Telephone - Invention, Technology, History
Par un écrivain mystérieux
Description
Telephone - Invention, Technology, History: The telephone instrument continued to evolve over time, as can be illustrated by the succession of American instruments described below. The concept of mounting both the transmitter and the receiver in the same handle appeared in 1878 in instruments designed for use by telephone operators in a New York City exchange. The earliest telephone instrument to see common use was introduced by Charles Williams, Jr., in 1882. Designed for wall mounting, this instrument consisted of a ringer, a hand-cranked magneto (for generating a ringing voltage in a distant instrument), a hand receiver, a switch hook, and a transmitter. Various versions
Telephone, an instrument designed for the simultaneous transmission and reception of the human voice. It has become the most widely used telecommunications device in the world, and billions of telephones are in use. This article describes the modern telephone’s components and traces its historical development.
Telephone, an instrument designed for the simultaneous transmission and reception of the human voice. It has become the most widely used telecommunications device in the world, and billions of telephones are in use. This article describes the modern telephone’s components and traces its historical development.
1870s – 1940s: Telephone, Imagining the Internet
The Complete History of Phones from the Last 500 Years
The Telecommunications History Group, Inc. - Timeline
Rise and fall of the landline: 143 years of telephones becoming
How Phones Work: The Basic Science Behind Telephones
Telephone design: A brief history. [PHOTOS]
:max_bytes(150000):strip_icc()/FirstTelephone-58a750b23df78c345bbd2870.jpg)
The Invention and Evolution of the Telephone
History of the telephone - Wikipedia
Science History, The 1861 Reis Telephone, invented by German
Who Invented the Telephone? - Inventors Digest
Telephone, History, Definition, Invention, Uses, & Facts
Telephone design: A brief history. [PHOTOS]
The Evolution of Telephone Technology— LinkedPhone
A Time Before Phones: The Inventions Leading Up to the Telephone
Phone evolution. Telephone history from invention to modern, old
depuis
par adulte (le prix varie selon la taille du groupe)
