What Is The Significance Of The Telegraph? (2)
Earlier than the development of the electric telegraph within the nineteenth century revolutionized how info was transmitted across lengthy distances, ancient civilizations comparable to these in China, Egypt and Greece used drumbeats or smoke indicators to change info between far-flung factors. However, such methods have been limited by the climate and the need for an uninterrupted line of sight between receptor points. These limitations additionally lessened the effectiveness of the semaphore, a modern precursor to the electric telegraph. Developed in the early 1790s, the semaphore consisted of a series of hilltop stations that every had giant movable arms to signal letters and numbers and two telescopes with which to see the other stations. Like ancient smoke indicators, the semaphore was vulnerable to weather and other elements that hindered visibility. A unique technique of transmitting data was needed to make regular and dependable lengthy-distance communication workable.
The telegraph operator can be … Read the rest