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Questions and Answers
What was Alexander Graham Bell's first invention?
What was Alexander Graham Bell's first invention?
- A mechanical man
- A device for dehusking wheat grain (correct)
- A type of electrical transmitter
- An automatic voice generator
Bell's father was a scientist who studied sound.
Bell's father was a scientist who studied sound.
True (A)
What nickname was Alexander Graham Bell known by to his close friends and family?
What nickname was Alexander Graham Bell known by to his close friends and family?
Aleck
Bell's mother, Eliza Grace Bell, was an accomplished _______.
Bell's mother, Eliza Grace Bell, was an accomplished _______.
Match the following family members of Alexander Graham Bell with their roles:
Match the following family members of Alexander Graham Bell with their roles:
Which of the following did Bell experiment with at the age of nineteen?
Which of the following did Bell experiment with at the age of nineteen?
Bell was encouraged by his mother's deafness to work with deaf people.
Bell was encouraged by his mother's deafness to work with deaf people.
What system did Bell's father develop for teaching speech sounds?
What system did Bell's father develop for teaching speech sounds?
Bell's interest in speech led him to study how we make _______.
Bell's interest in speech led him to study how we make _______.
Bell's work with sound led him to concentrate on using what to transmit sound?
Bell's work with sound led him to concentrate on using what to transmit sound?
What was 'Visible Speech' primarily used for?
What was 'Visible Speech' primarily used for?
Helen Keller was a student in Alexander Graham Bell's first class at his School for the Deaf.
Helen Keller was a student in Alexander Graham Bell's first class at his School for the Deaf.
Who did Bell collaborate with to develop the telephone?
Who did Bell collaborate with to develop the telephone?
Bell made the first ever telephone call saying, 'Mr Watson, come here. I want to see ______.'
Bell made the first ever telephone call saying, 'Mr Watson, come here. I want to see ______.'
Match the following events to their corresponding years:
Match the following events to their corresponding years:
What was the primary claim made against Alexander Graham Bell regarding the telephone?
What was the primary claim made against Alexander Graham Bell regarding the telephone?
Bell faced over 550 successful patent challenges concerning the telephone.
Bell faced over 550 successful patent challenges concerning the telephone.
In what city did Bell open his first School for the Deaf?
In what city did Bell open his first School for the Deaf?
The Bell Telephone Company was established in ______.
The Bell Telephone Company was established in ______.
What was the primary function of a patent?
What was the primary function of a patent?
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Study Notes
Alexander Graham Bell
- Born in Edinburgh, Scotland in 1847
- Father, Alexander Melville Bell, was a phonetician
- Mother, Eliza Grace Bell, was a pianist
- Home-schooled by his mother
- Nickname "Aleck"
- Had two brothers: Melville James Bell and Edward Charles Bell
Early Inventions
- At age 12, Bell built his first invention, a device for dehusking wheat
- Invented a device with rotating paddles and nail brushes for a flour mill
- Invention was used in the mill for several years
Sound Explorations
- Became interested in speech and how sounds are made
- Invented a mechanical man with bellows to push air through its windpipe
- At 19, conducted experiments with tuning forks to explore sound transmission
- Sent his findings to his father's colleague, Alexander Ellis
- Ellis informed Bell that Herman von Helmholtz had already published similar experiments
Developing the Telephone
- Inspired by Helmholtz's work, Bell focused on using electricity to transmit sound
- Worked with Thomas Watson, a skilled electrician
- On March 10, 1876, Bell made the first telephone call
- Called "Mr Watson, come here, I want to see you!"
Work with Deaf People
- Mother was deaf
- Father developed "Visible Speech" to show how different speech sounds are made
- Bell helped demonstrate and teach Visible Speech to deaf people
- Opened his own School for the Deaf in 1872
- First class included Helen Keller, who later became the first deaf and blind person to earn a university degree
The Bell Telephone Company
- Bell started public demonstrations of the telephone in 1876
- Set up the Bell Telephone Company in 1877
- By 1886, over 150,000 people in the USA owned telephones
Telephone Controversy
- Several scientists claimed to have invented the telephone before Bell
- Bell filed a patent for his telephone in February 1876
- Elisha Grey filed a patent caveat on the same day
- Elisha Grey claimed that Bell stole his ideas for the telephone
- Bell's claim as the inventor of the telephone was approved in March 1876
- Bell Telephone Company faced over 550 patent challenges throughout the years
- None were successful, and Bell is still considered the inventor of the first successful telephone
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