Thursday, October 24, 2013

Thomas Edison

The below information is from the quick information that pops up on the side of the screen when you do an initial Google search of Thomas Edison.

Thomas Edison was a great inventor. He developed many things that improved life in the world greatly. Inventions like the phonograph, the motion picture camera, and a long lasting electrical light bulb. Edison was born in Milan, Ohio on February 11, 1847. He died October 18, 1931 in West Orange, New Jersey. His full name is Thomas Alva Edison.

Edison received many awards, such as:

-Congressional Gold Medal
-Distinguished Service Medal
-Franklin Medal
-John Fritz Medal
-Matteucci Medal
-Technical Grammy Award
-John Scott Legacy Medal and Premium
-Edward Longstreth Medal
-Rumford Prize

He had six children:

-Theodore Miller Edison
-Charles Edison
-Thomas Alva Edison Jr.
-Madeleine Edison
-William Leslie Edison
-Marion Estelle Edison


The tin foil phonograph was the first great invention by Edison in Menlo Park.
Here is a short paragraph from the above website talking about the phonograph and recording telephone messages.

While working to improve the efficiency of a telegraph transmitter, he noted that the tape of the machine gave off a noise resembling spoken words when played at a high speed. This caused him to wonder if he could record a telephone message. He began experimenting with the diaphragm of a telephone receiver by attaching a needle to it. He reasoned that the needle could prick paper tape to record a message. His experiments led him to try a stylus on a tinfoil cylinder, which, to his great surprise, played back the short message he recorded, "Mary had a little lamb."”

Electricity and the Light Bulb

Edison's greatest challenge was creating electric light. Popular belief says that Edison did not invent the light bulb, he just improved a fifty year old idea. Edison also had to invent seven system elements that would be required for the electric light bulb.
They are:

-The parallel circuit
-a durable light bulb
-an improved dynamo
-the underground conductor network
-the devices for maintaining constant voltage
-safety fuses and insulating materials
-light sockets with on and off switches

Edison Motion Pictures

Thomas Edison was interested in motion pictures before 1888. However, that year he decided to invent a camera for motion pictures when Eadweard Muybridge visited his laboratory in West Orange.
Here is a short paragraph from the same website:

Muybridge proposed that they collaborate and combine the Zoopraxiscope with the Edison phonograph. Although apparently intrigued, Edison decided not to participate in such a partnership, perhaps realizing that the Zoopraxiscope was not a very practical or efficient way of recording motion. In an attempt to protect his future, he filed a caveat with the Patents Office on October 17, 1888, describing his ideas for a device which would "do for the eye what the phonograph does for the ear" -- record and reproduce objects in motion. He called it a "Kinetoscope," using the Greek words "kineto" meaning "movement" and "scopos" meaning "to watch."”




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