the light is a great invention of human beings to conquer the night.
From ZuoWen.Cn] It took two years to find a permanent job. Obtained Swiss nationality in 191. In 192, he was hired as a technician by Swiss Patent Office in Bern, engaged in technical appraisal of invention patent applications. He used his spare time to carry out scientific research and made historic achievements in three different fields of physics in 195, especially the establishment of special relativity and the proposal of light quantum theory, which promoted the revolution of physics theory. In the same year, he obtained his Ph.D. degree from the University of Zurich with his thesis "A New Method for Determining Molecular Size". In 198, he was a part-time lecturer at the University of Berne. Since then, he has been destined to work in academic institutions. In 199, he left the Patent Office as an associate professor of theoretical physics at the University of Zurich. In 1911, he was a professor of theoretical physics at the German University in Prague, and in 1912, he was a professor at his alma mater, swiss federal institute of technology zurich. In 1914, at the invitation of M Planck and W nernst, he returned to Germany as the director of the Institute of Physics of Emperor William and a professor at Berlin University until 1933. In 192, at the invitation of H·A· Lorenz and P. Ehrenfest, he was also a special professor at Leiden University in the Netherlands. Less than four months after returning to Germany, World War I broke out, and he devoted himself to public and underground anti-war activities. After eight years of arduous exploration, he finally established the general theory of relativity in 1915. His prediction that the light will bend after passing through the gravitational field of the sun was confirmed by the observation results of the total solar eclipse by the British astronomer A.S. Eddington and others in 1919, which caused a sensation all over the world. Einstein and the theory of relativity became household names in the West, and also attracted vicious attacks from chauvinists, militarists and anti-Semitists in Germany and other countries. After the Nazis seized the German regime in January 1933, Einstein was the primary target of persecution in the scientific community. Fortunately, he was teaching in the United States at that time and was not killed. After returning to Europe in March, he took refuge in Belgium. On September 9, he found that there was a Gestapo who was going to assassinate him. He crossed the sea in the starry night and moved to Princeton, USA in October, where he served as a professor at the newly-built Institute for Advanced Studies until he retired in 1945. He obtained American citizenship in 194.
in p>1939, he was informed of the discovery of uranium nuclear fission and its chain reaction. Under the impetus of Hungarian physicist L. szilard, he wrote to President Roosevelt and suggested developing an atomic bomb to prevent the Germans from taking the lead. On the eve of the end of World War II, the United States dropped atomic bombs over two Japanese cities, and Einstein was strongly dissatisfied with this. After the war, there was a unremitting struggle to launch a peaceful movement against nuclear war and the danger of fascism in the United States.
He died of ruptured aortic aneurysm in Princeton on April 18th, 1955. According to his will, no funeral will be held, no grave will be built, no monument will be erected, and the ashes will be scattered in a place that will always be kept secret, so as not to make any place sacred.
Apple and gravity
-Newton's story
Isaac Newton (1642-1727) was a British scientist. He discovered the law of gravity, established the basic system of classical mechanics, made creative contributions in optics, heat and astronomy, and was one of the founders of calculus in mathematics.
one night more than 3 years ago, a young man sat in the garden and watched the moon. He looked up at the starry sky and wondered why the moon would go around the earth without falling. Suddenly, something hit him on the head, which was not a very heavy blow and woke him up from his meditation. He looked down and found that it was a big ripe apple that fell from the tree. He picked up the apple and was lost in thought again: why did the apple fall to the ground vertically instead of flying to the sky? It must be that the earth has some kind of gravity, which leads everything to the earth. The young man's eyes lit up: the apple is like this, and so is the moon. The moon must be running at a high speed under the attraction of the earth's gravity. Because of gravity, it can't stay away from the earth; Because of the speed, it won't fall like an apple ... The night is getting deeper and deeper, and the young man smiled happily with an apple in his hand. He is the British scientist Newton who discovered gravity. This year, he was only 24 years old.
Newton was born in England on December 25th, 1642. His father was a yeoman and died two months before he was born. He has been living a poor and lonely life with his elderly grandmother since he was two years old.
Newton entered Gran Town Primary School at the age of 12. He loved science very much since he was a child, and often made some clever little machines. He made a small water clock by himself, which was modeled after the hourglass. With a small pool, the water in the pool flows out slowly, and the water surface gradually drops, and the buoy on the water surface gradually drops, thus driving the pointer to rotate and indicating the time.
Flying kites is a favorite game for children. The clever little Newton played a new trick: one night, he tied a paper lantern to a kite and put it in the sky. Many people who saw the kite in the air cried, "Comet!" " When people know that the lanterns on kites are shining in the sky, they suddenly realize.
Newton is a strong-willed child. At school, when he was insulted by his big classmates, he always fought back desperately. He often said: "No matter what you do, as long as you are willing to work hard, there is no failure." It is this tenacious spirit that led Newton to climb the peaks of scientific mountains one after another.
When Newton was engaged in scientific research, he often forgot the existence of himself and others and fell into a state of "obsession".
once, he invited his friends to his home. When he went out to get the wine, he suddenly remembered the calculation about the moon's orbit, so he forgot about the treat and was busy calculating it. Knowing Newton's temper, my friend had to eat the chicken on the plate and spit the bone on the table. Newton finally finished the calculation, and then remembered the treat. When I walked back to the table, I saw that the chicken had only bones left. He suddenly realized, "I thought I hadn't eaten yet, but I had already eaten."
Although Newton has made great achievements in science, he is still very modest. He once said, "If what I see is a little farther than Descartes, it is because I stand on the shoulders of giants."
The apple tree in the garden of Newton's hometown in Ursop, England, has been carefully protected. In 182, after the tree died, it was divided into several sections and preserved in the Royal Society and other places. This apple tree attached to science not only bears the imprint of Newton's rigorous style of study, but also spreads Newton's virtue of modesty.
Bill Gates, a gifted boy
With his wisdom and hard work, American Bill Gates magically turned $9 into $13.9 billion in 2 years, which surprised the world. Some people say that Gates and his Microsoft company will change the whole world.
On the evening of October 28th, 1955, the lovely little Gates was born. Although no one could have predicted that the child would be a great man at that time, everyone loved him. Gates loves reading very much. When other children are addicted to TV cartoons, he has learned to sit alone in his room and read his father's books like a great scholar. He is immersed in books all day, and sometimes he can read the thick World Book Encyclopedia for hours without moving.
gates Jr. is naturally energetic and very active. As a baby, he liked to keep the cradle shaking for a long time, which seemed very interesting. To this day, he still likes to keep shaking, which has almost become a well-known Gates feature of American women and children. When he was seven or eight years old, his mother served as a community service worker and often took him to school to explain the history of Seattle to students. Gates always sat in the front row and listened attentively, but at this time he couldn't find his active habit at all.
Gates was ambitious since he was a child. When he was in the fourth grade, he said to his good friend, "It is better to be an oak tree on a bald hill than to be a grass in an oasis."
like many children, he dreams of becoming a hero among people. For the homework assigned by the teacher, whether it is playing musical instruments or writing a composition, all should be done seriously, even if it takes a long time, we should try our best to be the first. Once, the teacher asked everyone to write a story, no more than 2 pages, but he wrote 1 pages. Gates is good at thinking and likes innovation. He thinks that everyone should have his own inventions.
like many American children, he was a boy scout. During the long March, other children complained bitterly. Gates wore out his feet and was bleeding, but he endured the pain and fatigue and persisted in the end.
Gates was born into a noble family, but his parents were not extravagant. Under the arrangement of the mother, the family's meals and outings, including the children's clothes, are in good order. This rigorous and meticulous style of family naturally influenced Bill Gates and formed his frugal habit.
"Time" and "concept" are the two conditions that Gates pays most attention to. Write down such a motto clearly in his reading notes: "Opportunity plus time equals money." Since he studied in middle school, he has been fascinated by computers, and since then Gates has formed an indissoluble bond with computers.