Thomas Edison's ultimate experiment was the development of a practical light bulb. Contrary to popular belief, he did not "invent" the light bulb; 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. Without the light bulb invention, we might not be where we are today. I mean look around you, how many electronics do you see that does not have some type of light bulb in them. We use them in everyday life, and without them I don't know what we would do.
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