The first and perfect clock which man has ever known is the sun. During the day when the sky is clear, the sun shines on objects on Earth and casts a shadow, which runs parallel to the proper circling the Earth around its axis. Back in the old days, people have assumed the making sundials. Thus, the wall rammed a stick and then followed his shadow. Although uncertain, it is believed that the Sumerians constructed the first sundials more than 5000 years ago.
Romans and Greeks knew many types of sundials, but the timing for short periods during the night, used the water and sand clocks called Clepsydra, in which they exploited evenly flowing water or sand through the constricted opening from one container to another. The Romans used these classes in meetings to measure the time specified for individual speakers. At the same time water clocks were made in which the lowering of the water level goes down and figurines that stick in the cylinder during the shows.
Candles and oil lamps did other ingenious methods of measuring time. Watches that have worked on this basis remained in use until the 1800s. , But have never been perfect. A big leap forward has been made in the construction of devices for measuring time when Galileo discovered the law of the pendulum. The 1657th applying Galileo’s discovery of the clocks, the Dutch scientist Christiaan Huygens built the first pendulum clock, which is fairly exhibited.
By the 16th century, table clocks were manufactured with highly complicated mechanisms. These watches were gradually improved and were becoming increasingly larger, so that
Eventually become real pieces of furniture with built pendulum. At about the same time they began to create and smaller clocks. They eventually become precious objects with beautiful decorations and engravings, and constructed from precious metals. People often wore watches worn around the neck like a necklace and served as a decoration.
The invention of a pocket watch is attributed to the German Peter Henlein 1510th year. For a long time the best known makers of desktop and pocket watches were Germans who were very clever in creating a strange and original shape . In the time between the clocks in the towers and the towers have become true masterpieces. Some were so complicated that they showed the events of astronomical significance, such as eclipses of the sun and moon.
London Style Mechanical Pocket Watch is a perfect example of a pocket watch that has both class and style.
The history of clocks went forward 1867th year when the Swiss George Roskopff brought to market, watches for mass production. Previously watches were very expensive and were owned by only the wealthiest people, and mass production meant that they have become relatively cheap. Since then, the manufacturers of the watches have competed in the production of simple and sophisticated watches and such structures that could be used for different purposes. The first atomic clock was launched 1948. Year, while today there are numerous electric and battery clocks that include the digital.
In the making of watches, manufacturers use quality materials like gold, platinum, precious stones and rubies as well as new materials such as ceramics and silicon. It is interesting that in the 18th century began to use the jewels in making watches in order to increase accuracy. Today they are used synthetic rubies, usually about 17 to 21, the rotating element bearings reduce friction and wear.