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With the grand ambition of sending unbreakable coded messages, some physicists are using exotic tools—quantum mechanics and streams of individual photons—to shut out (i)_____. But a wire and a few resistors may (ii)_____ a message as securely, according to a physicist who claims to have devised a simple and uncrackable scheme. The idea shows that more (iii)_____ methods might compete with budding quantum cryptography.
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Contrary to popular myth, cockroaches are not especially tough or radiation resistant; indeed, they are pretty _____ as insects go.
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Scientific discovery calls for a difficult balance: intrepid advocacy of new ideas must often be _____ by the results of self-imposed trials.
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Reuters are not against _____ noteworthy architecture but suggests a cap on the amount to be protected at any one time: if you want to protect another ancient building, one should come off the list.
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Jaime Javier Rodriguez notes that popular art forms often conceal a daunting complexity: frequently what appears _____ becomes intricate and challenging when closely examined.
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Although not enough to _____ the conventional view of the manuscript`s provenance, the new study was thought to have weakened the prevailing theory considerably.
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The economist argued that however much the government might trumpet the value of _____, it had been as bold as any other in its spending programs.
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She knew well, from experience with hundreds of hired crew members on her boats, how (i)_____ attitudes can be: one negative influence can impel an otherwise (ii)_____ member of a crew to quit.
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Recently the novelist has (i)_____ the radically experimental forms with which he made his reputation in favor of more (ii)_____ narratives, fencing in and turning an imagination meant to run wild.
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It is plausible to regard a collection of letters spanning youth and old age as (i)_____ of autobiography: the precession of characters who inhabit a life and a chronology of incidents turn up reliably in either form. Yet autobiography, even when ostensibly steeped in candor, tends toward (ii)_____ through later perspectives, afterwords, and second thoughts, whereas letters have an undeniable (iii)_____, offering select glimpses of the fought and living moment.
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The nature of our recollection is (i)_____. One memory can seem (ii)_____ whereas another must be coaxed out of our brain little by little. Although a moment that excites our emotions is more likely to be recorded than a (iii)_____ experience, the sensory qualities of an event also play a part in how vividly and accurately we remember it.
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Many theorists believe that measures to prevent industrial pollution necessarily increase production costs, but several recent reports document innovations that _______________ environmental harm while also delivering economic benefits.
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A closer examination of the author's footnotes explains the datedness of his argument: he has ignore most of the recent work in the field, drawing instead mainly on research that is now decidedly _____.
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The environmental threat posed by the New Zealand mud snail, an invasive species, is _____ by the snail's small size, which facilitates its spread across watersheds through human activity.
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Although the Kuiper Belt—the icy region of the solar system where Pluto orbits—was once much more crowded, today it has such a low density of objects that collisions between them are __________.
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Geologists suggest that as the most productive oil reservoirs begin to dry up, the expensive cost and high risk of drilling in the marginal area become less _____ and more acceptable.
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Evidence suggest that populations of migratory birds in both the New and Old Worlds have (i)_____, a (ii)_____ that carries the potential for significant ecological damage far beyond the shrinking numbers of the birds themselves.
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Even though company`s CEO professes to be (i)_____ and urges the deal forward, its investors are unlikely to be so (ii)_____ about its prospect. Many were uncomfortable at the way the corporation was forced to spend much of last year expansion, and this new venture is potentially even more risky.
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Among the most popular Currier&levs lithographic prints in nineteenth-century America were bird`s-eye views of great cities such as New York, Chicago, and San Francisco. These were edited into books, and the cities` (i)_____ meant that new views were (ii)_____ for successive editions.
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Dirac may have (i)_____ the company of other theoretical physicals, but he often (ii)_____, rarely (iii)_____ group discussions and almost never collaborating with others in his own work.
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