Thomas Edison Speech

Course: COMM 2200-23
Date: 09/17/2014
Title: Thomas Edison and his obscure and sometimes unsuccessful projects.
Specific Purpose:   to inform my audience about some of the more obscure inventions of Thomas Alva Edison.
Central Idea: Thomas Edison is well-known for his inventions of the incandescent light bulb and phonograph, but he had many other obscure inventions as well.

Attention: How many of you have flipped a light switch, started a car, listened to the radio, or watched television this morning? None of this would have been possible without the contributions of “The Wizard of Menlo Park”, Thomas Alva Edison.
Topic: Most of us are aware of Edison’s inventions of the incandescent light bulb, the movie camera and the phonograph, but today I’d like to share with you a few of his more obscure inventions.
Credibility: As a college student who has done research on the topic, I feel as if I have some basic knowledge of the life and contributions of Thomas Edison.
Preview: Edison’s inventions of the talking doll, iron ore separator, and alkaline battery for electric cars were not immediate successes like the light bulb and movie camera.
The phonograph was one of his most well-known inventions, but when trying to come up with uses for it, he had some unsuccessful results.
I.   He created the first talking baby doll, but many problems with the design made it an undesirable toy for children.
A.   The construction and durability was a big issue for the doll.
1.   A miniature phonograph was incased in a tin box and embedded in the dolls chest.
a. This was far too delicate of a device for rough usage by small children.
2.   It also required the child to turn a crank at an even speed to hear the doll speak.
B.   Because sound recording was in its infancy, the doll did not perform as Edison hoped.
1. The cracking and hissing of early recordings made the dolls difficult to understand.