Edison only attended primary school for three months in his life, and his knowledge came from his mother's teaching and self-study. His success should be attributed to his mother's understanding and patient teaching since childhood, which made Edison, who was originally considered an imbecile, become a world-famous "king of invention" when he grew up.
Edison was curious about many things since he was a child, and he liked to try it himself until he understood the truth. When he grew up, he devoted himself to research and invention according to his interest in this field. He established a laboratory in New Jersey, and invented the electric light, telegraph, phonograph, film machine, magnetic mineral analyzer, crusher and so on for more than 2000 kinds of things in his life. Edison's strong research spirit made him make great contributions to the improvement of human lifestyle.
"Waste, the biggest waste is wasting time." Edison often said to his assistant. "Life is short, so we should try to do more with less time."
One day, Edison was working in the laboratory. He handed his assistant an empty glass bulb without a lampholder and said, "Measure the capacity of the bulb." He bowed his head to work again.
After a long time, he asked, "What's the capacity?" He didn't hear the answer, turned to see the assistant measuring the circumference and inclination of the light bulb with a soft ruler, and poured the measured figures on the table for calculation. He said, "Time, time, why does it take so much time?" Edison came over, picked up the empty light bulb, filled it with water, handed it to his assistant, and said, "Pour the water into the measuring cup and tell me its capacity at once."
The assistant read out the numbers at once.
Edison said, "How easy it is to measure. It is both accurate and time-saving. Why didn't you think of that? " ? Still counting. Isn't that a waste of time? "
The assistant's face turned red.
Edison murmured, "Life is too short, too short. Save time and do more! " "
Edison was a poor worker before he became famous. Once, his old friend met him in the street and said with concern, "look, this coat on you is very worn." You should get a new one. "
"Need it to be? Nobody knows me in new york. " Edison answered indifferently.
A few years later, Edison became a great inventor.
One day, Edison met that friend again in the street of new york. "Oh," exclaimed my friend, "why are you still wearing this old coat? This time, I have to change a new one anyway! "
"Need it to be? Everyone here already knows me. " Edison still answered casually.
Darwin explored the biological chain
1843 one day in late spring, a young man in his early thirties walked out of a small town called Dunn, which was more than 0/0 kilometers away from London, England. He is a biologist Darwin.
It's a sunny day, and some beautiful butterflies and bees are flying around in the fields full of flowers. Darwin went straight to the clover field full of pink flowers. He came to observe, analyze and study the cereal plants in the field.
Darwin first observed the flowers of clover. He wants to see how these flowers breed. Who is their matchmaker? Darwin saw many soil bees flying around the clover. Some soil bees stopped on the flowers and were inserting their nectar-sucking organs deeply into the nectaries of stamens to suck nectar. He knows that these bumblebees are matchmakers, helping clover pollinate and reproduce. Darwin observed for several days and saw that there were many bees this year. In summer, clover bears many seeds. Clover harvest.
The following spring, Darwin went to observe again. He found that few native bees collected honey in clover fields this year; When harvesting in summer, the seeds of clover are also greatly reduced; Clover is not harvested. This is obviously because there are fewer soil bees, which reduces the opportunity to pollinate clover. He was thinking again: Why are there fewer ground bees this year? So, Darwin pursued the native bee again. Finally, he found a beehive in some rock holes and tree holes. At the same time, he made a new discovery-many beehives were eaten up and destroyed by rats. In this way, Darwin understood that it is the number of mice that determines the number of ground bees. The more rats there are, the more hives it destroys and the fewer bumblebees there are.
Later Darwin observed that the number of mice is determined by the number of cats. Clover, bees, mice and cats, seemingly completely unrelated animals and plants, have such an interesting and complicated relationship. In this way, according to the mutual restriction and interdependence between organisms, after further in-depth observation and research, Darwin finally wrote the origin of species and other masterpieces, and became an outstanding scientist and the founder of biological evolution theory in the world in the19th century.
The story of bell invented the telephone
Nowadays, the telephone has entered thousands of households. Do you know who invented the telephone?
Bell is the man who invented the telephone. He was born in England on 1847. When he was young, he and his father taught the deaf together. He once wanted to make a machine to let deaf people see sound with their eyes.
1873, Bell, who became a professor at Boston University in the United States, began to study the device of transmitting multiple telegrams on the same line-multiplex telegrams, and he sprouted the idea of using electricity to transmit people's voices to far places and let people thousands of miles away talk face to face. So bell began to study the telephone.
That was June 2nd, 1875. Bell and his assistant Watson are experimenting with multiple telegrams in two rooms respectively. An accidental accident inspired Bell. In Watson's room, there is a spring stuck to the magnet of the telegraph. When Watson pulled it away, it shook. At the same time, Bell was surprised to find that the spring on the telegraph in his room vibrated and made a sound. It is the current that transmits vibration from one room to another. Bell's mind suddenly broadened. 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 large and small currents in the electromagnet coil. This fluctuating current travels far away along the wire, so won't the same vibration and sound appear on similar equipment 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 this new idea. In an experiment, a drop of sulfuric acid splashed on Bell's leg, causing him to shout, "Mr. Watson, I need you, please come to me!" " "This sentence is the phone through the wire to Watson's ear, the phone succeeded! 1On March 7th, 876, Bell became the patentee of telephone invention.
Bell obtained 18 patents in his life and 12 patents in cooperation with others. He envisions burying telephone lines in the ground or hanging them in the air, and connecting them to houses, villages and factories ... so that you can make phone calls directly from anywhere. Today, Bell's vision has become a reality.
All three of them are.