K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

16 tháng 12 2019

Did Bell .......successfully....... demonstrate his invention?

16 tháng 12 2019

Did Bell ........successed...... demonstrate his invention?

~ Good evening for you ~

#Maymay

30 tháng 12 2021

successfully - unsafe - comfort - exhibit

8 tháng 10 2017

The telephone

I. One of the inventions made in the world of science and technology is the telephone. This instrument has become an important part in our daily life The word "telephone " comes from two Greek words" tele " and " phone". These words mean "far" and "sound". The telephone uses electricity to carry sound over distance. So you see, the two Greek words tell us exactly what the instrument does. Since its invention by Alexander Graham Bell in 1876, the design of the telephone set has changed greatly....
Đọc tiếp

I. One of the inventions made in the world of science and technology is the telephone. This instrument has become an important part in our daily life The word "telephone " comes from two Greek words" tele " and " phone". These words mean "far" and "sound". The telephone uses electricity to carry sound over distance. So you see, the two Greek words tell us exactly what the instrument does. Since its invention by Alexander Graham Bell in 1876, the design of the telephone set has changed greatly. However, the way the telephone works is still the same. I. What has become an important part in our daily life? 2. What do the words " tele" and" phone " mean? 3. How does the telephone carry sound over a distance? 4. Who invented the telephone? 5. When was the telephone invented? 6. Has the design of the telephone set changed a lot since its invention? 2.Alexander Graham Bell was born in Scotland. He emigrated to Canada first and then to the USA in 1870s In America, he worked with the deaf-mutes at Boston University. Soon, Bell started experimenting with ways of transmitting speech over a long distance. He worked with Thomas Watson, his assistant. Bell and Watson conducted many experiments. He successfully demonstrated his invention to the public at countless exhibitions, he invented the telephone. By 1877 the first telephone was in commercial use. 1. Where was Alexander Graham Bell born ? 3. Who did Bell work with at Boston University? 4. What did Bell invent ? 5. Did Bell conduct many experiments in America? 6. Where did he successfully demonstrate his invention? 2. Where did he emigrate first ?

1
20 tháng 9 2018

. 1. Where was Alexander Graham Bell born ?

In Scotland

2. Where did he emigrate first ?

He emigrated to Canada first

3. Who did Bell work with at Boston University?

Thomas Watson

4. What did Bell invent ?

The telephone

5. Did Bell conduct many experiments in America?

Yes, he did

6. Where did he successfully demonstrate his invention?

At the countless exhibitions

13 tháng 3 2020

1. He was born in 1847 in Endinburgh, Scotland

2. He worked with deaf-mutes

3. Thomas Edison was Bell's assistant

4. Bell demonstrated his invention at a lot of exhibitions

2 tháng 12 2021

Alexander Bell successfully demonstrated his invention at a lot of exhibitions.

2 tháng 12 2021

Alexander Bell successfully demonstrated his invention at a lot of exhibitions

1 tháng 11 2023

Bell displayed his invention at a lot of exhibitions.

14 tháng 11 2021

demonstrated

14 tháng 11 2021

has demonstrated

10 tháng 9 2018

Alexander Graham Bell was born in Edinburgh, Scotland. His family was known for teaching people how to speak English clearly (elocution). Both his grandfather, Alexander Bell, and his father, Alexander Melville Bell, taught elocution. His father wrote often about this and is most known for his invention and writings of Visible Speech.[1] In his writings he explained ways of teaching people who were deaf and unable to speak. It also showed how these people could learn to speak words by watching their lips and reading what other people were saying.

Alexander Graham Bell went to the Royal High School of Edinburgh. He graduated at the age of fifteen. At the age of sixteen, he got a job as a student and teacher of elocution and music in Weston House Academy, at Elgin in Morayshire. He spent the next year at the University of Edinburgh. While still in Scotland, he became more interested in the science of sound (acoustics). He hoped to help his deaf mother. From 1866 to 1867, he was a teacher at Somersetshire College in Bath, Somerset.

In 1870 when he was 23 years old, he moved with his family to Canada where they settled at Brantford, Ontario.[1] Bell began to studycommunication machines. He made a piano that could be heard far away by using electricity. In 1871 he went with his father to Montreal, Quebec in Canada, where he took a job teaching about "visible speech". His father was asked to teach about it at a large school for deaf mutes in Boston, Massachusetts, but instead he gave the job to his son. The younger Bell began teaching there in 1872.[1] Alexander Graham Bell soon became famous in the United States for this important work. He published many writings about it in Washington, D.C.. Because of this work, thousands of deaf mutes inAmerica are now able to speak, even though they cannot hear.

In 1876, Bell was the first inventor to patent the telephone, and he helped start the Bell Telephone Company with others in July 1877.[1] In 1879, this company joined with the New England Telephone Company to form the National Bell Telephone Company. In 1880, they formed the American Bell Telephone Company, and in 1885, American Telephone and Telegraph Company (AT&T), still a large company today. Along with Thomas Edison, Bell formed the Oriental Telephone Company on January 25, 1881.

Bell married Mabel Hubbard on July 11, 1877. He died of diabetes at his home near Baddeck, Nova Scotia in 1922.

10 tháng 9 2018

cảm ơn nhéhihihihi

25 tháng 8 2021

:v

successfully

25 tháng 8 2021

thank kiu :P