08.09.10
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 . (more…)
08.09.10
Perhaps the most significant step forward in the history of time measurement was the introduction of mechanical watches with wheels that the XII century began installed on the towers of churches . As the drive mechanism used in these goods , reinforced by a metal chain . When lowering the load chain and reel rotating cylinder in conjunction with the wheel and arrow. In the XIV century mechanical clock tower is used everywhere , and in 1657 the Dutchman Christian Huygens built the first pendulum clock. (more…)
08.09.10
Date of first appearance of an hourglass is unknown . But they, like the lamp- oil , appeared no earlier than clear glass . It is believed that in Western Europe about the hourglass found only in the late Middle Ages , one of the oldest mention of them is a message from 1339 , discovered in Paris. It contains instructions for the preparation of fine sand from the sifted powdered black marble , boiled in water and dried in the sun . (more…)
08.09.10
Sundials are simple and reliable indicator of the time, but suffered some serious shortcomings : their work depended on the weather and was restricted to the time between sunrise and sunset . There is no doubt that because of this , scientists began to explore other ways to measure time, not related to the observation of celestial bodies. It is also clear that the new instruments for measuring time should have been fundamentally different from the sundial. (more…)
08.09.10
If you ask the question, what is the regulator, the watchmaker, apparently, think of the thermometer on the bridge balance, the collector of hours – about the old floor clock, and a man with an idea of Swiss watches, slapping his forehead, recalling the unusual watches with single-clockwise. We will try to clarify this issue. (more…)
08.09.10
Age compact and portable mechanical timepieces opened the invention in the same Huygens in 1675 rotary balancer as well as the use of weights instead of springs. Connecting a torsion pendulum, the balance spring and escapement shutter has opened the way not only to marine navigation, but also the creation of massive small hours, still significantly increased the accuracy of astronomical observations, and even revealed the irregularity of the Earth’s rotation. (more…)
08.08.10

What you need
- Two thick sheets of cardboard A4 (standard sheet of typing paper);
- Compasses;
- Scissors
- Transportation;
- Sharpened pencils;
- Ruler with millimeter divisions;
- Elbow (for construction of right angles). (more…)
06.29.09
1470 invented the clock, running from the springs of energy and equipment for the factory springs in watches.
1480 – 1511 Start of production of portable hours. The first pocket watch made from the master Nyurenberga (Germany), Peter Henleyn (Peter Henlein). Exist only one arrow, and showed them the approximate time. The body of the clock was made of gilded brass, and had the form of eggs, it is obvious why they were called – “Nyurenbergskoe egg.” Time masters have begun to watch the image of the first. (more…)
06.29.09
The era of compact and portable mechanical chronometers opened the invention are the same Huygens in 1675 rotary actuator, as well as the use of weights instead of springs. Compound torsion pendulum, a spiral spring and anchor running paved the way not only to marine navigation, but also the creation of massive small hours, but still significantly increased the accuracy of astronomical observations, and even found the uneven rotation of the Earth. (more…)
06.29.09
If you ask the question, what is the regulator, the master of time, probably, will think about the thermometer on the bridge balance, the collector of hours – on the old floor clock, a man with a picture of Swiss watches, hlopnuv ourselves on the forehead, think about the unusual wristwatch with single-clockwise. Try to clarify this issue. (more…)