Word: alphabets
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Dates: during 1960-1969
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...alphabet-soup world of subatomic physics, only one letter was missing. The equations of quantum theory had indicated the existence of 17 pairs of basic "building blocks"-particles and antiparticles, balanced by opposite electrical charges, and physicists had long since spotted and labeled the 17 normal particles. Once they got their huge, high-energy accelerators working in the late 1950s, they matched 16 of these bits of matter with their antiparticle mates. All that remained was the elusive (anti-Xi-zero). In September 1961, a group of Yale University and Brookhaven National Laboratory physicists set out to find...
...verifying the existence of anti-Xi-zero, the Yale-Brookhaven team- completed the alphabet of the first family of subatomic particles. But during their long search, other physicists also were busy. Several new arrangements of fundamental building blocks have already been postulated, and some of them leave gaps that may be filled by still more particles. The long search seems certain to continue...
...attack into a meeting of world Communist leaders in Bucharest in June, Khrushchev was incensed. "One cannot mechanically repeat what Lenin said decades ago," he shouted. "We live in a time when neither Marx nor Engels nor Lenin is with us. If we act like children who study the alphabet by building words out of letters, we shall not get very...
...less than a billionth of a second, their very existence inferred from the erratic tracks they left in bubble and cloud chambers. Some left no tracks at all. The list proliferated to the sound of Greek letters-eta, rho, omega, lambda, sigma, xi-until it seemed that the alphabet might...
...even know what a letter of the alphabet was. Now I can defend myself." So said Felicinda de Lozada, a 36-year-old Caracas housewife for whom a proud new world was opening up last week. Illiterate a year ago, Felicinda enrolled in one of the adult night schools that Venezuela's government has organized in her slum barrio. She now looks forward to a complete primary-school education, and then intends to get a job to help support her family...