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Commodity: Telecommunications

Telecommunications

Years: 1828 - 2215

Telecommunications, which becomes a commodity with the invention of the telegraph, is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.

Early means of communicating over a distance include visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs.

Other examples of pre-modern long-distance communication include audio messages such as coded drumbeats, lung-blown horns, and loud whistles.

Twentieth- and twenty-first-century technologies for long-distance communication usually involve electrical and electromagnetic technologies, such as telegraph, telephone, and teleprinter, networks, radio, microwave transmission, fiber optics, and communications satellites.

Notable pioneering inventors and developers in the field of electrical and electronic telecommunications include Charles Wheatstone and Samuel Morse (inventors of the telegraph),and Alexander Graham Bell (inventor of the telephone).

A revolution in wireless communication begins in the first decade of the twentieth century with the pioneering developments in radio communications by Guglielmo Marconi, who wins the Nobel Prize in Physics in 1909.

Later pioneers include Edwin Armstrong and Lee de Forest (inventors of radio), and Vladimir K. Zworykin, John Logie Baird and Philo Farnsworth (some of the inventors of television).

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"Those who cannot remember the past are condemned to repeat it."

― George Santayana, The Life of Reason (1905)