Online timer clock history

Most of the watches from the 14th century to the present has the following main parts:

    energy, at first as a pendulum (energy is never depleted pendulum, its energy is very small), then ties
    last, a structure is designed so that the energy released slowly and not released all at the same time, the structure of the original in a single pendulum (pendulum timer timer clock), then the pendulum rotation located at the center of a piece of spring and light (in the timer timer clock fruits tangerines and watches), and quartz crystal, and the more sophisticated structure ...
    gear systems, motion control and communication tasks from the source to the display units
    display systems, including metal, bells, ...

The improvements

The watchmaker has improved his invention in many different forms. Designed the timer timer clock little more and eventually become a major challenge, because they also have to ensure the accuracy and durability of the watch. Watches can be a work of art by a talented artist, but also can be mass-produced for use in the home.

First, the fastener system was developed in the 15th century, and it has become a new challenge for the watchmaker.

Kim min timer timer clock first appeared in 1475, is mentioned in Almanus Manuscript of the convent Paul.

During the 15th and 16th centuries, the art of timer timer clock development in towns such as Nuremberg, Augsburg, Blois. Some watches have only one needle and the surface of the timer timer clock is divided into four intervals to the reader easily follow the stopwatch timer clock. A complete recovery system designed by Jobst Burgi in 1585. The accuracy of the timer timer clock he helped Johannes Kepler and Tycho Brahe astronomical observations with higher accuracy.

Second hand appeared around the year 1560 in the collection of Fremersdorf. But it works not very accurate, and the second hand only helps us realize that the timer timer clock still works.

In 1653, Galileo Galilei invented the pendulum led to the introduction of the pendulum timer timer clock by Christiaan Huygens built. He was determined if the pendulum has a length of 99.38 cm, a cycle of it will be exactly 1 second. In 1670, William Clement invented in the form of an anchor system to help improve accuracy. Since then, the minute hand and second hand appears in most watches.

In 1761, a watchmaker named John Harrison has achieved a major award has successfully made a wrong timer timer clock runs only 5 seconds in 10 days.

William Clement in 1670 to design a pendulum timer timer clock in a long box, since then it has become a decorative item in a lot of family time.

On November 17, 1797, Eli Terry timer timer clock copyrighted on first. He was one of those who set the timer clock industry in the United States.

Alenander Bain, a Scottish mechanic, who invented the electric timer timer clock in 1840, using an electric motor and a magnet system. In 1841, he was granted a patent on the electromagnetic pendulum.

Today, the timer timer clock time is measured in many different ways, from the quartz crystal to the half-life of a radioactive substance. Even mechanical timer timer clocks before, we only need to use batteries not need to wire up the column as before.
These kinds of watches

timer timer clocks can be classified by the way it displays the time as well as the method it uses to count the time.
How to display time
Mechanical watches
A linear timer timer clock at Piccadilly Circus in London. A bar moving in the sunlight at the top for the exact hour.