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I heard that Archimedes was a famous scientist, and today I read this article with great curiosity. Archimedes was very serious when he thought about the problem, and he thought about it when he walked and ate. It has benefited me a lot.
Archimedes was also very smart. Once, when the people of the Roman Empire came to attack a place near the sea in Greece, when everyone was not sure what to do, Archimedes stood up and said: "Don't panic, don't panic, everyone, calm down, listen to me."
Everyone hesitated for a moment, and then went home and brought the mirrors. Archimedes instructed everyone to hold up the mirror and ask everyone to point the mirror at the ground. After a while, ** caught fire, and the sea breeze blew a hammer, and ** all burned.
Using this method, several other ships also caught fire, and the rest fled. In this way, Archimedes used the principle that the mirror could concentrate the light and reflect the light to defeat the invaders of the Roman Empire.
How calm Archimedes is in the face of difficulties, think about me.
Every time I encounter a problem and I can't solve it myself, I get angry: I smash books, smash tables, pull my hair, and the whole person is going crazy. But it can't solve this problem.
As a result, calm down and think about it calmly, difficulties are solved, it is really "difficulties are like springs, if you are weak, it will be strong, and if you are strong, it will be weak." ”
After reading this article, I learned a truth: one should not retreat when encountering difficulties, but think. There is a good saying: there is nothing difficult in the world, only afraid of those who have a heart. A person can only progress if he has experienced setbacks and difficulties.
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This book tells the story of four great scientists, Li Shizhen, a famous medical scientist of the Ming Dynasty in China. It took him twenty-seven years to complete the Compendium of Materia Medica. It is a great medical canon that is still used regularly to this day.
Darwin was an English naturalist who spent twenty years writing the scientific masterpiece "The Origin of Species", and he was the founder of the theory of evolution.
Newton was an English scientist and a symbol of modern science. He discovered the law of gravitation and the three laws of mechanics, and he spent more than 20 years studying optics and achieved one amazing result after another.
Edison was an American inventor who invented the phonograph, electric light, motion picture machine, storage battery, ......He brings light to the world and brings enjoyment.
These four scientists were not special when they were children, but they all had a strong curiosity, liked to observe the affairs around them, and loved to do experiments. They all have lofty ideals, and in order to realize them, they study and work without sleep or food, and concentrate on studying things. They do not lose heart in the face of failure, and they do not give in in the face of difficulties.
They have dedicated their lives to the cause of science. I want to learn from their spirit of self-improvement, hard work, and courage, and be a good child who loves science and learning.
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Indeed, the popularization of science is not a matter of waiting for it to come, it requires sweat and hard work, and for a group of students like us, there is obviously not so much time to study science and understand science, so how can we get close to science and understand science? I sweated it out of the Student Discovery Encyclopedia.
The mind is the most beautiful flower on earth", and the spirit of exploration is the most brilliant branch of it. For thousands of years, human beings have continued to expand their understanding of the spirit of nature, the wonder of science, and the human beings themselves with a tireless spirit of inquiry. In the never-ending exploration of the unknown**, human beings have constructed a colorful and fascinating world.
Do extraterrestrial civilizations really exist? Why do animals hibernate? What is the Goldbach-Herd conjecture?
Can we cross time and space? These questions have always been with me, and in order to solve these "mysteries" that I don't understand, I chose Basic Science, hoping that it can bring me answers to these questions that I don't understand.
After reading the popular science book, this book is divided into three chapters - natural exploration, scientific exploration and historical exploration. The layout of the three chapters is very good, so that readers can easily find the knowledge they are interested in, the three chapters are divided into several sections according to their own characteristics, each section is designed in the structure of the grand main picture and wonderful pictures to enhance the visual impact, so that readers can happily embark on a novel exploration journey in the accurate text description, rigorous principle reveal, and easily master the encyclopedic knowledge.
After reading this book, I deeply felt the benefits it brought to me.
First of all, in the first chapter of natural exploration, I learned about the information from the depths of the universe, the long journey of life, and in the second chapter of scientific exploration, I learned about the ubiquitous ** segmentation, the mystery of the four colors, the search for "ghost particles", and whether we can travel through time and space, ......And so on, this knowledge is also I have learned about science, learned scientific methods, scientific theories, scientific development, scientific analysis of these important things, and encountered some strange things in daily life I can also answer him through scientific explanations, these knowledge have enriched my life experience, so that I continue to grow healthily.
In the third chapter, I learned about the Silk Road, the origins of the Olympic Games, Cleopatra, the pyramid project, ......And so on and so forth. History makes people wise, because by understanding history, they can learn from the correct practices of their predecessors and change their own wrong style, so that people can have fewer bumps in the road to success and forge a flat road for themselves.
Look! What a benefit a knowledge book has brought us, in this era of science, if we don't learn more about science, we will definitely be gradually forgotten by this era, we will only lag behind little by little, choose a good popular science book, I believe it will bring you unexpected gains!
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Archimedes once said, "Give me a fulcrum, and I will pry up the whole earth."
Archimedes established the basic principles of statics and hydrostatics. A number of methods are given for finding the center of gravity of a geometric figure, including the center of gravity of a figure enclosed by a parabola and its parallel chords of a net. Archimedes proved that the buoyancy of an object in a liquid is equal to the weight of the liquid it distributes, a result that became known as Archimepides' principle.
He also gave the criterion that the positive parabolic rotating body floats in the liquid to balance the stability of Qiaosen. Archimedes' invented machinery includes a water spiral for water diversion, a lever pulley machine that can pull a fully loaded ship, and an earth-moon-sun model that can explain the phenomenon of solar and lunar eclipses. However, he did not write about mechanical inventions because he considered them inferior to pure mathematics.
Archimedes also used the method of continuous segmentation to find the volume of ellipsoids, rotating projectiles, etc., which already had the rudiments of integral calculation.
Characters are born. Archimedes was born in 287 BC in a small village near Syracuse, Sicily, Greece, to a wealthy family that was related to King Henon of Syracuse. Archimedes' father was an astronomer and mathematician, a man of great learning and humility.
Archimedes means great thinker, and Archimedes was influenced by his family and developed a strong interest in mathematics, astronomy, and especially geometry in ancient Greece from an early age.
When Archimedes was born, the glorious culture of ancient Greece had gradually declined, and the economic and cultural center gradually shifted to Alexandria, Egypt. On the other hand, the emerging Roman Republic on the Italian peninsula was also expanding its power; There was also the rise of a new state, Carthage, in North Africa. Archimedes grew up in this era of alternating between the old and the new, and the ancient city of Syracuse became a place of gladiatorial struggle for many forces.
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We love science after reading 300 words] We love science - after reading Gold Coast Primary School Sixth Grade Class 2 Li Muzi Instructor: Zhu Qingyuan I have subscribed to a lot of publications in school, among which I like to read "We Love Science" the most, because there are many interesting and real things in it, so that I have learned a lot of knowledge, we love science after reading 300 words. In the "Safari" section, I got to know all kinds of strange animals; In the "Different Class", I learned how to take care of myself, and in the "Special Report" I met strange treasures; In the "Water World" section, I saw aquatic animals that I had never seen before, and in "Green Clothes of the Earth" I came across a cat's tail wooden ...... that resembled a "cat's tail".Let me get to know them, after reading "We Love Science After Reading 300 Words".
Among them, I like to watch "Safari" in "We Love Science", who makes me love small animals so much! The animals inside are diverse: pandas, antelopes, gorillas, ......It's wonderful.
The perseverance of the little squirrel, the tragic fate of the eaglet, and the escape of the giant panda ......The content is rich and colorful. "In the wild, the staff found nets that illegally caught birds, and there were also carcasses of small birds inside. That's what impressed me the most.
How can those cruel people do that? What would happen to you if you were caught? I wish they had stopped hunting.
We Love Science has taught me a lot, and I have learned a lot, and I hope to subscribe to it more in the future. We love science after reading 300 words Essay gift: [Everything in this world is done by hope, the farmer will not peel a grain of corn, if he does not want it to grow into a seed; A bachelor will not marry a wife if he does not wish to have children; Nor will a businessman go to work if he does not wish to make a profit from it. 】
--Reading "Robinson Crusoe".
Defoe's "Robinson Crusoe" describes the legendary story of the protagonist drifting on the island, overcoming difficulties, and working hard. Written in a real and natural way, full of legends. The protagonist grows crops on an isolated island, builds a wooden house, endures a lot of hardships, and survives. >>>More
I don't feel like I have it after reading it, but I can still point to it!
Childhood I benefited a lot from reading the book "Childhood". And Gorkibi childhood, how happy we are today. Gorky was born into a family of carpenters, and when he was 5 years old, his father died of illness, and his life became even more difficult, and he and his mother lived in his grandfather's house. >>>More
Read The Collapsed Empire – A Brief History of the Fall of the Roman Empire. >>>More
Robinson Crusoe is a novel written by the English writer Fodi in 1719. The book mainly introduces the protagonist Robinson's ship on the way to the storm and hit the rocks, the sailors and passengers on the ship were all killed, only Robinson survived, drifting alone to an uninhabited island, he used the mast of the sunken ship to make a raft, again and again the ship's food, clothes, tools, etc. were transported to the shore, and set up a tent on the side of the hill to settle down, a stay is 17 years, he not only planted barley and rice on the island by himself, made his own wooden pestles, sieves, processed flour, and baked coarse bread; He also made pottery and so on, ensuring his own living needs. >>>More