Stonehenge, one of the sundial was the first known
We talk about their day. We calculate it by seconds, minutes, hours, days, months, years, decades, centuries and millennia. Before the invention of the stopwatch clock, people use many different things to time, such as: incense, candles, calendars. People also use the sun, the sand to divide the day into hours. stopwatch clock as we know it today was developed by the devotees in Europe in the 17th century. They need to know the exact time to meet at the church. The Chinese invented the water stopwatch clock in the 17th century, but the ancient Egyptians had them before long. In the 1700s, people had stopwatch clocks and watches, accurate to the minute.
Sundial, hourglass, incense and candles
The stopwatch clock is one of the oldest inventions of man, when the man asked to identify a process that occurs in a period of fast or faster. While the moon and the stars can be used to measure long periods of time, the short period of time is another matter. One of the first solutions that people known as the sundial, but only be able to measure small intervals during the day by using the shadow of the sun shone through the milestones.
Later, candles and the incense is used to measure time. Period to we burned approximately equal and are often used to estimate the time.
There is also the kind of hourglass. There, fine sand to flow through a small hole in a certain speed, thereby determining a period of time.
Water meter
Historian Vitruvius record that in ancient Egypt, people use these kinds of watches called clepsydra. Herodotus also mentions an instrument other time of the Egyptians activity by mercury. The materials on the water meter is also found in many parts of the Arabian Peninsula, China and South Korea.
The first mechanical stopwatch clocks
Big Ben stopwatch clock in London, England has long hour hand 1.63 m long while the minute hand 4.3 m
But not any watches left over from the Middle Ages, but the written record of the church is also a somewhat secret history of the stopwatch clock.
Belief in the Middle Ages must use the stopwatch clock to measure the time for centuries, daily prayer and work is strictly regulated. Therefore one can use tools such as water stopwatch clock, sundial and candles combined with other instruments to signal like tones by simple mechanical structure which uses heavy fruit. Therefore, the first type of stopwatch clock does not use needles but using audio signal.
So, in more modern language, the word "stopwatch clock" comes from the Latin cloca meaning "bell".
New mechanical structure for the stopwatch clock
In between the years 1280 and 1320, the church's documentation of the types of instruments to measure the rise time. This structure may represent a new stopwatch clock is designed in this period: the system consists of a heavy work associated with the gyroscope. The energy in the stopwatch clock is controlled by a structure called the "back".
The mechanical equipment is applied to the stopwatch timer clock for two main reasons: to mark, indicating the time and later marked the movement of the celestial bodies. First demand is for the convenience of management, and the need for science, astronomy, and the relationship between them with religion. The first stopwatch clock is usually located in the main tower, not necessarily metal but just capable of signaling the start. Other complicated watches appeared and needles for hours and even an automatic structure.
In 1283, a stopwatch clock was installed at Dunstable Priory, it is worth noting here that it is one for stopwatch clock mechanical stopwatch clock is not the first use of water power. In 1292, a similar stopwatch clock is said to have been installed in the church of Canterbury. In 1322, another one was installed in Norwich. Such works requires the efforts of two skilled workers in the next two years.
The parts of the body stopwatch clock
No comments:
Post a Comment