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It is difficult to know. Edison certainly made several attempts and continued to improve on his original design.
Thomas Edison's greatest challenge was the development of a practical incandescent, electric light. Contrary to popular belief, he didn't "invent" the lightbulb, but rather he improved upon a 50-year-old idea. In 1879, using lower current electricity, a small carbonized filament, and an improved vacuum inside the globe, he was able to produce a reliable, long-lasting source of light.
What else can I help you with?
What state and town did Thomas Edison invent the light bulb?
Thomas Edison Invent the light bulb in Florida
What paper did Thomas Edison invent?
Thomas Edison did not invent paper. He was known for his inventions such as the phonograph and the electric light bulb.
Why did Albert Einstein invent the light bulb?
Albert Einstein did not invent the light bulb. The light bulb was actually invented by Thomas Edison in 1879. Einstein was a physicist known for his theories of relativity and his work on the photoelectric effect, but he did not invent the light bulb.
Which of these did Thomas Edison invent?
Phonograph apex
Did thomas Edison invent a clock?
No, Thomas Edison did not invent the clock. He was known for inventing the phonograph, the incandescent light bulb, and the motion picture camera, among many other technological innovations.
Did Thomas Edison invent the umbrella?
No Thomas Edison didn't invent the umbrella, but he did invent the phonograph and the light-bulb. :D
What state and town did Thomas Edison invent the light bulb?
Thomas Edison Invent the light bulb in Florida
What kind of light bulb did Thomas Edison invent?
Thomas Edison invented the Incandescent electric light.
What paper did Thomas Edison invent?
Thomas Edison did not invent paper. He was known for his inventions such as the phonograph and the electric light bulb.
What communications did Thomas Edison invent?
Light bulb.
When and where did Thomas Jefferson invent the light-bulb?
Thomas Jefferson did not invent the light bulb. The light bulb was invented by Thomas Edison in 1879 in New Jersey.
Who invent light bulb?
Thomas Edison's great brain invented the devise that we use today which is the light bulb.
What encouraged Thomas a Edison to invent the light?
Edison did not invent the first electric light bulb, but instead invented the first commercially practical incandescent light.
Did Thomas Edison invent anything then the light bulb?
yes
What did thomas Edison invent besides the light bulb?
The phonograph
What other stuff did Thomas Edison invent?
the light bulb
When did Thomas Edison invent the electric light station?
yes
