Word: error
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After much trial and error, researchers modified the contours of the blades; some, for instance, are thicker in the middle in order to provide more stability. Engineers put electronic sensors atop the towers that could constantly monitor wind direction and turn the machine to correct for changes. The sensors do not respond to every fluctuation, but when a computer calculates a sustained 15 degrees shift, it signals for a turn into the wind. The leading American manufacturer, U.S. Windpower of Livermore, Calif., has built machines with electronic components that act as a giant surge protector, keeping sudden bursts of energy...
...error in a town census report lists the first grader as an 87-year-old student. Somehow, her birth date was marked as 1904 instead of 1984, and she was recorded as head of the household...
CREDIT: From a telephone poll of 750 American adults taken for TIME/CNN on Dec. 17-19 by Yankelovich Clancy Shulman. Sampling error is plus or minus 3.8%. "Not sures" omitted...
...born in Karachi and grew up in South America. Although not ill-intentioned, the journalist's error is symptomatic of the definition of "race" in this culture where "Black," "Asian" and "Hispanic" are the only officially recognized "minorities...
CREDIT: From a survey of 5,000 taken by the Conference Board during November. Sampling error is plus or minus...