First, the phonograph invented by Edison
Edison is a famous American scientist and inventor. Because he has more than 1 kinds of inventions such as electric light, phonograph, film and storage battery, people call him "the king of inventions" and "the magician".
Edison's greatest achievement was the invention of the electric light. However, among his inventions, nothing shocked the society at that time more than the phonograph. In the autumn of 1877, the phonograph invented by Edison caused a sensation throughout new york, and journalists from various newspapers flooded in to report this extraordinary news.
Second, the story of Watt inventing the steam engine
One summer morning, the weather was fine, and the thrush was singing a sweet song in the tree. On the campus of Glasgow University in England, there is a man walking. He walked slowly up and down the green lawn. He sometimes looked at the vast sky, sometimes looked at the tan playground, and sometimes frowned ... Suddenly, a smile appeared on his face, and his mood was suddenly enlightened. He came up with an effective solution to the steam engine. He ran happily, his feet flying. At the moment, his figure appeared on the operating platform that accompanied him for many years. He is Watt, the inventor of the steam engine.
With the development of intellectual education, Watt has taken a keen interest in some things that exist objectively, resulting in curiosity and research. This laid a good foundation for his later invention of the steam engine.
In the small town of Greenock, Watt's hometown, every household makes a fire to boil water for cooking. Who has ever cared about such a common thing? Watt left his heart. Yes, he is watching his grandmother cook in the kitchen. There is a pot of boiling water sitting on the stove. The boiling water is boiling. The lid of the pot snapped and kept jumping up. After observing for a long time, Watt felt very strange. He couldn't figure out why, so he asked his grandmother what made the lid of the pot jump.
Grandma replied, "The water is boiling, that's all. "
Not satisfied, Watt asked," Why does the water jump when the lid is opened? Is something pushing it? "
Maybe my grandmother was too busy to answer him correctly, so she said impatiently," I don't understand. What's the point of children asking these questions? "
instead of finding the answer from his grandmother, Watt was criticized unjustly, and he was very uncomfortable, but he was not discouraged.
for several days, whenever cooking, he squatted by the stove and watched carefully. At first, the lid of the pot was very stable. After a while, the water was about to boil, making a loud noise. On the ground, the steam in the pot came out and pushed the lid of the pot to jump. The steam kept rising, and the lid of the pot kept beating, as if there was a magician hiding inside, doing tricks. Watt was so happy that he almost cried out. He opened the lid of the pot, closed it again and again, and verified it again and again. He also covered the cup and spoon where the steam was ejected. Watt finally figured out that it was the steam that pushed the lid to jump, and the power of this steam was not small.
Just when Watt was in high spirits and ecstatic, grandma spoke again: "You child, you don't know what's so funny about the kettle, go away quickly!"! "She said casually.
His grandmother is too impatient and subjective. If she doesn't take it to heart casually, it almost hurts Watt's self-esteem and his intention to explore scientific knowledge. Old man, I don't understand Watt's heart at all, and I don't know how much inspiration steam has on Watt! Isn't the physical phenomenon that water vapor pushes the lid of the kettle to jump the source of understanding that Watt invented the steam engine?
in 1769, watt changed the steam engine into a single-acting engine with large power. After many studies, in 1782, the trial production of a new steam engine was completed. With the linkage device on the machine, the simple motion was changed to rotary motion, and the perfect steam engine was invented successfully.
due to the invention of the steam engine and the developed coal and iron industry in Britain at that time, Britain became the first country in the world to use steam to propel iron "seagoing vessels". In the 19th century, maritime transport reform began, and some countries entered the so-called "steamboat era". Since then, ships have been sailing on the boundless ocean. Subsequently, coal mines, factories and trains all used steam engines. Manual labor was liberated and the economy developed. This is the result of the invention of the steam engine. Of course, it is also the credit of Watt, the inventor of the steam engine. Therefore, Watt is famous in the world.
Third, the invention of the telephone
Bell is the man who invented the telephone. He was born in England in 1847. When he was young, he worked with his father to teach the deaf-mutes. He wanted to make a machine for the deaf-mutes to see sounds with their eyes.
In p>1873, Bell, who became a professor at Boston University in the United States, began to study the device of transmitting many telegrams on the same line-multiplex telegraph, and he came up with the idea of using electric current to transmit people's voice to a distant place, so that people who are thousands of miles away from Qian Shan can talk as if they were facing each other. So Bell began to study the telephone.
It was June 2, 1875. Bell and his assistant Watson were experimenting with the multiplex telegraph in two rooms respectively. An accidental accident inspired Bell. There was a spring stuck to the magnet on the telegraph in Watson's room. When Watson pulled it open, it vibrated. At the same time, Bell was surprised to find that the spring on the telegraph in his room vibrated and made a sound. It was the current that transmitted the vibration from one room to another.
Bell's thoughts suddenly widened, and he thought: If a person speaks to a piece of iron, the sound will cause the iron to vibrate; If an electromagnet is placed behind the iron sheet, the vibration of the iron sheet will inevitably produce a large and small current in the electromagnet coil. This fluctuating current travels far away along the wire, so won't the same vibration and sound occur on similar devices in the distance? In this way, the sound travels far away along the wire. Isn't this the dream phone!
Bell and Watson made the telephone according to the new idea. In an experiment, a drop of sulfuric acid splashed on Bell's leg, which made him cry, "Mr. Watson, I need you. Please come to me!" " This sentence was transmitted to Watson's ear by telephone through wires, and the telephone succeeded! On March 7, 1876, Bell became the patentee of the telephone invention.
Bell has obtained 18 patents in his life and 12 patents in cooperation with others. He envisaged burying the telephone line in the ground or hanging it in the air, and connecting it to houses, villages and factories ... in this way, you can call directly anywhere. On this day, Bell's vision has already become a reality.
Fourth, Einstein's Small Bench
When Einstein was young, he once had a handicraft class and wanted to make a Xiao Mu bench. When the bell rang, the students scrambled to come up with their own works and give them to the female teacher. Einstein didn't take out his own work, and he was sweating with anxiety. The female teacher looked at the little boy generously, believing that he could hand in a good work the next day.
The next day, Einstein gave the female teacher a small bench that was roughly made, and one leg of the bench was nailed off. The expectant female teacher said discontentedly, "Have any of you ever seen such a bad stool?" The students shook their heads. The teacher took another look at Einstein and said angrily, "I think there will be no worse stools in the world." There was a burst of laughter in the classroom.
Einstein's face was red. He went up to the teacher and said positively, "Yes, sir, there are worse stools." The classroom suddenly quieted down and everyone looked at Einstein. He walked back to his seat, took out two rougher small benches from under his desk and said, "This is the first time and the second time I made it. The third wooden bench was handed over to the teacher just now. Although it is not satisfactory, it is better than the first two. "
This time, everyone stopped laughing. The female teacher nodded kindly and thoughtfully to Einstein, and the students also cast admiration and approval on him.
This short story shows us Einstein's resilience. No matter what he does, he will try to do well and give full play to his potential. ?
v. Nobel's story
Nobel was very thin when he was a child. At the age of ten, I went to Fort Bader in Russia with my mother, reunited with my father, and began to accept the guidance of a tutor. At the age of seventeen, I went to study in the United States and returned to China two years later to work in my father's company.
influenced by his father, Nobel was interested in studying explosives. Later, he made a lot of money by making explosives and developing oil fields. However, he felt very sad when he saw that the explosive he invented was used in war, so he devoted his life to calling on the world to use gunpowder for peace. Nobel used his huge fortune to set up a fund, and awarded prizes every year to people in the world who have made outstanding contributions to physics, chemistry, biology, medicine, literature and peace. Being able to win the Nobel Prize has always been regarded as a great honor!
It was foggy in the laboratory. Nobel was working selflessly. His brother came to him and said, "Nobel, I am sorting out our family tree. You are a world-famous figure. How can you do without your autobiography?" Write an autobiography. "
"Brother, no need."
"how can I do that?" Nobel's brother persuaded him, "Brother, you wrote your autobiography not for yourself, but for our family! You write it. Your autobiography is in our family tree, which will add luster! "
Nobel still refused, so his brother repeatedly persuaded him. Finally, he even begged, "Brother, are you afraid of wasting your time? In that case, you can talk about it, and I will record and organize it. "
"I really can't do it." Nobel was modest, but said firmly, "I can't write an autobiography. There are so many planets in the whirlpool of the universe, and we are insignificant, so what is worth writing!"
I see! He thinks that everything he has done is only for the sake of what human beings should do. Why should he exchange a little contribution for honor? Therefore, he never promised.
Nobel's brother had to leave with a sigh. Nobel buried himself in the experiment again.
Nobel's will is the essence of his ideal and the crystallization of his painstaking efforts. Although he is rich, he is unwilling to distribute his property to his relatives and friends. He believes that large property is a scourge that hinders human talents. Anyone who has wealth should only leave their children with necessary education expenses. If they leave too much money, it will be a reward for laziness, so that they cannot develop their talents.
Therefore, regardless of the opposition of his relatives and friends, he decided to use all his property to set up the Nobel Prize to reward contemporary world elites.