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Anonymous users2024-02-061, Qu Yuan. When he was young, regardless of the opposition of his elders, regardless of the wind and rain, the weather was cold and freezing, he hid in a cave and secretly read the "Book of Songs".
2 Wang Shipeng has been brilliant since he was a child, and his writing and thinking are quick, but his calligraphy is not satisfactory. So, he made up his mind that he must practice calligraphy well. Finally, under the guidance of Uncle Baoyin, he finally realized the true meaning of calligraphy and became a great calligrapher and writer.
3 Chen Sheng: When he was young, he was not satisfied with being a servant cultivator, and he had great ambitions. He later led the first peasant uprising in history.
4 Bruno: The great scientist of the Italian Renaissance. Bravely defended and developed Copernicus's Sun Center, did not flinch in the face of burning at the stake, and gave his precious life for the truth. He is a martyr who defends the truth.
5 Dai Zhen: Good at doubting and asking questions, reading Zhuzi when he was a child.
asked when the "University" was the book and when Zhu Zi was the person. The teacher told him that the "University" was the Zhou Dynasty.
Zhu Zi was a great Confucian of the Song Dynasty; He asked the people of the Song Dynasty how they could know the meaning of the author more than 1,000 years ago. He eventually became a university scholar in the Qing Dynasty.
6 Sima Qian. endured the ordeal of palace punishment and imprisonment, but did not give up on himself, and wrote the famous historical masterpiece "Historical Records".
7 Wen Tianxiang: Organized forces to resist the Yuan, failed and was captured, faced with the coercion and temptation of the Yuan Dynasty, refused to surrender, and finally died heroically.
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Anonymous users2024-02-05Edison searched for a filament - perseverance and perseverance led to successEdison was arguably the greatest inventor of the 19th century, and his name is associated with a series of brilliant achievements. But behind his success, there have actually been many failed attempts. He is said to have had a record of thousands of failures in his research on electric light.
In 1877, Edison began to reform the arc lamp experiment, in order to achieve satisfactory results, it was necessary to find a kind of test that could withstand 2000 degrees.
Filament burned at high temperature for more than 1000 hours. He did 1,600 different experiments and tried a variety of substances. After struggling for nearly five or six months, it turned out that only platinum is more suitable, but platinum is more valuable than **, and it is simply unrealistic to use it to make filament.
Later, he worked carbonization, and there were more than 6,000 kinds of carbonization tests on plants alone.
After a total of three years, it was not until the first half of 1880 that Edison developed a relatively satisfactory bamboo filament. On this basis, later generations developed a filament made of tungsten filament, which has been used to this day.
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Anonymous users2024-02-04Edison, the inventor of the light bulb, made more than 8,000 attempts to find a suitable material for the filament. At the beginning of the experiment, he found 1,600 kinds of heat-resistant materials and repeated tests nearly 2,000 times, and found that only platinum was more suitable, but platinum was more valuable than **, which means that the experiment failed. In the face of such failure, the average person would definitely choose to give up, but he did not, but continued to try to find the ideal filament material from plants, and tried more than 6,000 kinds of plants.
And Nobel.
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Anonymous users2024-02-03Helen Keller (June 27, 1880 – June 1, 1968) was a 19th-century American female writer, educator, philanthropist, and social activist. She is tenacious and persevering in self-improvement, in Anne. With the help of Ms. Sullivan, she mastered five Chinese languages, including English, French and German.
She has completed a series of books and is committed to the benefit of people with disabilities, establishing charities, and has been named one of America's Top Ten Heroic Icons by Time Magazine, and has won awards such as the "Medal of Freedom". His main works include "If You Give Me Three Days of Light", "My Life", "My Teacher" and so on.
Helen's life is a tragedy, but we can see in her the strength of the brave.
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Edison. He was a world-famous inventor He was an American, and when he was a kid because his family was poor, he only went to school for three months, and he started selling newspapers at the age of 11 or 12 He loved science, and he often saved his money to buy scientific books and chemicals The equipment he used for experiments was some bottles and cans that he picked up from the garbage dump When Edison was 12 years old, he was selling newspapers on the train, and there was a special car for passengers to smoke on the train, and the captain agreed that he would occupy a corner there, and he moved the chemicals and the bottles and cans there, and sold out of newspapers. So I did all sorts of interesting experiments, and one time, when the train was moving, there was a slam and a bottle of white phosphorus was dropped. >>>More
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