Is the inventor of the telephone a beautiful woman?

The inventor of the telephone is an Englishman.

Alexander Bell

Bell was born into an acoustic family in England and later moved to America. Gain has been established in Boston.

Deaf and dumb

Normal school. He studied for professional reasons.

Listen to too much.

And the physiological function of speech. Later hired as

Boston University

Professor of Sound Physiology, 1873 He resigned as a professor and began to concentrate on developing the telephone.

To develop the telephone, we must first turn the sound signal into an electrical signal, and then turn the electrical signal into a sound signal. Before Bell, many people had been studying this problem. 1875 chainsaw at work.

cable

This application can compare electrical signals with

mechanical movement

interchangeable

Electromagnet

This inspired him. bel

Start designing

Electromagnetic telephone. He initially put

tuning fork

When placed in front of a coil with an iron core, the vibration of the tuning fork will cause the iron core to move accordingly, resulting in

Faraday current

The current signal is transmitted to the other end of the wire and converted into a sound signal. Later, Bell changed the tuning fork into a metal plate that can vibrate with the sound, and changed the iron core into.

bar magnet

After repeated experiments, a practical telephone device was made. 1876, Bell obtained the telephone patent in the United States. He not only invented the telephone, but also established the first telephone company in the world.

There is also a saying that

The father of the telephone is not Bell.

Bell has always been recognized as the "father of the telephone". Xinhua/Midland

According to "

Daily Telegraph

"65438+February 1 report, as we all know, originally from Scotland, later.

Immigrate to the United States

about

Alexander Graham Bell

He was the inventor of the first telephone in the world, and he was awarded the title of "father of telephone". However, the latest declassified documents reveal that the inventor of the world's first telephone was not Bell at all, but a German science teacher named Philip Rice. The British telephone company discovered the secret 50 years ago, but kept it secret for commercial interests.

according to

london science museum

John Li Fen, the curator, said that he found the secret in the old documents of the museum. Newly discovered documents show that as early as 1947, shortly after the end of World War II, engineers of Standard Telephone and Telegraph Company (stc) tested a series of ancient telephones, some of which were invented long before Bell, the "father of telephone", invented the first telephone. The experimental results show that a telephone device invented by German science teacher Philip Rice can be used completely. This telephone was invented in 1863.

Heinrich Ignace Franz von Bibby

The first telephone came out 13 years ago. Scientists have found that although the sound transmitted by this mobile phone is very weak, it can work.

Therefore, the earliest inventor of the telephone was not Bell, nor was it.

Edison

!

However, there is still debate in academic circles about who is the real inventor of the telephone. Many books have recorded that this man named Bell turned the propagation of sound by current into reality in March 1876. Since then, humans have had the first telephone.