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In 1637 , Richard Norwood proposed re-knotting the log line at 50 feet to reflect the change in reckoning a nautical mile from 5,000 feet to 6,000 feet ( based on more accurate measurements of the globe ) . An overview of the state of the art in solving systems of nonlinear equations that arise in robot kinematics is given in the appendixes . South Africa , one of the few economic bright spots on the African continent , attracts migrants from many neighboring countries — and is almost alone on the continent in erecting significant legal restrictions on immigration . These patterns occur in many areas ; the pattern of commands someone uses in instructing a computer , sequences of words in sentences , the sequence of phonemes in spoken words - any area where a sequence of events occurs could produce useful patterns . Today , the Michigan Comprehensive Diabetes Center is making huge strides in solving the mystery of diabetes and its origins – with one goal in mind – to find a cure . Eighty-four percent of the staff is young and middle-aged , and quite a few have had experience in studying abroad , such as the U.S.A ., Japan , Britain and France .