Substiture Technology

Optical telegraph disappeared as quickly as he appeared. This happened with the advent of the electric telegraph, 50 years later. This technology in France lasted only until the year 1853, while in Sweden until the year 1880. Undisturbed electric telegraph fog, wind, rain, or low clouds, and can also be used at night. Moreover, the electric telegraph is cheaper than the construction of the optical telegraph. Another advantage is more difficult to capture a message. If using optical telegraph anyone who understands the optical telegraph code can read the message of others. Electric telegraph also makes communication between the continents became possible, which can not be done optical telegraph (unless you play the way through Asia).

Nevertheless telephone, railroad lines, radio or television no one could make the telegraph obsolete. This technology is only dead when the arrival of fax machines and computer networks in the mid-20th century. On ships and railroads, the telegraph replaced with electronic technology, but in shipping technology is still used telegraphy during emergency situations (by using lights and flags).

Comparison with Modern Technology

Electric telegraph is a technology before electronic mail (email) and internet. Since the 30s, sending images can be performed. A variation by using the keyboard also developed, so that technology can be used by people who do not know morse code. Optical and electrical telegraph is basically the same with the Internet and email. Communications equipment uses the language code and the station to send information over long distances. Optical telegraph using visual signals, telegraph and electrical lines to the point, the Internet with the numbers 1 and 0. Flames and smoke trail is also a telegraph systems when combined with a telescope, can be as efficient optical telegraph. Of course, email is more efficient than the optical telegraph. But this does not alter the fact that the telegraph which had low technology could also give the same results without the wires or manggunakan energy, while the Internet has a mass of wires and absorb our energy supplies quickly.