Word: proven
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Dates: during 1970-1979
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...fallen prey to the theory-without-evidence mode of historical accounting. He believes in sticking to the facts--even though at times the "provable facts" were actually incorrect. Works such as U.B. Phillips' American Negro Slavery, written in 1929, distorted the facts of history when they included as a "proven fact" that blacks were racially inferior. Although we are never told quite why, Handlin finds these illusions forgivable...
...prizewinners predicted the existence of the underlying "neutral current" and the "charm quark" particle more than six years before their existence was proven experimentally, Strauch said. He added that the experimenters who detected the "charm quark" in 1973 were awarded Nobel Prizes after two years while the theoreticians had to wait until yesterday...
...when geologists drilling into the cactus-studded wasteland of Tabasco state tapped into the gigantic Reforma oil and gas field, Mexico has turned up one immense deposit of petroleum after another. In his state of the union address in early September, López Portillo boasted that Mexico now had proven combined reserves of 45 billion bbl. of oil and gas. Officials of Pemex, the national oil com pany, predict that as many as 200 billion bbl. of crude may eventually be uncovered...
...took an ambassador's post and his successor, State Secretary Wesley Bolin, died in office-shrugged off the company's reaction. Said Babbitt, who has since won election in his own right: "There is an extremely serious situation down there, and the management of that company has proven its inability to take care of the situation...
Another question lingered: Was the leaking truly dangerous? Though radioactive, tritium is a hydrogen isotope emitting only low-energy beta particles that cannot penetrate uncut skin. If ingested, tritium may mix with body chemicals, but no biological damage has ever been proven. That ambiguity did not trouble state officials. "If a person breathes in tritium, it doesn't have to be strong to do harm," contends Ken Geiser, acting director of the Arizona atomic energy commission...