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marks?\"
\"Yes, father. \"
\"And what seat do you have?\" \"Number
twenty-one. \"
\"And how many students are there in your class?\"
\"Twenty-one, father. \"
Several weeks pass. Peter, who is a bad student and studies
very little, brings home the marks of his monthly examinations.
\"How are you getting along in school now, Peter?\"
asks his father. \"Your marks do not seem to be very good. \"
\"I am getting along much better now, father. \"
\"What is your place in the class now?\"
\"Number twenty now. \"
\"Good. Then you are one place ahead. \"
\"No, father. One of the students left the class. His
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The goal of the Columbia space shuttle mission was to launch safely into space, performing scientific experiments, and to land safely on earth. This was what the crew of and the people at the Houston space centre attempted. This mission was successful until re-entry, when the space shuttle disintegrated without warning. The goal was not achieved; seven astronauts tragically lost their lives. This failure does not mean thatthis tradgety was without value. It forced NASA to re-examine its contingencies. NASA was compelled to look carefully at its organization structure, independent contractors, and engineering practices. Congress demanded accountability, and was forced to re-examine its budget practices concerning space exploration.
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