I think that the greatest technological invention is the light bulb, because it was the first object used by electricity. Thomas Edison was a very smart person to be able to do something like that. People I guess really don't take it seriously anymore, because there is a large supply of light bulbs now, but he is one of the smartest scientist of his time. I hope someday people will realize how important it was for him to be able to do that. He started the use of electricity, and back then that was the coolest thing back then. If you had electricity you were probably rich or you were Thomas Edison. There weren't very many people that were able to have electricity because of where they lived. Most people then just had a candle. Candles were the light bulb back then. I am glad we still have candles, because if we lose electricity in the winter or summer time because of a storm. We need light to see where we are going in are house at night or we could fall and hurt ourselves.
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