That doesn't matter. What matters is that he didn't give up and he was able to create the light bulb. :P
Thomas Edison took around a year to create a practical and commercially viable incandescent light bulb. He conducted numerous experiments and trials before he successfully developed a long-lasting and efficient light bulb that could be mass-produced.
Thomas Edison made around 1,000 unsuccessful attempts before successfully creating the light bulb.
Thomas Edison's slogan for his light bulb was "Let there be light."
Thomas Edison crowns 14 months of testing with an incandescent electric light bulb that lasts 13½ hours
Thomas Edison Invent the light bulb in Florida
Thomas Edison took around a year to create a practical and commercially viable incandescent light bulb. He conducted numerous experiments and trials before he successfully developed a long-lasting and efficient light bulb that could be mass-produced.
The light bulb was created in 1882 by Thomas Edison.
the light bulb by Thomas Edison
Peter Cooper Hewitt patented the first prototype of the fluorescent light bulb in 1901. It was a mercury vapor lamp.
Thomas Edison made around 1,000 unsuccessful attempts before successfully creating the light bulb.
Thomas Edison's slogan for his light bulb was "Let there be light."
Thomas Edison crowns 14 months of testing with an incandescent electric light bulb that lasts 13½ hours
Thomas Edison invented the Incandescent electric light.
Thomas Edison Invent the light bulb in Florida
Thomas Edison is credited with inventing the first commercially viable incandescent light bulb in 1879. However, others had developed earlier versions of the light bulb before him.
Thomas Edison invented the light bulb in 1879.
Thomas Edison's great brain invented the devise that we use today which is the light bulb.