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A mark that travels
Lumen · High school
Morse at the packet-ship table: if electricity can be made visible anywhere on a wire, a sentence can travel. The mark is the invention.
Student age
10years · 5th grade
Lumen · High school
Morse at the packet-ship table: if electricity can be made visible anywhere on a wire, a sentence can travel. The mark is the invention.
Student age
10years · 5th grade