In many cities of the country, you will find a clock tower on the main square. The clock on this clock tower has been running for decades. But have you ever tried to know whether this clock runs on battery or on a key? Let us tell you how these big clocks run.
How do these watches work?
Whenever we see a clock tower, this question definitely comes to our mind that how do such huge clocks run on their own. Do they have any battery or do they run on electricity? Let us tell you, if you think so then you are wrong. Actually, the clocks installed on the walls of the clock tower work on the principle of pendulum based gravity. However, to run these clocks, the key has to be rewound from time to time.
How does the alarm sound in these?
Some clocks in the clock tower also ring an alarm. Let us tell you how this happens. Actually, to operate these clocks, they are wound twice a week. Alarm clocks are wound with three keys. On winding the first key, the clock tells the time and on winding the second key, the alarm rings after 15 minutes. On winding the third key, the alarm rings every hour. In the olden days, when every house did not have a clock, people in cities and towns used to know what time it was from the alarm of these clocks.
The tallest clock tower in the country
Talking about the country’s tallest clock tower, it is in Dholpur, Rajasthan. Here it is called Nihal Tower. The clock installed in this clock tower weighs not 100 or 200 kg but 600 kg. This clock tower made of red stones is visible from a distance. The construction of this clock tower was started by Maharaja Nihal Singh, but its work was completed during the time of Maharaja Rajaram Singh.
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