Problem: New or "virgin" heavy/heavyweight (180220 g) vinyl is commonly used for modern audiophile vinyl releases in all genres. Many collectors prefer to have heavyweight vinyl albums, which have been reported to have better sound than normal vinyl because of their higher tolerance against deformation caused by normal play. 180 g vinyl is more expensive to produce only because it uses more vinyl. Manufacturing processes are identical regardless of weight. In fact, pressing lightweight records requires more care. An exception is the propensity of 200 g pressings to be slightly more prone to non-fill, when the vinyl biscuit does not sufficiently fill a deep groove during pressing (percussion or vocal amplitude changes are the usual locations of these artifacts). This flaw causes a grinding or scratching sound at the non-fill point.
Would would a non filled area in a vinyl press cause when listening to a record?
The answer is the following: grinding or scratching sound

Problem: Expansive interior light has been a feature of Gothic cathedrals since the first structure was opened. The metaphysics of light in the Middle Ages led to clerical belief in its divinity and the importance of its display in holy settings. Much of this belief was based on the writings of Pseudo-Dionysius, a sixth-century mystic whose book, The Celestial Hierarchy, was popular among monks in France. Pseudo-Dionysius held that all light, even light reflected from metals or streamed through windows, was divine. To promote such faith, the abbot in charge of the Saint-Denis church on the north edge of Paris, the Abbot Suger, encouraged architects remodeling the building to make the interior as bright as possible.
Who held the belief that all light, including light reflected from walls and surfaces was divine?
The answer is the following: Pseudo-Dionysius

Problem: For the 2011 season, the Philadelphia Soul, Kansas City Brigade, San Jose SaberCats, New Orleans VooDoo, and the Georgia Force returned to the AFL after having last played in 2008. However, the Grand Rapids Rampage, Colorado Crush, Columbus Destroyers, Los Angeles Avengers, and the New York Dragons did not return. The league added one expansion team, the Pittsburgh Power. Former Pittsburgh Steelers wide receiver Lynn Swann was one of the team's owners. It was the first time the AFL returned to Pittsburgh since the Pittsburgh Gladiators were an original franchise in 1987 before becoming the Tampa Bay Storm. The Brigade changed its name to the Command, becoming the Kansas City Command. Even though they were returning teams, the BossierShreveport Battle Wings moved to New Orleans as the Voodoo, the identity formerly owned by New Orleans Saints owner Tom Benson. The Alabama Vipers moved to Duluth, Georgia to become the new Georgia Force (the earlier franchise of that name being a continuation of the first Nashville Kats franchise). On October 25, 2010 the Oklahoma City Yard Dawgz did not return. The Milwaukee Iron also changed names to the Milwaukee Mustangs, the name of Milwaukee's original AFL team that had existed from 1994 to 2001.
Along with the Grand Rapids Rampage, Colorado Crush, Columbus Destroyers and Los Angeles Avengers, what team did not return for the 2011 season?
The answer is the following: New York Dragons

Problem: The U.S. dollar was created by the Constitution and defined by the Coinage Act of 1792. It specified a "dollar" to be based in the Spanish milled dollar and of 371 grains and 4 sixteenths part of a grain of pure or 416 grains (27.0 g) of standard silver and an "eagle" to be 247 and 4 eighths of a grain or 270 grains (17 g) of gold (again depending on purity). The choice of the value 371 grains arose from Alexander Hamilton's decision to base the new American unit on the average weight of a selection of worn Spanish dollars. Hamilton got the treasury to weigh a sample of Spanish dollars and the average weight came out to be 371 grains. A new Spanish dollar was usually about 377 grains in weight, and so the new U.S. dollar was at a slight discount in relation to the Spanish dollar.
Who made the decision to base the American Unit on the weight on the Spanish dollar?
The answer is the following:
Alexander Hamilton