Word: fractionation
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...crude extract from this first step was purified and separated into fractions by treatment with various chemicals, and each fraction was tested for sex attractiveness. A slender glass rod was touched to the sample and brought near the antennae of a male moth held in wing clips. If he fluttered and made mating motions, the sample was adjudged to contain the sexual lure of the 500,000 martyred virgins...
...miracle of the transistor is that it can do virtually everything the vacuum tubes-for nearly 40 years the mainstay of the communications industry-could do, and do it better. It is more reliable, sturdier, and only a fraction of the tube's size. Today a full third of Bell Labs' scientists are working on the transistor and the whole new family of "solid state" electronic devices it has spawned. The transistor not only made space exploration possible; it also ushered in the new technique of miniaturization, thus made hundreds of new products possible...
...second quarter. With all the recent talk of recession, they had begun to fear that expenditures for plant and equipment might fall off later in the year. But this week, to their relief, new figures showed that expenditures are likely to run at a flat $37 billion, only a fraction below what had been earlier expected. Department-store sales also continued strong, running 4% ahead of last year for the last reported week, 2% ahead for the year...
...that high-pitched notes came through to him tremulous and distorted), Ives led a demanding double life: he composed on weekends, during his lunch hours and en route from New York to his weekend retreat in Connecticut. Somehow, he turned out a tremendous quantity of work, only a fraction of which has survived (five symphonies, some violin and piano music, more than 120 songs, and the fine choral work, Lincoln the Great Commoner...
Each burst lasts only one second, but during the flight the protons circle the track 300,000 times and travel 150,000 miles. At the end of their trip they are moving at an infinitesimal fraction below the speed of light. Since Einstein's relativity requires that mass must increase with speed, the protons gain 30 times the mass that they have while at rest...