Edison was a famous American scientist and inventor. Because he has many inventions 1000, such as electric light, phonograph, film and storage battery, people call him "the king of inventions" and "the magician".
When these nouns are repeated word for word from the machine, people believe that this thing is really true, and they are all amazed. The newspaper called the phonograph a miracle of19th century.
2. The invention of 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.
He cried painfully, "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.
3. The story of rowland hill's invention of stamps.
The development of human society determines that it is impossible for human beings to survive on the earth for a long time on their own. Human beings need help and communication, and information transmission has become one of the basic activities necessary for human survival.
It also promotes Britain and the Queen through stamps. These stamps are printed in black ink. 1840 On April 5th, the first batch of stamps in the world-black penny stamps were finally printed.
4. The story of Zhang Heng inventing the seismograph.
In the history of China, there are many scientists besides scholars and emperors, and Zhang Heng is one of them. Zhang Heng has done many things in his life, but his most famous invention is the "seismograph".
5, the invention of lightning rod
1752, 46-year-old American scientist Franklin made a kite out of silk and put it into the sky with a string in a stormy weather. The metal key is tied to the lower end of the rope. When the string is wet by rain, it becomes a conductor.
Because of the invention of lightning rod, the world in which human beings live is a little safer. The invention of lightning rod seems to be an accident. A coincidence made a great man have a whim and produced an invention.