how many experiments did Edison perform before inventing the electric bulb?

Answer 1

about 1500-2000 experiments.

Answer 2

Edison didn't 'invent' the light bulb. A German did.
Edison bought the patented lightbulb.

He basically ran a think tank or an inventors sweat shop
were he paid lots of others to come up with the answers to the things he wanted.

I beleive it took a year but do not how many until he was satisfied.

In the end the filament we use to day was invented by someone else also.

Answer 3

Actually..... Edison didn't 'invent' the light bulb. It was a german physicist who demnonstrated the first working light bulb. But his was terribly expensive to build and not commercially feasible.

Edison tried many thousands of combinations of materials before finding one that was inexpensive and lasted a long enough time to be commercially successful.


Doug

Answer 4

It Was Somewhere close to 800 to 1000times and then he discovered that by putting a glass bulb around the electric current and sucking all the air out to create a vacumm inside the bulb.

Answer 5

Edison was a prolific inventor of his time and it is reported that he holds a record 1,093 American patents in his name. Most of these inventions were not completely original but improvements of earlier patents. Many of his patents were actually made by his employees - Edison patented their work and did not share the credit of the innovation.


1867
Edison moves to Boston, Massachusetts, to work as a telegrapher. He amuses himself by taking things apart and seeing how they work, even making a device to kill cockroaches with electricity. The next year he files his first patented invention, the electrical vote recorder, but no one wants to buy it. Edison tells himself that from now on he will only invent things people want to buy.


1877
In early December Edison wraps a piece of tin foil around a cylinder and recites "Mary Had a Little Lamb." The first phonograph plays his words back to him. Later, he calls the phonograph his favorite invention, "This is my baby and I expect it to grow up and be a big feller and support me in my old age." It does. Edison make many changes and sells phonographs for many decades. This is one of Edison's Top Three Inventions.

1878
In late summer, Edison and his team of "muckers" start work on an electric light. At the same time, they develop all the other inventions to make the light work--dynamos, wires, switches and fuses. This is called the electric light system, perhaps the greatest of Edison's Top Three Inventions.

1879
After hundreds of experiments, Edison and his team of muckers make a light bulb that lasts for more than thirteen hours. (Some books say this was on October 21-22, 1879, but new research shows that these dates are wrong.) Now they work on ways to bring their incandescent lights into many homes.

1887
Edison opens his new laboratory at West Orange, close to his new home. During his 44 years there, Edison invents the motion picture camera and improves the phonograph. His inventions become products that are manufactured in factories which surround the laboratory buildings. Along with Glenmont, the laboratory is now part of Edison National Historic Site and is run by the National Park Service.

1890s
Edison spends most of his time at his iron ore mine in Ogdensburg, New Jersey, where he tries to invent a method of separating the ore from rock. The mine is his biggest failure. He loses millions of dollars. But the success of his phonograph and motion pictures keeps him in business.

1894
The first public showing of motion pictures takes place on April 14 with the opening of a "peephole" Kinetoscope parlor at 1155 Broadway, New York City. People pay a nickel to look through a small hole at a very short movie. A few years later, people watch movies in theaters on big movie screens. Movies are considered the last of Edison's Top Three Inventions.

1900s
Edison spends most of the decade working on an improved storage battery for electric cars. In fact, most of his batteries are used on railroads and in mines. It becomes Edison's biggest money maker.

1927
The inventor begins his last major work, trying to find a new source of natural rubber. Edison works on this until his death in 1931.

Answer 6

10000

Answer 7

On the history channel I heard over 3,000

Answer 8

enough