A brief history of time, a review of 2000 words, a college student" Thoughts on Reading 'A Short History of Time'"
" A brief history of time " was a popular science masterpiece written by the famous physicist Stephen Hawking. After reading this book as a college student, he had a deep and diverse understanding.
I. A deep understanding of the spirit of scientific exploration
In the long river of science, A Short History of Time allowed us to see the exploration process of many great scientists. They did not blindly follow the authority, but relied on their own thinking and opinions, and even put forward new theories at the risk. This spirit was of great significance in today's university education and future social development. Colleges were the cradle of cultivating compound talents. In this era of fierce competition and rapid changes, the competition between countries was more reflected in talents. Traditional ideas might hinder development, but innovation was the key to development. For university students, we are fortunate to be in a good learning environment. We should not be limited to textbook knowledge, but to seek knowledge with independent thinking.
Hawking himself was the best example of this spirit of exploration. Even though he was confined to a wheelchair for 20 years due to Lou Gehre's disease, he still made great contributions to the field of theoretical physics. His story tells us that no matter what kind of predicament we are in, we should not give up the pursuit of knowledge and the exploration of truth. This spirit of scientific exploration inspires us to move forward on the academic path, not afraid of authority, and bravely put forward our own opinions.
Second, a new understanding of physics knowledge
" A Short History of Time " attempted to explain advanced physics knowledge in an easy-to-understand manner. It led the readers to explore the strange realm of outer space, introducing the concepts of distant galaxies, black holes, quarks, antimatter, and so on. Starting from quantum physics and the image of the universe, he gradually delved into black hole theory and space-time theory.
For non-physics majors, this book was like opening a door to the mysterious world of physics. It gave us a preliminary understanding of the special theory of relativity, the nature of time, the origin of the universe, and other mysteries of cosmos. The book's explanation of what the universe is like, space and time, and other ancient questions, stimulated our interest in physics and made us realize the infinite possibilities of science. For example, the description of black holes in the book gave us a more intuitive understanding of this mysterious celestial body. It was no longer just an abstract scientific concept, but a fascinating and unknown research object.
III. In-depth Reflection on the Relationship between the Universe and Humanity
The universe depicted in the book was an extremely grand existence. When we read the book in depth, it was as if we were standing on the sidelines of the development of the universe, and we would deeply feel the insignificance of human beings. In the development of human civilization, different cultures had different mythological explanations for the origin of heaven and earth. However, from a scientific point of view, these were just the imagination of the unknown in the early days of mankind.
In the face of the vast universe, the Earth, the Sun, and even the Milky Way seemed insignificant, especially humans. However, this does not mean that we should despair about the world. On the contrary, it is precisely because of the insignificance of human beings that we should live with gratitude. Although we are small, we have the ability to think and explore. The wise men of mankind had always been working hard to explore the mysteries of the universe. From Einstein's pursuit of the unified field theory to Hawking's exploration of the unified field theory in this book, this series of efforts reflected the determination of mankind to challenge the unknown.
IV. Correct attitude towards the development of scientific theories
Hawking's attitude toward the development of scientific theories in the book also gave us a lot of inspiration. New theories were often attacked when they first appeared, and when they were proven correct, people would laugh at the shortcomings of the old theories. But we should recognize that even many of the theories that are widely accepted today are only conjectures.
Newton's theory of mechanics and Einstein's theory of relativity were both regarded as truths in different historical periods, but as science developed, we discovered that they both had limitations. This reminded us that when dealing with scientific theories, we should not be limited to a specific framework. We must maintain the ability to think flexibly. In university studies and future research, we must accept new theories with an open mind, while respecting the contributions of old theories in the development of science.
In short, A Short History of Time was not just a popular science book for college students. It was also a treasure trove of ideas that could influence our worldview, cultivate our spirit of scientific exploration, and guide us to treat scientific theories correctly. By reading this book, we can stand on the shoulders of giants and look at the universe, science, and human development from a broader perspective.
" A Short History of the Future: Legends of the Intelligent Era " was equally exciting. Everyone was welcome to click and read it!
Will the reform of the new college entrance examination affect the re-examination?The new college entrance examination reform had a certain impact on repeat students. First of all, in order to ensure the fairness of the college entrance examination for freshmen, some provinces had already stipulated that public high schools were not allowed to use teaching resources to set up repeat classes. For example, Guizhou, Sichuan, Yunnan, Hei Long Jiang, and other provinces had explicitly prohibited public high schools from accepting repeat students. Secondly, the new college entrance examination implemented the "3+1+2" model. The original liberal arts and sciences were formally changed into two major combinations of history and physics. There were various combinations, but the most competitive combination was the combination of history, politics, and geography, and the combination of physics, chemistry, and biology. If the repeaters did not have an ideal combination in the original combination, they could make adjustments, such as changing it to the combination of physics, chemistry, and geography, or the combination of history, politics, and biology. Moreover, most repeaters could enter the freshman class to study. Moreover, under the new college entrance examination model, the 150 points for language, mathematics, and foreign languages remained unchanged. Physics and history were included in the total score according to the original score. Geography, politics, chemistry, and biology were implemented with a point allocation system. The points were included in the total score according to the grade conversion. Repeaters needed to adapt to this change in the scoring method. However, there was no official document issued by the relevant departments to cancel the repeat, so it was still feasible.
While waiting for the TV series, you can also click on the link below to read the classic original work of "Dafeng Nightwatchman"!
The turning point of history: Shang Yang's reform** Title: Shang Yang's Reform-The Historical Turning Point of the Fate of Qin State **
** 1. The background of the reform **
During the Spring and Autumn Period, the Qin State was far behind the Three Jin States in terms of politics, economy, culture, military, and many other aspects. At that time, the international situation was grim. As the first country to successfully reform, Wei urgently needed land and population. Qin became the ideal target for its westward expansion. The battle on the west of the river caused Qin to lose the land on the west of the river. Hangu Pass fell, and the Wei army approached Yueyang. The years of war caused Qin's economy to collapse and its population to decrease sharply. The Qin State had two choices: to fight a bloody war with the Wei State or to cede territory and seek peace in order to develop.
** 2. The cause and motivation of the reform **
(I) Duke Xiao of Qin's ambition to strengthen the country
After Duke Xiao of Qin ascended the throne, facing the crisis of Qin State, he issued an order to seek talents, hoping for capable people to come up with strategies to make Qin State strong. This strong desire for a strong country became the direct driving force for the reform.
(II) Inevitable Requirements for the Development of the Production Forces
Basically, the development of productive forces prompted the change of production relations. The Spring and Autumn Period belonged to the Bronze Age, and the Warring States Period entered the Iron Age. The advancement of iron-smelting technology gradually replaced bronze ware. Agricultural production required more labor and land, and the old slavery production relations could no longer adapt, so reform became inevitable.
** 3. The content of the reform **
(I) Talent selection system
Shang Yang had improved the talent selection system and created a twenty rank military merit system. Regardless of their status, as long as they met the requirements, they would be promoted and receive corresponding rewards. It was clear that the promotion criteria was to capture the head of an enemy soldier. If they captured a head, they would be awarded the title of a public official, and the government would give them houses, land, servants, and other rewards.
(II) Land System
Put forward the theory of changing fields, abolish well fields, open up paths, so that fields can be bought and sold, establish feudal land ownership, and solve the problem of barren land.
(3) The tax system
Abolish the old tax system and levy taxes on agriculture, industry, and commerce according to land, workshops, and transactions, so as to achieve fair taxation and promote the transformation of the people's wealth into the country's wealth.
(IV) Agricultural Incentives
The theory of agricultural nobility encouraged farmers to work hard, and those who paid more taxes and grain could obtain the title of state.
(5) Military incentive system
The theory of military merit stipulated that those who beheaded in battle would be rewarded according to the number of heads they captured, which made the Qin army a tiger and wolf army.
(6) Administrative system reform
The prefectures and counties would abolish the autonomous fiefs of the old aristocratic families of Qin State and establish two levels of government. They would be directly under the jurisdiction of the national government and unify the power of the entire country.
** 4. The influence and significance of the reform **
(I) Positive Impact on Qin
1. On the economic side, the economy soared, and the land system and tax system improved, promoting the development of agriculture, industry, and commerce.
2. In terms of population, the population increased rapidly.
3. In terms of administration, there was a fundamental improvement and administrative efficiency increased.
4. In terms of military, the results of the army's construction were remarkable, and the Qin army's combat strength had increased greatly.
(II) Far-reaching significance to future generations
Although Shang Yang had died, his new laws continued to be implemented in Qin. His academic ideas were inherited by later generations and became an important source of ideas for the planning of feudal society. He was also praised by later generations as the chief planner of feudal society and the epitome of Legalism.
** 5. Resistance to the reform and Shang Yang's ending **
The reform involved the re-distribution of interests, which harmed the interests of the noble lords and abolished most of their privileges, including the hereditary system. If they broke the law, they would also be punished according to the law. This caused strong opposition from those with established interests, resulting in great resistance during the reform process. In the end, Shang Yang was tortured to death because his reform had offended too many people. However, the results of his reform continued in the Qin country, pushing the Qin country towards prosperity.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Let’s support this author and help her pay for college