Thomas Edison could hear very little by adulthood, yet he invented the phonograph, a machine that could record and play back sound. The American inventor and entrepreneur built a research laboratory at Menlo Park, New Jersey, where he and his team developed a practical incandescent light bulb. He held more than 1,000 US patents, ranging from improvements to the telegraph to motion picture technology. A tireless experimenter, he often worked long hours alongside the machinists and researchers whose skills made his projects possible.
1847 to 1931 · inventor and entrepreneur · American · 0 quotes on Great Quotes Online
