Speech by my favorite scientist 1 Scientists are simple and beautiful, pure and lofty, and scientific spirit is the spiritual character that all modern people must have. I know many scientists, including Braille, Einstein, Newton, Edison and other world-famous scientists, among which Edison, the "king of invention", is my most admired person.
1847, Edison was born in a rural family in the United States. He has been smart since he was a child and likes to think. Interested in everything. Edison 1 1 went to the train to buy newspapers when he was years old. Soon, he found the lost property and fell in love with the telegraph.
Once, Edison saw a little boy playing on the tracks at the railway station. The little boy didn't hear the train galloping. Just then, Edison flew over and brought the little boy down. Finally, I learned that the little boy is the son of the stationmaster. In order to thank Edison, the stationmaster decided to call Edison telegraph technology. Edison learned quickly and was recommended by the stationmaster to work in the railway bureau. In order to prevent night shift personnel from sleeping late, the railway bureau stipulates that every hour is like a signal sent by the conductor. After many experiments, Edison connected the alarm clock to the telegraph and automatically sent a signal every hour. It wasn't long before it was discovered. Edison was fired because of this little invention.
After that, Edison lived the life of a wandering telegraph operator. When Edison was studying the telegraph, he found that a line could only send one signal, but he didn't delve into it because of his work. Now that Edison has more time, he immediately devoted himself to improving and perfecting the telegraph. He invented dual-transmitter, four-transmitter and four-transmitter successively, and made great contributions in the history of telegraph.
Edison made persistent explorations all his life, and successively invented the telephone, movie machine, electric light, storage battery and so on. His indomitable scientific spirit of studying hard, studying hard and facing failure is worth learning from all of us.
Speech by my favorite scientist 2 Dear teacher:
There are many scientists in the world, but there is only one I admire most, and that is Edison.
Edison invented countless good and useful things for people. He invented something extremely useful and even changed the world. Without it, the whole world will enter the dark world. It is the light of the world-electric light.
Edison accidentally invented the electric light. One night, his mother got acute appendicitis, and his father called a doctor. After the diagnosis, the doctor said that the operation should be performed immediately and agreed to operate at home. But the light is too dim. Edison said, "Do you want more oil lamps?" The doctor said, "No, if the oil floats into your stomach, it will be in trouble." Edison thought about it and invited many friends to his house with mirrors. Light an oil lamp outside the house, and then reflect the light into the house with a mirror. The room suddenly lit up and the operation was a success. From then on, Edison began to think about inventing the electric light. When he used a hundred kinds of materials, someone began to make fun of him and said, "Edison, you have failed a hundred times. It's time to have a good rest." Give up. " Edison said, "eldest brother, I didn't fail a hundred times, but succeeded a hundred times, because I know that these 100 materials can't be used as electric lights." Slowly, after Edison experimented with more than 6000 kinds of materials, he finally succeeded.
Of course, Edison's inventions are far more than these, and there are many, many ................................... When you know these, I believe you will admire him, too.
My favorite scientist's speech 3 Dear students:
Hello everyone!
I am a classmate of Class 4, Grade 5, Elite Future School. I think everyone has a scientist whom they admire, and I am no exception. Today I'd like to introduce the scientists I admire to you. His name should be familiar to everyone-Darwin. He is a famous British biologist and the founder of the theory of evolution. He once published an epoch-making book, Origin of Species, and put forward the theory of biological evolution.
183 1 After graduating from Cambridge University, his teacher Henslow recommended him to participate in the global scientific expedition on February 27th, 65438. When he traveled around the world, he planted a plant called grass reed in the cabin. Only the window in the hut can transmit sunlight. Darwin noticed that the seedlings of grass only curved in the direction of the window. Due to the delay of the Origin of Species, he began to study it in his later years. Finally, Darwin showed some experiments made by this detail and their results in the book "Plant Mobility" published by 1880. From this incident, I can see that Darwin is a man who knows how to observe carefully and pay attention to everything around him. Even small changes in grass and reeds can be seen and studied carefully until new arguments are put forward.
1858, Darwin decided to submit some papers to a professional Committee. 1859 The Origin of Species was published, and the first edition 1250 copies sold out on the same day. Later, Darwin spent twenty years collecting data, enriching his theory of species evolution through natural selection, and expounding its consequences and significance. Darwin is a famous biologist, but he is still cautious about studying biology, not satisfied with his temporary achievements, and constantly enriching himself. Not only that, but his persistence in research is also worth learning. Compared with Madame Curie's three years' research, the figure of twenty years is even more shocking. Twenty years, such a long time, Darwin could have done other research, put forward more arguments that made him win honor again, or lived with peace of mind by the Origin of Species at that time. However, it took him so long to enrich an already-formed squat point, and this spirit of continuous improvement and enrichment is even more convincing.
We should learn from Darwin's spirit: preciseness, carefulness and perseverance. I believe that no matter in which field or place, as long as there is such a spirit, everything will not be so difficult.
Thank you, my speech is over!
My favorite scientist's speech 4 Dear students:
Today, I want to introduce a scientist with outstanding achievements to you. He is grandpa Qian Xuesen. Grandpa Qian Xuesen is a famous scientist in China, who has made outstanding contributions to the establishment and development of the rocket, missile and space industry in the motherland, and is an advocate of system engineering theory and applied research in China. 19 1 1 Born in Shanghai, 1934 graduated from Shanghai Jiaotong University. In order to better serve the motherland, 1935 was admitted to the Massachusetts Institute of Technology for further study, and 1936 was transferred to the California Institute of Technology for further study to pay a visit to the famous aviation scientist Feng? Carmen studied aviation engineering theory as a teacher. Grandpa Qian Xuesen studied very hard. After three years, he got a doctor's degree and stayed in school to teach. Under the guidance of his teacher, he became interested in rocket technology. Soon, Grandpa Qian Xuesen became the youngest tenured professor at California Institute of Technology. From 1935 to 1950, Grandpa Qian Xuesen made great academic achievements and paid well all his life, but he always missed his motherland. 1949 When the first five-star red flag was slowly raised in Tiananmen Square, Grandpa Qian Xuesen was deeply happy for the rebirth of the motherland. He intends to return to China and use his professional knowledge to serve the new China. However, it was not easy for China scientists in the United States to return to China at that time, and Grandpa Qian Xuesen's expertise was directly related to national defense, so he went through hardships and finally returned to the motherland with the help of Premier Zhou Enlai after a 20-year absence. His tortuous struggle process shows Grandpa Qian Xuesen's deep love for the motherland. How touching!
1In the early winter of 955, Grandpa Qian Xuesen, who had just returned to the motherland, visited Harbin Institute of Military Engineering. Dean General Chen Geng asked him: "Can China people engage in missiles?" He said, "If foreigners can do it, why can't China people do it? Are China people shorter than foreigners? ! What a strong national pride and self-confidence! " This sentence decided his career in rocket, missile and space. 1956 the first missile research institute in China was established, with grandpa Qian Xuesen as the first president. At Jiuquan launch site, Grandpa Qian Xuesen slept in a tent and ate coarse grains, and organized the test, calculation, analysis and research of missile tests. Under his guidance, China scientists overcame many difficulties and successfully conducted the flight test of China's first missile on June 5, 1960+065438. 1966, 10/0 On October 27th, Grandpa Qian Xuesen participated in the flight explosion test of China's first medium-short range surface-to-surface missile with a nuclear warhead, that is, the "two-bomb combination" test of an atomic bomb and a missile. The successful explosion of a nuclear warhead over a predetermined location shocked the world. An American general said that no matter where Grandpa Qian Xuesen was, it was equal to the fighting capacity of five divisions.
Grandpa Qian Xuesen made some achievements abroad, but he didn't forget his motherland. After the founding of New China, he gave up his superior living conditions, broke through the obstacles of the United States, and finally returned to his motherland, devoting all his talents to the development of national defense and cutting-edge science and technology in China. How admirable this spirit is! Students, today we are primary school students. In ten years, we will graduate from the university. At that time, the heavy responsibility of rejuvenating the country will fall on our shoulders. How worthy of our study is the deeds of Grandpa Qian Xuesen! Let's follow the example of our predecessors, study hard and serve the motherland when we grow up!
Thank you!
My favorite scientist's speech 5 In history, many scientists helped us light up the night. Among them, Edison is the person I respect most. He had more than 20xx inventions in his life, and 1328 inventions were patented. On average, there will be a new invention every 15 days. At the peak of invention, there is an invention every three days, so he is called "the king of invention", and his invention has made great contributions to mankind.
He was curious when he was a child. No matter what happens, he will ask why. Whenever possible, he likes to do experiments easily, so he often makes big jokes. Once, he saw a hot air balloon flying and wondered if a person's stomach was full of gas. After that, he let his companion eat a powder that can produce gas, which almost killed him. His father also gave Edison a good beating, but his curiosity did not diminish.
In class, he often asks questions that even the teacher can't answer. The teacher called him "idiot" and "imbecile", and finally he was expelled from school. But his mother is also a teacher and has been teaching him ever since.
The most brilliant achievement in his life was the invention of the electric light. Before electric light appeared, people used dim kerosene lamps. He carefully studied a dazzling arc lamp and found 1600 kinds of heat-resistant metals and 6000 kinds of plant fibers, but all failed.
. Finally, one day Edison thought of trying cotton yarn, and then what they looked forward to day and night appeared in front of them: the light bulb gave off golden light. This day is 1879, 10, 2 1. Later, people designated this day as the invention day of electric light.
My favorite scientist's speech 6 Dear teachers and students:
Hello everyone! The topic of my speech is "A scientist I admire most".
One of the scientists I admire most is Newton. I admire him because he has the spirit of concentration, diligence, persistence, persistent pursuit and hard study.
Newton was very absorbed in his work. Once, Newton did an experiment in the laboratory and forgot the time to eat. The assistant took some eggs for Newton to cook by himself. Newton took a small pot, put the eggs in it, turned on the stove and began to do the experiment again. He didn't remember the eggs in the pot until he finished the experiment. Open the lid and see if there are any eggs in the pot. There is only a pocket watch. It turned out that Newton was so absorbed in the experiment that he cooked the pocket watch as an egg.
Newton was very good at thinking. Once, Newton sat under an apple tree in the country and meditated. Suddenly an apple fell to the ground. So he started his research. He found that everything will inevitably fall down once it loses its support, and then he found that there is gravity between any two objects, and this gravity is inversely proportional to the square of the distance, thus summing up the law of universal gravitation.
Newton was also very persistent in his pursuit. When he was a child, the British hierarchy in feudal society was very serious, and students who studied well in primary and secondary schools often discriminated against those who studied poorly. There was a game between classes. When everyone was in high spirits, a classmate who studied very well found an excuse to kick Newton and called him an idiot. Newton's mind was stimulated and he was extremely angry. He thought, we are all students. Why should I be bullied by him? I must pass him! From then on, Newton made up his mind to study hard. He gets up early and goes to bed late, races against time and studies hard. Through hard work, Newton's academic performance continued to improve, and soon surpassed the classmate who had bullied him, ranking among the best in the class and saving his honor.
It was Newton who possessed these excellent qualities and finally made a great scientist. We should learn from Newton's spirit of assiduous study, perseverance and meticulousness, and be a good student with excellent academic performance.
Thank you, my speech is over.