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, but turned to see the assistant measuring the circumference and inclination of the light bulb with a soft ruler, holding the measured figures and bending over the table to calculate them. 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.
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 wants to make a machine that can make 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 reached Watson's ear by telephone through wires, and the telephone 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.
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