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Instances of "galactic cannibalism"—mergers in which large galaxies completely consume smaller ones—may be fairly common. Tidal forces produced by the Milky Way's powerful gravity, for example, appear to be dismantling and engulfing a dwarf galaxy in the constellation Sagittarius, producing large clumps and streamers of stars connecting the two galaxies. Astronomers have also observed two dense clusters of stars and gas at the heart of the Andromeda galaxy, an apparent "double nucleus" that may contain the remnant of a cannibalized dwarf galaxy. But this twin-lobed appearance could also be created by two parts of a single nucleus bisected by a lane of dust. Scientists believe that only about 25 percent of such apparent double nuclei actually represent galactic cannibalism. Many of the rest result from the illusion of proximity that occurs when objects at different distances appear along the same line of sight: others consist of debris from galactic "collisions." in which one galaxy has passed through another without merging, causing waves of new star formation.
The primary purpose of the passage is to
A certain company made neither a profit nor a loss on the first 1.000 widgets it sold and made a profit of $0.50 on each widget it sold after the first 1.000. If the company's total profit from the sale of widgets was p dollars, what is the number of widgets it sold in terms of p ?
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In the late eighteenth and early nineteenth centuries, during the period of the American Revolution and the early republic, political poems appeared regularly in newspapers and pamphlets. commenting on the issues and controversies engaging the new nation. Given the sheer number of poems that engaged explicitly with politics, one might wonder why the form has remained largely ignored by scholars of early American literature even as many other once obscure forms—sentimental novels, diaries, travelogues, belles letters—have enjoyed unprecedented scholarly interest in recent decades. Part of the reason may stem from frustrations involved with reading poems that are so highly topical—often requiring, even as a condition of first-level comprehension, a familiarity with names and references that, while wholly recognizable in their own time, are obscure to modem readers. Yet beyond this is the fact that American political verse from the eighteenth and early nineteenth centuries has never fully shaken off the verdict, delivered by its earliest generation of scholarly readers. that it is simply unworthy of serious attention as literature. Even the term commonly used to describe it—"verse." as opposed to "poetry"— suggests an occasional or forgettable, rather than enduring, form of expression, not quite deserving the designation of poetry. Nor was such verse considered by early critics as worthy of the designation "American." as the tendency of eighteenth-century American poets to model their works on those of British precursors suggested an unforgivable failure, as one critic described it. to declare their "literary independence" from Britain.
Though_________in his musical expression, the American jazz bassist and composer Charles Mingus
eventually developed a personal voice that proved to be much more than a simple mixture of jazz styles.