The Invention of the Communication Engine 'Telephone'

This case study is a historic analysis of the developments that resulted in the electric telephone. It is a story about human communication. Long distance communication that had already developed with the electrical telegraph system created by Samuel Morse in America and Cooke & Wheatstone in Britain. But now electricity became—next to its...

The Invention of the Communication Engine 'Telegraph'

This case study is a historic analysis of the developments that resulted in the electric telegraph. It describes a fascinating development in the early nineteenth century. It is a story about communication. Long distance communication, that had already developed with the optical semaphore system created by Claude Chappe in revolutionary France....