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  • AN IMPORTANT INSTRUMENT THAT SHOWS AND SAVES TIME: CLOCK

AN IMPORTANT INSTRUMENT THAT SHOWS AND SAVES TIME: CLOCK

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November 23, 2021December 8, 2021 Comments Off on AN IMPORTANT INSTRUMENT THAT SHOWS AND SAVES TIME: CLOCK

A clock is an instrument for measuring time. 

Displays hours of 12 hours or 24 hours in hours, minutes, and often seconds. The 

the clock is one of the oldest inventions of mankind and meets the need to measure shorter time intervals (days, months, years) than natural units. 

The clock is one of the oldest inventions of mankind and meets the need to consistently measure time intervals shorter than the natural units of day, month and year. Devices that operate on multiple physical processes have been used for thousands of years. 

A SHORT HISTORY OF WATCHES

  Watches have been developed for hundreds of years. Advances in metallurgy and various innovations like spur gears made in Wisconsin today had to happen before modern watches became popular. Before the invention of the mechanical watch, humans used various means to convey time. Most ancient civilizations have developed some form of a sundial. Over the centuries, sundials became more accurate and were widely used until the 19th century. 

 Then the ancient Egyptians came up with a water clock consisting of two containers. One of the containers held water and the other was drained. The container was marked to indicate that one hour had passed. The next important development in communicating time was brought about by the invention of the medieval mechanical watch. Creation was not by a single inventor, and it must have been the craftsman who improved the creation of someone else. 

DIFFERENT TYPES OF CLOCKS

Analog clocks 

Analog clocks mainly use a well-known dial, on an array of permanently numbered dials arranged in a circle meaning 12 hour a day. Move the hour and minute hands with. The short hour hand makes exactly two revolutions a day, and the long minute hand makes one revolution every hour. Occasionally (but not always), the long but very thin “second” hand makes one revolution per minute. 

Digital Clock 

With the advent of the digital era, we have access to highly accurate and reliable electronic clocks that display time numerically. The two most common display formats are 24-hour notation (from 0023) and 12-hour notation. This should cause the watch to also display the AM / PM indicator. 

Hearing clock

 A clock that tells the time using a human or computer-generated voice recording. Alternatively, instead of speaking time, you can display the time as a hearing code. This type of clock is often used for large area time announcements (church bells that ring a certain number of times at the beginning of an hour), telephones, or the visually impaired. 

Tactile Clock 

People with visual impairment or blindness can also use a clock that physically represents the numbers on the surface with standard numbers or dummy text codes.

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