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Besides the electric light bulb, what else did Thomas Edison invent?
 
Posts: 91 | Location: Have to drive north to get into the deep south | Registered: 08-04-02Reply With QuoteEdit or Delete MessageReport This Post
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According to www.thomasedison.com, Thomas Edison earned 1368 separate and distinct patents in his lifetime. The link above provides a straight forward timeline of Edison's major achievements and some biographical notes.

His favorite invention is said to be the phonograph.

Another page you might find informative is www.tomedison.org.

Enjoy!
 
Posts: 185 | Location: United States | Registered: 06-03-02Reply With QuoteEdit or Delete MessageReport This Post
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check out the Ford-Edison Winter estate info below......it's an interesting place to visit too - went last year while in FL.

I wonder what more he would have invented had he had the time.....one of Edison's quotes:

"I would like to live about three hundred years. I think I have ideas enough to keep me busy that long."

www.edison-ford-estate.com
 
Posts: 4519 | Location: ~somewhere else~ | Registered: 06-03-02Reply With QuoteEdit or Delete MessageReport This Post
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Just to put the record straight, Sir Joseph Swan, an English physicist and chemist, developed the first primitive light bulb in 1860. Edison used the same design twenty years later.
 
Posts: 288 | Location: Southport.U.K. | Registered: 06-03-02Reply With QuoteEdit or Delete MessageReport This Post
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Actually the first electric light bulb was the invention of Sir Humphry Davy in 1800. Swan invented his primitive and very short-lived bulb in 1878. Edison developed the first succesful and long lasting incandescent light bulb in 1879.
For the complete story CLICK HERE
 
Posts: 6707 | Location: Baltimore, MD, U.S.A | Registered: 06-03-02Reply With QuoteEdit or Delete MessageReport This Post
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The question asked about the first light BULB, Frank. As it is says in the site you recommend, it was an arc light Sir Humphrey Davy produced, not a light bulb. According to the E.B., both Swan and Edison improved on Swan's original light bulb at about the same time.
 
Posts: 288 | Location: Southport.U.K. | Registered: 06-03-02Reply With QuoteEdit or Delete MessageReport This Post
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Fourbrick, I don't think the light bulb actually could be called an invention. It was more of a development over a period of time. I don't know what Swan did but I know that Edison experimented with many different substances and arrangements before arriving at a satisfactory light bulb. As far as Humphry Davy is concerned it isn't too clear what they are talking about because an arc light isn't an incandescent light. At any rate I'm sure Swan gets more credit in the UK than he does here, and the reverse in Edison's case.
 
Posts: 6707 | Location: Baltimore, MD, U.S.A | Registered: 06-03-02Reply With QuoteEdit or Delete MessageReport This Post
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As you will see from my previous musings, Frank, I never called it an invention but a development.
I agree with your comment about the site you cite as not being sure of what an arc light was, but, Sir Humphrey Davy produced an incandescent light by connecting a carbon rod to a battery, but NOT in a glass bulb. It was Swan's idea to put the filament within a glass bulb to increase the life of the filament. As it says in the E.B. "in 1860, Swan developed a primitive electric light, one that utilized a filament of carbonized paper in an evacuated glass bulb. Lack of a good vacuum and an adequate electric source, however, resulted in a short lifetime for the bulb and inefficient light. His design was substantially the one used by Thomas A. Edison nearly 20 years later. In 1880, after the improvement of vacuum techniques, both Swan and Edison produced a practical light bulb"
Maybe in the U.S. the great man, Edison, is credited with the first light bulb, but methinks he does not deserve this particular honour. Primitive and inefficient Swan's bulb may have been, but it was long before Edison's improvement of his original design. Honour where honour is due.
 
Posts: 288 | Location: Southport.U.K. | Registered: 06-03-02Reply With QuoteEdit or Delete MessageReport This Post
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