Traditional Culture Encyclopedia - Photography major - Both Siemens and Edison have made outstanding contributions to the progress of human history. Please describe them separately.
Both Siemens and Edison have made outstanding contributions to the progress of human history. Please describe them separately.
Siemens: Laying and improving submarine and underground cables and wires, building electrified railways, proposing open hearth steelmaking, innovating steelmaking technology and establishing Siemens Company.
Edison: The phonograph, movie camera and electric light he invented had a great influence on the world. He had more than 2,000 inventions and 1000 patents in his life.
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