History of the watch. Evolution from sunny to hydrogen

We will trace the historical path that has passed the device for measuring time, from the dawn of mankind until today: from banal sunny to the most modern - hydrogen. You will read the history of the occurrence of the clock, learn that the clock is living, water, sand, firing, tower, pockets, sea, pendulum, skeletons ... The reader awaits the stories about the watches and the Kremlin chimes, Prague eagles and Tsvinger watches, old Joe and Greenwich’s watches, Jaffa hourly tower and citroglogg ... There are many interesting facts about the mechanism counting the story on the pages of this book, you will learn that: the simplest devices for determining the time appeared more than 4000 years ago, the flowers are revealed with such accuracy that according to It is possible to determine the time of day, the expression “time flows” - it went from the water clock - klepsidra, the accuracy of hydrogen watches is the highest, it is 0.45 nanoseconds in 12 hours, and many more interesting ones