When Nobel was studying liquid explosives with his father, his father and son almost died because of the explosion caused by the vibration of the car during transportation. Because the transportation of liquid explosives is inconvenient, Nobel started a new research. In an experiment, Nobel experimented with his father and brother in the laboratory. Suddenly there was a loud noise, and everything in the laboratory was suddenly reduced to ashes. His brother was killed, his father was disabled by the bombing, and he himself was injured. Faced with such a cruel reality, he didn't lose heart, but continued to struggle with difficulties and continue his research.
Once, as usual, Nobel lit a fuse in the laboratory and conducted a test. He lit the fuse himself. "It's closer! Closer! " Nobel's heart was pounding, only to hear a loud noise and smoke billowing from the laboratory. People thought he was dead, but when people saw him bleeding from the smoke, they only heard him shouting, "Success, success!" "
Nobel's inventions spread all over the world. He devoted his life to people all over the world, and his contribution far exceeded national boundaries.
Speaking of contribution, I can't help thinking of another person. He is Canadian. In War of Resistance against Japanese Aggression, China, he was always on the front line of the war, treating the wounded and sick in China. The teacher advised him to leave his post, and he only said one sentence: "I am a doctor, not your guest." So he began to work again. The battle lasted for three days and nights, but he worked on the operating table for nearly sixty-nine hours! He is China's benefactor-Dr. Bethune. He could have lived a life of peace and contentment in his hometown, but he chose to live on the battlefield, saving lives with his superb medical skills, and saving lives in China. Although he is Canadian, his lofty spirit transcends national boundaries.
Those who serve the people have nationality, while those who serve the people have no national boundaries; Scientists have nationality, but science has no borders!