Article: Almost two thousand years after Plato, Rene Descartes also proposed a geometrically based alternative theory of atomism, without the problematic nothingeverything dichotomy of void and atom. Although Descartes agreed with the contemporary position, that a vacuum does not occur in nature, the success of his namesake coordinate system and more implicitly, the spatialcorporeal component of his metaphysics would come to define the philosophically modern notion of empty space as a quantified extension of volume. By the ancient definition however, directional information and magnitude were conceptually distinct. With the acquiescence of Cartesian mechanical philosophy to the "brute fact" of action at a distance, and at length, its successful reification by force fields and ever more sophisticated geometric structure, the anachronism of empty space widened until "a seething ferment" of quantum activity in the 20th century filled the vacuum with a virtual pleroma.

Question: Whose work with metaphysics would come to define the notion of empty space?
Ans: Descartes

Article: 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.

Question: How does sterilisation help to keep the money flow even?
Ans: highly valued assets are sold at the same time that the weaker assets are purchased

Article: Adult contemporary traces its roots to the 1960s easy listening format, which adopted a 70-80% instrumental - 20-30% vocal mix. A few offered 90% instrumentals, and a handful were entirely instrumental. The easy listening format, as it was first known, was born of a desire by some radio stations in the late 1950s and early 1960s to continue playing current hit songs but distinguish themselves from being branded as "rock and roll" stations. Billboard first published the Easy Listening chart July 17, 1961, with 20 songs; the first number one was "Boll Weevil Song" by Brook Benton. The chart described itself as "not too far out in either direction".

Question: From what decade of easy listening radio does adult contemporary trace its heritage?
Ans: 1960s

Article: In their attempt to ensure white supremacy decades after emancipation, in the early 20th century, most southern states created laws based on the one-drop rule, defining as black, persons with any known African ancestry. This was a stricter interpretation than what had prevailed in the 19th century; it ignored the many mixed families in the state and went against commonly accepted social rules of judging a person by appearance and association. Some courts called it "the traceable amount rule." Anthropologists called it an example of a hypodescent rule, meaning that racially mixed persons were assigned the status of the socially subordinate group.

Question: What was the rule in the 1800s called?
Ans:
the traceable amount rule