At the beginning of XIX century , which coincided with the rapid development of technological progress , the problem of storage time facing postal services, attempting to ensure the movement of postal vehicles on schedule. As a result , they have got Ammunition hours. And with the advent of railways hours received at its disposal and conductors . Read the rest of this entry »

At the beginning of XIX century, coincided with the rapid development of technological progress, the problem of storage time faced postal services, attempting to ensure the movement of postal crews on schedule. As a result, they got vozimymi clock. And with the advent of railways hours received at their disposal, and conductors. The more developed the transatlantic communication, the urgent problem of ensuring the unity of timing on different sides of the ocean. In this situation vozimye clock is not a century. And then came to the aid of electricity, in those days called galvanism. Electric hours solved the problem of synchronization over long distances – at first on the mainland, and then between them. In 1851 cable, which formed at the bottom of English Channel, in the 1860-meters – the Mediterranean Sea, and in the 1865-meters – the Atlantic Ocean. And since 1899 began the era of signals of exact time on the radio. Read the rest of this entry »