ricity was the first electric clock, invented by Carl August. In 1839, Carl August Steinheil built a mechanical clock that had a rocking contact under its pendulum. This clock was placed almost two kilometres away from a secondary clock, and it sent electric pulses to the secondary clock. The secondary clock sported a permanent magnet and a solenoid. The purpose of the solenoid is to move the magnet fixed to an anchor to move the hands of the secondary clock. As the pendulum of the first clock swings, it tips over a rocking bar, allowing the pins attached to it to make contact with mercury held in glass tubes under the bar. This then reverses the direction of the electrical current and sends an electric pulse to the secondary clock. This is how clocks that were at different areas could keep the same time, and thus, Steinheil suggested the use of electromagnets and large coils of wire to make the invention more widespread. The invention was the basis of today's modern clocks, and it now, and forever will, help us tell the time. Today's clocks run on pure electricity, and we have utilized LCD screens to create digital numbers that tell the time, without the use of a pendulum.
             Another groundbreaking nineteenth century development was the telephone, which was invented by Alexander Graham Bell in 1876. When Bell began to experiment with electrical signals, the telegraph had been used as a way of communicating for about thirty years. In 1876, after experimenting for a few years with a technique that would transmit speech electrically, he and an electrician, Thomas Watson, tested the first telephone, in which Bell was able to talk to Thomas through electric pulses in wires. This invention made the multiple-telegraph obsolete. The telephone works by transmitting electrical impulses through wires. A person speaks into the telephone, and once the sound hits the transmitter (called a diaphragm), the diaphragm vibrates...