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Which of the following, if true, most helps to explain the urban planning consultants' position?
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Originally, scientists predicted small asteroids to be hard and rocky, as any loose surface material (called regolith) generated by impacts was expected to escape their weak gravity. Aggregate small bodies were not thought to exist, because the slightest sustained relative motion would cause them to separate. But observations and computer modeling are proving otherwise. Most asteroids larger than a kilometer are now believed to be composites of smaller pieces. Those imaged at high-resolution show evidence for copious regolith despite the weak gravity. Most of them have one or more extraordinarily large craters, some of which are wider than the mean radius of the whole body. Such colossal impacts would not just gouge out a crater-they would break any monolithic body into pieces. In short, asteroids larger than a kilometer across may look like nuggets of hard rock but are more likely to be aggregate assemblages-or even piles of loose rubble so pervasively fragmented that no solid bedrock is left.
The rubble hypothesis, proposed decades ago by scientists, lacked evidence, until the planetologist Shoemaker realized that the huge craters on the asteroid Mathilde and its very low density could only make sense together: a porous body such as a rubble pile can withstand a battering much better than an integral object. It will absorb and dissipate a large fraction of the energy of an impact; the far side might hardly feel a thing. At first, the rubble hypothesis may appear conceptually troublesome. The material strength of an asteroid is nearly zero, and the gravity is so low one is tempted to neglect that too. The truth is neither strength nor gravity can be ignored. Paltry though it may be, gravity binds a rubble pile together. And anybody who builds sandcastles knows that even loose debris can cohere. Oft-ignored details of motion begin to matter: sliding friction, chemical bonding, damping of kinetic energy, etc. We are just beginning to fathom the subtle interplay of these minuscule forces.
The size of an asteroid should determine which force dominates. One indication is the observed pattern of asteroidal rotation rates. Some collisions cause an asteroid to spin faster; others slow it down. If asteroids are monolithic rocks undergoing random collisions, a graph of their rotation rates should show a bell-shaped distribution with a statistical "tail" of very fast rotators. If nearly all asteroids are rubble piles, however, this tail would be missing, because any rubble pile spinning faster than once every two or three hours would fly apart. Recently, several astronomers discovered that all but five observed asteroids obey a strict rotation limit. The exceptions are all smaller than about 150 meters in diameter, with an abrupt cutoff for asteroids larger than 200 meters. The evident conclusion-that asteroids larger than 200 meters across are rubble piles-agrees with recent computer modeling of collisions. A collision can blast a large asteroid to bits, but those bits will usually be moving slower than their mutual escape velocity (the lowest velocity that a body must have in order to escape the orbit of a planet). Over several hours, gravity will reassemble all but the fastest pieces into a rubble pile.
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According to the rubble-pile hypothesis, an advantage conferred on an asteroid held together by weak forces is that it is
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Carvania is known to have a greater number of auto fatalities per capita than is the neighboring province of Cheviraul.Nonetheless, the number of collisions per capita that result in whiplash injuries is less than half those per capita of neighboring Cheviraul.?While such a finding implies that accidents occurring in Cheviraul are more likely to result in whiplash, there is another fact that should not be overlooked: unlike insurance providers in Cheviraul, those in Carvania do not pay premiums for automobile accident-related whiplash. Because many incidents of whiplash apparently go unreported in Carvania,?the actual number of incidents of whiplash in Carvania may be equal to, if not more than, the number of whiplash incidents in Cheviraul.
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In the argument given above, the two portions (the second and last sentences) play which of the following roles?
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Chopin the pianist has been greatly overshadowed by Chopin the composer. When Chopin the pianist is mentioned, it is his dreamy gaze and supple wrists (as well as countless female admirers gathered around the piano returning that same dreamy stare). But Chopin was a formidable pianist in his own right: after all, he was able to play, from start to finish, all twenty-four of his etudes, a set of pieces so demanding that even today`s great pianists feel taxed after performing them. Two things perhaps account for this oversight: for one, any pianist for whom no extant recordings exist is likely not to weather time well. Secondly, Chopin`s coeval and friend, Franz Liszt, was of such legendary prowess that Chopin himself wished he could play his own etudes the way Liszt did. Nevertheless, Chopin deserves to be remembered not just as a composer of challenging pieces but as a pianist capable of executing, with panache, these very pieces.
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Which of the following, if true, would cast the most doubt on the author`s contention regarding Chopin the pianist?
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That some dinosaurs could fly has long been established. That these very same species may have been able to walk--using their wings no less--has been far more controversial. However, the latest computer simulations suggest that the Pteranodon, a pterosaur with a wingspan of up to 25-feet long, while no rapid runner, was able to walk by retracting its wrists so as to walk on its palms. As to why the Pteranodon did so still remains unanswered.
One theory is that walking allowed it to forage for food on the ground. While this idea is enticing, proponents of this theory have yet to propose a reasonable answer as to what led to such a dramatic change in both physiology and locomotion. Another explanation is that flying was the evolutionary advantage conferred upon these creatures: in times of scarcity, a flying creature has access to a far greater abundance of fauna than does one limited to terrestrial movement.
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In the sentence, "Another explanation is that flying was the evolutionary advantage...", the author implies that
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As with impact structures, studies of African meteorites, as well as expeditions dedicated to the search for meteorites, have in the past generally been directed by non-African institutions. Obviously this has a lot to do with availability of funding for such work. It is, however, strongly felt that the widely noted lack of knowledge about the importance of the study of meteorites, of how to identify them, and of impact structures also contributes to this one-sided research situation.That said, a small number of scientists, for example at the Universities of Cape Town, Cairo, and of the Witwatersrand in Johannesburg, have in the past actively studied meteorites. While these institutions display requisite expertise for the task, they tend to work in isolation.
Meteorites, especially the iron and stony-iron meteorites, can be recognized by their metallic or semi-metallic appearance, frequently grooved surface structure, and strong magnetism. It is important that, when such material is discovered, all information, for example about its position, orientation on the surface, time of fall, and any visual observations made or sound heard, be meticulously recorded. Contamination from metal tools and chemical reagents must be avoided.
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It can be inferred that in contrast to the universities mentioned, most other African universities have
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To describe a style as Faulknerian or Beckettian or Nabakovian conjures up a host of literary moods, dispositions, and temperaments that coalesce to form an imprint as distinctive as a genetic code. This imprint, a trace-code of the authorial DNA, is our primary way of distinguishing the focused person who writes from that"bundle of accidents and incoherence that sits down at breakfast,"as Yeats somewhat comically described the writer of prose.
Yet however expert we become in deciphering the authorial code, we can never know the person who writes directly through her writing. This is an odder claim than it may initially appear, when you consider that the writer may divulge the most intimate secrets of her inner life through the very things she chooses to write about and by the way she writes about them. I want to make an even odder claim and insist that the person who writes never appears to us except as a figment of our imagination.
So this is what I am conveying in the case of Virginia Woolf, when I say I am"imagining"Virginia Woolf. I do not mean by this that I am making her up or attributing qualities to her that she may not indeed possess. Quite the opposite. It is Woolf who makes things up, who makes herself up-that is what it means, at a very fundamental level, to have an imagination and to use it in your writing. What I fabricate is an image of her that has slowly formed in my mind-a figment I call it-from the impressions, some more concrete than others, that I collect as I am reading her. This figment of the author may coexist with, but should never be mistaken for, the"figure of the author."I suspect it matters little to most readers whether the author as a literary figure is dead or alive or temporarily missing in action. On the other hand, the figment, being a subjective creation and not a rhetorical or literary personification, has a different reality and possesses a different importance in the mind of the reader. The figment of the author that attends us in our reading tends to be evanescent, but is never insubstantial in its impact upon us.
It was Woolf who alerted me to the inevitability of these figments, of their power to shadow and ultimately affect our intellectual and emotional relation to what we are reading. The first concrete piece of advice she gives the reader in "How Should One Read a Book?"is to try to become the author, but then, in a reversal that becomes more and more typical of her as she becomes confident in her own opinions that she can afford to qualify and, when necessary, disregard, she admits her inability to follow her own advice.
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How would the author of the passage rebut the contention that the reader can arbitrarily impute negative qualities or characteristics to the writer?
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Hightrail Park, a state park popular amongst weekend hikers, is suffering erosion along its trails. The primary cause are the many hikers, who looking for a quicker route between the switchbacks, cut between trails, thereby trampling undergrowth. Without grass and weeds, the land abutting the trails is more prone to erosion. To combat this problem, state park officials have placed yellow tape on those parts of the trail where erosion is most significant. State park officials expect that the park will not witness any erosion more extreme than what the park is currently witnessing.
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The argument above depends on which of the following assumptions?
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Dickens is so brilliant a stylist, his vision of the world so idiosyncratic and yet so telling, that one might say that his subject is his unique rendering of his subject, in an echo of Rothko`s statement,"The subject of the painting is the painting"-except of course, Dickens`s great subject was nothing so subjective or so exclusionary, but as much of the world as he could render. If Dickens`s prose fiction has"defects"-excesses of melodrama, sentimentality, contrived plots, and manufactured happy endings-these are the defects of his era, which for all his greatness Dickens had not the rebellious spirit to resist; he was at heart a crowd-pleaser, a theatrical entertainer, with no interest in subverting the conventions of the novel as his great successors D.H. Lawrence, James Joyce, and Virginia Woolf would have; nor did he contemplate the subtle and ironic counterminings of human relations in the way of George Eliot and Thomas Hardy, who brought to the English novel an element of nuanced psychological realism not previously explored. Yet among English writers Dickens is, as he once called himself, part-jesting and part-serious,"the inimitable."
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According to the passage, as a result of Dicken`s disinclination to subvert the conventions of his time, his prose fiction is characterized by
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Most educated people of the eighteenth century, such as the Founding Fathers, subscribed to Natural Rights Theory, the idea that every human being has a considerable number of innate rights, simply by virtue of being a human person. When the US Constitution was sent to the states for ratification, many at that time felt that the federal government outlined by the Constitution would be too strong, and that rights of individual citizens against the government had to be clarified. This led to the Bill of Rights, the first ten amendments, which were ratified at the same time as the Constitution. The first eight of these amendments list specific rights of citizens. Some leaders feared that listing some rights could be interpreted to mean that citizens didn't have other, unlisted rights. Toward this end, James Madison and others produced the Ninth Amendment, which states: the fact that certain rights are listed in the Constitution shall not be construed to imply that other rights of the people are denied.
Constitutional traditionalists interpret the Ninth Amendment as a rule for reading the rest of the constitution. They would argue that "Ninth Amendment rights" are a misconceived notion: the amendment does not, by itself, create federally enforceable rights. In particular, this strict reasoning would be opposed to the creation of any new rights based on the amendment. Rather, according to this view, the amendment merely protects those rights that citizens already have, whether they are explicitly listed in the Constitution or simply implicit in people's lives and in American tradition.
More liberal interpreters of the US Constitution have a much more expansive view of the Ninth Amendment. In their view, the Ninth Amendment guarantees to American citizens a vast universe of potential rights, some of which we have enjoyed for two centuries, and others of which the Founding Fathers could not possibly have conceived. These scholars point out that some rights, such as voting rights of women or minorities, were not necessarily viewed as rights by the majority of citizens in late eighteenth century America, but are taken as fundamental and unquestionable in modern America. While those rights cited are protected specifically by other amendments and laws, the argument asserts that other unlisted right also could evolve from unthinkable to perfectly acceptable, and the Ninth Amendment would protect these as-yet-undefined rights.
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In the view of James Madison and the other Founding Fathers, the Ninth Amendment limits the power of the central federal government by
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In the 1860s, the German philologist Lazarus Geiger proposed that the subdivision of color always follows the same hierarchy. The simplest color lexicons (such as the DugermDani language of New Guinea) distinguish only black/dark and white/light. The next color to be given a separate word by cultures is always centered on the red part of the visible spectrum. Then, according to Geiger, societies will adopt a word corresponding to yellow, then green, then blue. Lazarus`s color hierarchy was forgotten until restated in almost the same form in 1969 by Brent Berlin, an anthropologist, and Paul Kay, a linguist, when it was hailed as a major discovery in modern linguistics. It showed a universal regularity underlying the apparently arbitrary way language is used to describe the world.
Berlin and Kay`s hypothesis has since fallen in and out of favor, and certainly there are exceptions to the scheme they proposed. But the fundamental color hierarchy, at least in the early stages (black/white, red, yellow/green, blue) remains generally accepted. The problem is that no one could explain why this ordering of color exists. Why, for example, does the blue of sky and sea, or the green of foliage, not occur as a word before the far less common red?
There are several schools of thought about how colors get named. "Nativists,"who include Berlin and Kay, argue that the way in which we attach words to concepts is innately determined by how we perceive the world. In this view our perceptual apparatus has evolved to ensure that we make"sensible"-that is, useful-choices of what to label with distinct words: we are hardwired for practical forms of language."Empiricists,"in contrast, argue that we don`t need this innate programming, just the capacity to learn the conventional (but arbitrary) labels for things we can perceive.
In both cases, the categories of things to name are deemed"obvious": language just labels them. But the conclusions of Loreto and colleagues fit with a third possibility: the"culturist"view, which says that shared communication is needed to help organize category formation, so that categories and language co-evolve in an interaction between biological predisposition and culture. In other words, the starting point for color terms is not some inevitably distinct block of the spectrum, but neither do we just divide up the spectrum in some arbitrary fashion, because the human eye has different sensitivity to different parts of the spectrum. Given this, we have to arrive at some consensus, not just on which label to use, but on what is being labeled.
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