A watch is a very useful mechanism. Probably, watches can be called one of the mechanisms that simplify life. Who would have thought that the first watches were invented 3.5 thousand years ago.
The first watches were invented in Babylon. It was a wonderful, fairly simple mechanism: a round stone with numbers carved on it and a rod inserted in the middle, or a thin arrow attached from the center to the top of the watch. How did such a watch work? When the sun was down, the shadow of the arrow fell on the dial and showed the current time of the day. But this watch had a minus: they had only one hand and they worked only in sunny weather.
In China and Europe, there was a slightly different “measurement” of time: the Chinese did this on a marked candle. They put marks on the candle “in time” and lit it. The wax dripped - time was running out.
The Greeks used the water clock - “clepsydra” (the first were in Egypt and Babylon). Time was measured thanks to a stone vessel with markings filled with liquid. Water flowed out through a small hole in 12 hours, and according to markings, to reduce it, the Greeks monitored time. Later, a more modern model was created.
Water clocks were considered more public, while a fire clock (from candles) was used at home.
In Europe, around the eighth century, the first hourglass was created by the French monk Liutprandan from Chartres Cathedral. Only a good glassblower could make such a watch. The glass had to be gently blown out, filled in with a certain amount of sand, and the hole between the two balls made a value that would fit the right amount of time (minute, hour, day).
Only a wall clock could measure their minutes. The first such watch was created in 1288, the clock on the tower, Westminster chimes. Christian Huygens (Holland) introduced a pendulum clock in 1657, and in 1670 a clock with a second hand appeared. In 1675, the Huygents created a table clock. They could be used everywhere.
In 1840, the first electric clock appeared. Their creator is Alexander Bane. But they were not the most accurate. The most accurate watches are quartz. They were created by William Schott in 1918. Their inaccuracy fluctuated only 1 second per year.
A quartz watch was replaced by an atomic one in 1948, after which scientists concluded that the Earth makes unstable baptisms