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Page "Total internal reflection" ¶ 3
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can and only
There's only one way they can get out now and that's through the Gap -- if we ride hard we can take them ''.
And any sequence can not only change its positions in the work but can even be eliminated from it altogether.
The most effective political inventions seem to make maximum use of natural harbors and are aware that restraining breakwaters can play only a minor part in the whole scheme.
We have staved off a war and, since our behavior has involved all these elements, we can only keep adding to our ritual without daring to abandon any part of it, since we have not the slightest notion which parts are effective.
One can only speak of what is in front of him, and that now is simply the mess ''.
In scope and power it can only be compared to Tolstoy's War And Peace.
Surrounded by crime and violence everywhere, the `` hardboiled '' private eye can retain his purity only through a life of self-imposed isolation.
We assume for this illustration that the size of the land plots is so great that the distance between dwellings is greater than the voice can carry and that most of the communication is between nearest neighbors only, as shown in Figure 2.
Since the hazards of poor communication are so great, p can be justified as a habitable site only on the basis of unusual productivity such as is made available by a waterfall for milling purposes, a mine, or a sugar maple camp.
Here there may be an analogy with cancer: we can detect cancers by their rapidly accelerating growth, determinable only when related to the more normal rate of healthy growth.
So we are faced with a vast network of amorphous entities perpetuating themselves in whatever manner they can, without regard to the needs of society, controlling society and forcing upon it a regime representing only the corporation's needs for survival.
Avoiding runaway technology can be done only by assuring a humane society ; ;
This means that the inception of change itself can begin only when the factors conducive to change have already become more powerful than those anchoring the existent form in being.
The most reaction can achieve is stasis, and a stasis that can be maintained only by the expenditure of an effort which ultimately exhausts itself.
If our sincerity is granted, and it is granted, the discrepancy can only be explained by the fact that we have come to believe hearsay and legend about ourselves in preference to an understanding gained by earnest self-examination.
Analogously, anyone who argues that Einstein's theory of gravitation is simpler than Newton's, must say rather more to explain how it is that the latter is mastered by student-physicists, while the former can be managed ( with difficulty ) only by accomplished experts.
Moreover, progress in a national transformation can be only gradually earned ; ;
As a nation we can successfully pursue these objectives only from a position of broadly based strength.
It is, however, a disarming disguise, or perhaps a shield, for not only has Mercer proved himself to be one of the few great lyricists over the years, but also one who can function remarkably under pressure.
In fact, I can only say this seems to me to follow from a wide, continuous, and properly guided exposure to literary art.
If it is not one of his best books, it can only be considered unsatisfactory when compared with his own Garibaldi.
In my experience the assurance of forgiveness comes only when I have confessed to the wronged one and have made as full reparation as I can devise.

can and occur
Once we have made clear that we are genuinely concerned with a country's development potential, we can be blunt in suggesting the technical conditions that must be met for development to occur.
Since the writer had not noticed this characteristic in married students scattered throughout the various sections previous to this experiment, nor, as a matter of fact, in those who were continuing in `` single sections '', he can only conclude that there must have been something `` contagious '' within the specific group which caused this to occur.
Thus, for non-negative changes in the basic wage rate, the industry becomes the active wage-setter, since any increase in the basic wage rate can occur only by reason of industry acquiescence.
If the coating becomes still thicker, a peeling type failure finally can occur.
It should be recalled that these three mechanisms can occur on the same coating deposited upon the same substrate merely as a function of changes in coatings thickness.
One seed-to-seed life cycle for an annual can occur in as little as a month in some species, though most last several months.
This is not the most general situation of a Cartesian product of a family of sets, where a same set can occur more than once as a factor ; however, one can focus on elements of such a product that select the same element every time a given set appears as factor, and such elements correspond to an element of the Cartesian product of all distinct sets in the family.
Anxiety is a generalized mood that can occur without an identifiable triggering stimulus.
In the polytonic orthography of Greek, alpha, like other vowel letters, can occur with several diacritic marks: any of three accent symbols (), and either of two breathing marks (), as well as combinations of these.
The three types of ataxia have overlapping causes, and therefore can either coexist or occur in isolation.
In theory it can occur only in nuclei somewhat heavier than nickel ( element 28 ), where overall binding energy per nucleon is no longer a minimum, and the nuclides are therefore unstable toward spontaneous fission-type processes.
Heavy snowfall can occur, such as during the New Year's Eve 1963 snowstorm and the 1993 Storm of the Century.
The usual symptoms are cough and sputum production, and secondary infections can occur.
Allergic skin reactions can also occur.
Adiabatic processes can occur if the container of the system has thermally-insulated walls or the process happens in an extremely short time, so that there is no opportunity for significant heat exchange.
Similar to the United States, there is a wide range of the type of Assault that can occur.
It can also occur when a person attempts to apply such force, or threatens to do so, without the consent of the other person.
However, he thinks that these too occur out of necessity since an outside observer can see the same regularity that he would in a purely physical system.
This means that opaque ( if not minimal ) contrasts can occur in languages like Italian ( with the i-like sound of piede ' foot ', appearing in the nucleus:, and that of piano ' slow ', appearing in the syllable onset: ) and Spanish ( with a near minimal pair being abyecto ' abject ' and abierto ' opened ').
Thunderstorms can occur between October and March, and annual rainfall is 623 millimetres ( 24. 5 in ), with rainfall highest in spring and summer and lowest in winter.
When used appropriately, opioids and similar narcotic analgesics are otherwise safe and effective, however risks such as addiction and the body becoming used to the drug ( tolerance ) can occur.
Antibodies can occur in two physical forms, a soluble form that is secreted from the cell, and a membrane-bound form that is attached to the surface of a B cell and is referred to as the B cell receptor ( BCR ).
The carrier is never shut off altogether ; this is to ensure that intercarrier sound demodulation can still occur.
Failure of the adhesive joint can occur in different locations

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