Word: spans
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Dates: during 1970-1979
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...size of the student body has changed very little over the past 25 years: there has only been a 14 per cent increase. What has changed dramatically over the same span of years is the size of the Faculty: an increase of over 100 per cent. Yet in the 1950s, students were far more likely to receive their instruction from faculty--mostly junior faculty--whereas today the same instruction is given by graduate students. Where have all the faculty gone...
...Organisms with a life span of five years, like that of the beetle grub, would be able to survive even a five year trip inside a log," Fell said. Marine organisms like barnacles could also be transported on the outside of the log, he said...
...fused and formed the heavier nucleus of element 106-but not for long. Like most artificial elements, No. 106 is extremely unstable. It has a half-life of only nine-tenths of a second-that is, half of its atoms will break apart into simpler atoms in that brief span of time. Thus the substance quickly decayed into lighter elements...
...could not suppress a somewhat derisive grin when I found President Ford with his dirty shoes resting on the desk at the White House. To us Orientals, any desk is meant for reading and writing and not for putting shoes on, no matter how spick-and-span they may be. I am horrified to imagine what the new U.S. President will do in his office next. Please ask him not to chew gum while deciding the fate of nations...
...clear as possible, both out of fairness to the President and a desire to make the task of the House easier in judging the articles. Yet the nature of the charges against the President is not confined to single acts but often embraces a course of conduct over a span of time involving many acts. To be specific would produce lengthy and com plex articles. The framers of the articles, moreover, did not want to be confined too strictly to each specific claim, since that would limit the evidence that could eventually be used in the Senate...