Alexander graham bell. Inventor of the telephone

Июль 26, 2022

Главная
Литература
Alexander graham bell. Inventor of the telephone

Содержание

2. *Born: March 3, 1847 *Parents: Alexander Melville Bell and Elisa Grace Symonds *Siblings: 2 brothers, Melville
3. Alexander Graham Bell grew up in Edinburgh, Scotland with his family. Childhood
4. Learning From the Family As a child, Bell inherited a musical talent from his mother, who
5. Hello Grandpa! When Bell was 13 years old, he spent a year with his grandfather in
6. Bell read books in the library about Herman von Helmholtz, a German scientist who experimented with
7. Early Life At the Age of 16, Graham began to teach music and speech at a
8. Tuberculosis-1870 In 1870, Bell’s two brothers died of tuberculosis. Since Bell was also threatened his family
9. After Graham was safe from catching the disease, his job led him to be a physiology
10. While Bell was in Massachusetts, he invented the harmonic telegraph, an instrument that makes it possible
11. On March 7, 1876, Bell recieved his patent for the telephone. The Telephone is Patented
12. “Mr.Watson, come here, I want you.” On March 10, 1876, Alexander Graham Bell was in his
13. The experiment they were working with had reeds that were thin and steel. One of the
14. When he did, Graham heard the vibration clearly through the newly invented ‘telephone’. Successful!
15. A Sad day in History On August 2, 1922, Alexander Graham Bell died at his home
17. Скачать презентацию

Слайд 2

Born: March 3, 1847
Parents: Alexander Melville Bell and Elisa Grace Symonds
*Siblings:

2 brothers, Melville and Edward

Alexander Graham Bell

Слайд 3

Alexander Graham Bell grew up in Edinburgh, Scotland with his family.
Childhood

Слайд 4

Learning From the Family
As a child, Bell inherited a musical talent

from his mother, who was a musician and also a portrait painter.

He was taught by his grandfather and father about public speaking.

Слайд 5

Hello Grandpa!
When Bell was 13 years old, he spent a

year with his grandfather in London. To Graham, this year was the “turning point of his life.”

Слайд 6

Bell read books in the library about Herman von Helmholtz,

a German scientist who experimented with electrical vibrations to make vowel sounds.

Herman von Helmholtz

He researched his experiments so that someday he might be able to reconstruct them in his own home.

Слайд 7

Early Life
At the Age of 16, Graham began to

teach music and speech at a boys school. Years later, Bell started teaching his fathers visual speech to deaf and hearing impaired children.

Bell at age 29

Слайд 8

Tuberculosis-1870

In 1870, Bell’s two brothers died of tuberculosis.
Since Bell

was also threatened his family decided to move to a healthier environment, Canada.

Слайд 9

After Graham was safe from catching the disease, his job

led him to be a physiology professor at Boston University in the United States.

Hello Boston! Good-bye Canada!

Слайд 10

While Bell was in Massachusetts, he invented the harmonic telegraph,

an instrument that makes it possible to send multiple telegraphs on one line.

Boston University

Слайд 11

On March 7, 1876, Bell recieved his patent for the

telephone.

The Telephone is Patented

Слайд 12

“Mr.Watson, come here, I want you.”

On March 10, 1876,

Alexander Graham Bell was in his testing room with his partner, Watson.

Слайд 13

The experiment they were working with had reeds that were

thin and steel. One of the reeds was stuck so Watson plucked it to try to fix it.

Reeds

Слайд 14

When he did, Graham heard the vibration clearly through the

newly invented ‘telephone’.

Successful!

Слайд 15

A Sad day in History
On August 2, 1922, Alexander Graham

Bell died at his home in Baddek Nova Scotia.