Thomas Edison had a restless spirit. In 1882, at the age of 35, he shut down his Menlo Park laboratory. For five years, he worked out of different places.
In 1887, he moved to West Orange, New Jersey. He lived there for the rest of his life. He built a huge lab there and hired the best minds he could find. Edison would dive into a project. Sometimes he’d work on it for ten years. He had to be sure it wouldn’t work before he’d give up. Because he was never satisfied, he might change something when it was being produced. His workers wouldn’t be happy about that.