Word: unwinds
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Dates: during 1960-1969
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...elegant experiment reported last week in Nature. Once the two strains of virus had finished raiding the bacteria, the experimenters dissolved their protein sheaths, exposing their raw DNA molecules (Step 1 in diagram). Next, the scientists heated the dissimilar DNA molecules, causing each double helix to unwind and separate into one lighter and one heavier strand. Taking only the heavier strand from each virus, the researchers placed them in the same test tube, reheated them and then cooled them slowly, a process that causes two chemically complementary strands of DNA to combine in a double helix. But the two strands...
...States to stride across the world and preach: 'Come, let us reason together.' " As for this week's flight with Richard Nixon, Sidey reports that preparations have been like the campaign: "cool, meticulous, competent. The trip has been plotted with care and it is expected to unwind with precision...
...every day for a week he went up the mountain after lunch to shoot "the Slot," one of the toughest runs at Snow-mass-at-Aspen. "Simply magnificent," gloated retired Secretary of Defense Robert McNamara, 51, a ski nut who has been using the Aspen ski slopes to unwind after seven crushing years in Washington. In his new job as president of the World Bank, the Tiger will be able to spend about half the year at his chalet in Snowmass, but last week's outing may prove unsurpassable. "This has been a beautiful week," said McNamara. "Resting, relaxing...
Paris' Gare du Nord to the center of Brussels aboard the He de France or the Etoile du Nord, the busy businessman can unwind in uncrowded 40-passenger cars; he gets first-class meals served at his seat, can dictate to a TEE-provided stenographer and make telephone calls...
...race finishes. The crowds begin to break up with the Harvard students heading for Saturday night dances. Finally the crews can begin to unwind at the award ceremonies. But for them the unwinding is different from what the spectators have in mind. For the crews, the Eastern Sprints end as apart from the crowds that watch them as they began...