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The effective area or effective aperture of a receiving antenna expresses the portion of the power of a passing electromagnetic wave which it delivers to its terminals, expressed in terms of an equivalent area. For instance, if a radio wave passing a given location has a flux of 1 pW / m2 (1012 watts per square meter) and an antenna has an effective area of 12 m2, then the antenna would deliver 12 pW of RF power to the receiver (30 microvolts rms at 75 ohms). Since the receiving antenna is not equally sensitive to signals received from all directions, the effective area is a function of the direction to the source.
What is the portion of something that is reached by the radio transmission called?
A: aperture

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Philosophy has become an increasingly academic discipline. More of its practitioners lament this situation than occurs with the sciences; nonetheless most new philosophical work appears in academic journals. Major philosophers through historyPlato, Aristotle, Socrates, Augustine, Descartes, Kierkegaard, Nietzschehave become as canonical as any writers. Some recent philosophy works are argued to merit the title "literature", but much of it does not, and some areas, such as logic, have become extremely technical to a degree similar to that of mathematics.
What aspect of modern academic philosophy is less literary than technical in nature?
A: logic

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The center of all mystical experience is, of course, Christ. English Dominicans sought to gain a full knowledge of Christ through an imitation of His life. English mystics of all types tended to focus on the moral values that the events in Christ's life exemplified. This led to a "progressive understanding of the meanings of Scripture--literal, moral, allegorical, and anagogical"that was contained within the mystical journey itself. From these considerations of Scripture comes the simplest way to imitate Christ: an emulation of the moral actions and attitudes that Jesus demonstrated in His earthly ministry becomes the most significant way to feel and have knowledge of God.
What was not at the center of all mystical experiences?
A: unanswerable

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The heavy infantry of the maniples were supported by a number of light infantry and cavalry troops, typically 300 horsemen per manipular legion. The cavalry was drawn primarily from the richest class of equestrians. There was an additional class of troops who followed the army without specific martial roles and were deployed to the rear of the third line. Their role in accompanying the army was primarily to supply any vacancies that might occur in the maniples. The light infantry consisted of 1,200 unarmoured skirmishing troops drawn from the youngest and lower social classes. They were armed with a sword and a small shield, as well as several light javelins.
What type of infantry joined light, and the cavalry in battle?
A:
heavy infantry