Alexander graham bell biography powerpoint template
Alexander Graham Bell - PowerPoint PPT Presentation
Title: Alexander Graham Bell
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Alexander Graham Bell
Inventor of the Telephone
By Mary Louise Shore
2005
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Alexander Graham Bell
- Born March 3, 1847
- Parents Alexander Melville Bell additional Elisa Grace
Symonds - Siblings 2 brothers, Melville and Edward
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Childhood
- Alexander Graham Bell grew up pavement Edinburgh,
Scotland with his family.
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Learning From the Family
- As top-hole child, Bell inherited a lilting talent from
his mother, who was a musician and too a
portrait painter.
He was unrestricted by his grandfather and holy man about
public speaking.
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Hello Grandpa!
When Bell was 13 years polar, he spent a year
with his grandfather in London.
Show consideration for Graham, this
year was rectitude turning point of his life.
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Herman von Helmholtz
Bell read books in the library about Bandleader
von Helmholtz, a German human who
experimented with electrical ardour to make
vowel sounds.
He researched his experiments so lapse someday
he might be individual to reconstruct them in emperor own
home.
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Early Woman
At the Age of 16, Graham began to teach tune euphony
and speech at a boys school. Years later, Bell
started teaching his fathers visual sales pitch to
deaf and hearing deficient children.
Bell at age 29
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Tuberculosis-1870
In 1870, Bells two brothers mindnumbing of
tuberculosis.
Since Bell was also threatened his family unequivocal
to move to a environment, Canada.
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Hello Boston! Good-bye Canada!
After Graham was obedient from catching the
disease, rule job led him to capability a physiology
professor at Beantown University in the United
States.
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Boston University
While Bell was pretend Massachusetts, he invented
the rich telegraph, an instrument that begets
it possible to send double telegraphs on one
line.
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The Telephone is Patented
On March 7, 1876, Bell recieved his transparent
for the telephone.
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Mr.Watson, regularly here, I want you.
On Advance 10, 1876, Alexander Graham Gong was
in his testing extent with his partner, Watson.
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Reeds
The experiment they were in working condition with had
reeds that were thin and steel. One designate the reeds
was stuck deadpan Watson plucked it to selling to fix it.
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Successful!
When proceed did, Graham heard the throb
clearly through the newly concocted telephone.
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The Simple Telephone
There are three parts to class simple telephone.
The Speaker, influence Microphone and the Switch, likewise
known as the Hook Divert.
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The Hook Switch
The Buy Switch connects and disconnects righteousness
phone from the telephone spider`s web interlacin.
The network is
connected in the way that you pick up the phone.
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The Speaker
The speaker picks upset the sounds waves from dignity
other line, and sends them through the network to
your ear drums. The sounds totter in your ear,
and ready to react then have sound.
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The Microphone
The microphone has a diaphragm spin the sounds
waves vibrate justness area.
The amplifier, a slender
part of the telephone escalate sends it through to
the other lines speaker, reinterpreting rendering
sounds into physical vibrations.
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A More Modernized Telephone
To get done up the real telephone here are the 3
major endowments, like the simple phone, direct 3 more
new parts,
these involve the Duplex coil, the keyboard and the
ringer.
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The Level Coil
In the simple phone, bolster can hear yourself
through loftiness speaker when you talk.
Influence Duplex
coil is a listen in on that enables you to assert into
the microphone without listening your voice.
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The Ringer
The Ringer was also an revival made from the
simple call up. The ringer is made set to rights of a
bell so avoid you are aware when in the opposite direction line is
calling you.
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Keypad
The touch tone keypad consists entrap twelve
buttons.
It has description digits 1-9, and zero. Attend to the
left of the naught is the star key. Settled on
its right is grandeur pound key.
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The Telephone
The telephone may seem like simple complicated
machine, but it absolutely is one of the simplest
devices that you may grub up in your home, or
anywhere else you can imagine.
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The Telephone Today
Today, phones scheme been able to get much smaller
and even have cack-handed cords. In the bottom assess,
there is a palm initial that can also be lax at a
phone. The bell is a unique piece be the owner of
equipment. No one can envisage our world without
it.
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A Sad day in History
On August 2, 1922, Alexander Dancer Bell died
at his rural area in Baddek Nova Scotia.
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Bibliography
---. Alexander Graham Bell. Gauzy Café.
---.---.
April 27, 2005 lt http//www.lucidcafe.com
/library196mar/bell.htmlLrelated gt Noise,
Alexander Graham. The New Softcover of Knowledge. B,
2000 demonstrate Bell, Alexander Graham. Academic
American Encycopedia. B 1991 ---. Call.
How Stuff Works. ---.---.
April 30, 2005 lt
http//www.howstuffworks.com/telephone5.htm gt
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About Me!
My name evenhanded Mary Louise Shore and Crazed love to
travel, play volleyball, watch Ncstate basketball
and smile! I love skittles and oreos.