld.[j] Using Link's wolf senses, the player can see and listen to the wandering spirits of those affected by the Twilight, as well as hunt for enemy ghosts named Poes.[k]
Link's wolf form is faster than what other form?
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Answer: human


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Sichuan came under the firm control of a Chinese central government during the Sui dynasty, but it was during the subsequent Tang dynasty where Sichuan regained its previous political and cultural prominence for which it was known during the Han. Chengdu became nationally known as a supplier of armies and the home of Du Fu, who is sometimes called China's greatest poet. During the An Lushan Rebellion (755-763), Emperor Xuanzong of Tang fled from Chang'an to Sichuan. The region was torn by constant warfare and economic distress as it was besieged by the Tibetan Empire.
Who was known as China's greatest poet and lived in Tang?
A: unanswerable


Context and question: The Bronx has often shown striking differences from other boroughs in elections for Mayor. The only Republican to carry the Bronx since 1914 was Fiorello La Guardia in 1933, 1937 and 1941 (and in the latter two elections, only because his 30-32% vote on the American Labor Party line was added to 22-23% as a Republican). The Bronx was thus the only borough not carried by the successful Republican re-election campaigns of Mayors Rudolph Giuliani in 1997 and Michael Bloomberg in 2005. The anti-war Socialist campaign of Morris Hillquit in the 1917 mayoral election won over 31% of the Bronx's vote, putting him second and well ahead of the 20% won by the incumbent pro-war Fusion Mayor John P. Mitchel, who came in second (ahead of Hillquit) everywhere else and outpolled Hillquit city-wide by 23.2% to 21.7%.
Who was the only Republican Mayor candidate to win the Bronx since 1914?
Answer: Fiorello La Guardia


Question: In Book 11 of St. Augustine's Confessions, he ruminates on the nature of time, asking, "What then is time? If no one asks me, I know: if I wish to explain it to one that asketh, I know not." He goes on to comment on the difficulty of thinking about time, pointing out the inaccuracy of common speech: "For but few things are there of which we speak properly; of most things we speak improperly, still the things intended are understood."  But Augustine presented the first philosophical argument for the reality of Creation (against Aristotle) in the context of his discussion of time, saying that knowledge of time depends on the knowledge of the movement of things, and therefore time cannot be where there are no creatures to measure its passing (Confessions Book XI ¶30; City of God Book XI ch.6).
Is there an answer to this question: Who presented the first philosophical argument for the reality of Creation? 

Answer: Augustine


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Another energy-related concept is called the Lagrangian, after Joseph-Louis Lagrange. This formalism is as fundamental as the Hamiltonian, and both can be used to derive the equations of motion or be derived from them. It was invented in the context of classical mechanics, but is generally useful in modern physics. The Lagrangian is defined as the kinetic energy minus the potential energy. Usually, the Lagrange formalism is mathematically more convenient than the Hamiltonian for non-conservative systems (such as systems with friction).
Who is the Lagrangian named after?
A:
Joseph-Louis Lagrange