1 On August 23, 967, the former Soviet Union1spacecraft suddenly had a vicious accident when it returned to the atmosphere-the deceleration parachute could not be opened. After studying it, the central leadership of the former Soviet Union decided to broadcast the accident live to the whole country. When the announcer of TV station announced in a heavy tone that Soyuz-1 spacecraft 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 hero. I want to tell you that the hero's daughter will live like a hero! " Komarov told her daughter, "When studying, you must take every decimal point seriously. What happened today in Alliance One is because a decimal point was ignored in the ground inspection ... "

One minute passed, only seven minutes before Soyuz-1 crashed. Komalov waved to the national television audience and said, "Fellow citizens, please allow me to say goodbye to you in this vast space."

It can be seen that even a decimal point error will lead to a tragic farewell that can never be made up.

Just as Julius Caesar in ancient Rome famously said, "In a war, great events are often the result of minor events", China's epigram would probably be "A short step makes a long regret".