Examples of inventions and creations

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".

Edison's greatest achievement was the invention of the electric light. However, among his inventions, nothing shocked the society at that time more than the phonograph. 1in the autumn of 877, the phonograph invented by Edison caused a sensation in journalists and newspapers in new york.

A large number of reports poured in to report this breaking news. Once this invention came out, it aroused the rapid and huge fanaticism of the society for several months at that time. The railway specially opened a special car to visit, and many people began to distrust this invention.

A bishop of a church suspected that he had hidden something to talk about in it first, so he recited a series of special terms in the Bible to the radio at the highest speed.

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.

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 the idea of transmitting human voice to a distance by using current sprouted.

So that people thousands of miles away can 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 transfers 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 you put an electromagnet 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.

He cried painfully, "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.

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.

At first, it was gesturing, and later, language was invented to transmit information through marathon running. Later, writing was invented and mail delivery began, so there was an ancient post office. At that time, the postage was calculated according to the distance of mail delivery and the number of letters and papers.

That is, the "progressive postage system", and the charging standard is also very high. If the river overflows and the bridge collapses, letters will travel hundreds of kilometers. In a word, the postage is insanely high. Such expensive postage is daunting to ordinary people.

They think sending letters is a luxury. The 65438+1930s was the golden age of reform, which created a generation of heroes. Rowland hill invented the world's first stamp and set an epoch-making milestone in the world postal history.

After years of investigation, rowland hill advocates that the postage should be greatly reduced, and the postage of 1p should be charged regardless of the distance. He also proposed to use "beautifully printed postal supplies" to pay postage in advance. The size of this paper is similar to the size of the stamp pattern.

The back is coated with a thin layer of glue. As long as it gets wet, people can stick it on the letters. This is rowland hill's original idea about stamps. Therefore, rowland hill wrote to the government and put forward his own reform suggestions.

1839 August 17, Queen Victoria approved this motion and decided that Britain would implement the 1p unified postage law from June 1840 65438+ 10. Rowland hill was also appointed by the Queen to be in charge of postal reform. In order to turn the creative 1p stamp into reality.

Rowland hill requires that stamps should be designed with anti-counterfeiting performance and credibility among the public. So the profile of Queen Victoria created by William Wayne was adopted, which not only showed the authority of issuing stamps.

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".

During that period, earthquakes often occurred. Sometimes several times a year. A big earthquake will bring a lot of harm to the people and the country. At that time, the emperor and ordinary people regarded the earthquake as an ominous sign and thought it was caused by ghosts and gods.

However, Zhang Heng does not believe in supernatural evil. After careful investigation and experiment of recorded earthquake phenomena, he invented an instrument that can detect earthquakes, called "seismograph". The seismograph is made of bronze and shaped like a jar with eight dragons cast around it.

The faucet extends in eight directions. Every dragon has a small copper ball in its mouth. There is a toad with a big mouth under the tap. When there is an earthquake in any direction, the dragon mouth in that direction will automatically open and spit out copper balls.

The copper ball fell into toad's mouth and made a loud noise, telling people that there was an earthquake there. One day in February 138, the seismograph suddenly opened its mouth to the west and spit out a copper ball. This is a report about the earthquake in the west.

However, there was no sign of an earthquake in Luoyang that day, let alone what happened nearby. As a result, there was a lot of discussion in court, saying that Zhang Heng's seismograph was a lie.

A few days later, someone rode a fast horse and reported to the court that there was a big earthquake in Jincheng and Longxi, more than 1000 miles away from Luoyang, and even the mountains collapsed. Guys, this is really convincing.

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.

At this time, he put his hand close to the key and suddenly saw the electric spark jumping between the key and his finger. At the same time, he felt a sharp pain in his fingers. This experiment proves that thunder in the sky is actually a large-scale discharge phenomenon.

Therefore, Franklin thinks that if a metal wire is installed in a tall building and the lower end of the metal wire is grounded, according to the principle of tip discharge, the danger caused by lightning strike to the building can be avoided. This led to the invention of lightning rod.

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.