Inventions and Inventors
By: Mary Archer Boyd
Thomas Edison was a great and maybe the most important inventor of his time. he invented the light bulb, phonograph, and many others. Edison made a big impact on Americans even today.
George Westinghouse was another great inventor who invented the who built AC ( air conditioning ) and air-brake system for the railroad.
Christopher Sholes invented the type writer, there were other attempts but he made the first one that was successful. The type writer had a big impact on the social level, it mostly helped woman.