1 On April 24th, 967, when the Soviet Union1spacecraft returned to the atmosphere, a vicious accident happened suddenly-the parachute could not be opened. After studying it, the central leadership of the Soviet Union decided to broadcast the accident live to the whole country. When the announcer of the TV station announced in a heavy tone that the spaceship would crash in two hours and the audience would witness the news of the martyrdom of astronaut Vladimir Komarov, the whole country was immediately shocked and people were immersed in great grief. On TV, the audience saw the calm image of astronaut komarov. He smiled and said to his mother, "Mom, I can clearly see your image here, including every gray hair on your head. Can you see me clearly? " "Yes, you see very clearly. Son, everything is fine, don't worry! " At this time, komarov's daughter also appeared on the TV screen. She is only 12 years old. Komarov said, "Daughter, don't cry." "I don't cry ..." My daughter broke down in tears, but she fought back her grief and said, "Dad, you are a Soviet hero. I want to tell you that the hero's daughter will live like a hero! " Komarov told her daughter, "When you study, you should take every decimal point seriously. What happened to Soyuz-1 today was because a decimal point was ignored in the ground inspection ... "One minute passed, only seven minutes before the spaceship crashed. Komalov waved to the national television audience and said, "Fellow citizens, please allow me to say goodbye to you in this vast space." Even a decimal point error will lead to a tragic farewell that can never be remedied. Julius Caesar of ancient Rome famously said, "In war, great things are often the result of small things." In China's epigram, it's probably "a short trip makes a long regret".