Time Leads to Power
“You may delay, but time will not.”
― Benjamin Franklin
Keeping Time
Sundial clocks or shadow clocks were the first clocks to tell time. They are still used today. In order to tell time one has to stand to see where the shadow of the sun is on. The area of where the shadow is will tell the time. However people could not tell time at night, when it rained or when there were clouds. The most important part from the sundial is people could now tell time.
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Water Clocks needed a steadied flow of water to keep track of the time. People would use a large bowl or container to hold the water and use a spout to drain the bottom, to tell the time. There would be lines in the bowl or container to tell the time. The pros of having this is when the sundial's don't work at night. One con is running out of water. Refilling the container or bowl would take some time.
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Candle clocks were used to tell time by the amount of wax would be burnt. There would be evenly spaced marking to tell the time. Each marking could represent time from 5 minutes to an hour depending on the length of the candle. The candles were made just for time keeping. Candle clocks were the first alarm clocks. People would insert a nail into the candle at the right time. The candle would be in a metal and when the wax melted to the head of the nail the nail would make a small clatter. The pros to having a candle clock is being able to keep track of time at night. One con for having a candle clock is that the candle will burn out.
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Hourglass was used for many different reason. Hourglasses use sand and a glass. The shape of an hourglass was built to have the sand fall down to one side of the glass to tell what the time was. Depending on the size of the hourglass, it could range from 2 min to an hour. One of the pros was being able to tell time when the sun was not out and being able to bring the hourglass around with you. One of the cons is if it breaks then thats not good….
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Mechanical clocks are the first clocks that lead to more modern clocks. Mechanical clocks use a mechanism called an escapement. Which is a balance wheel on a watch, an escapement ticks in a steady rhythm and when an hour comes it chimes. The benefits of having this is not relying on the other types of clocks for time, this timekeeping is more accurate. The cons is having to repair it when it didn't work right.
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Pocket Watch was the first hand held timekeeper to give people the time. To think of a pocket watch it is much like a mechanical watch but can't keep 24 hours of time on it. The pocket watch could only hold 30 minutes. Over time this became a problem for many people.
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Wrist Watch one man wanted to have a watch that would be on his wrist. This was done by a watchmaker, who designed the watch. Many people liked the idea and wanted to have the watch. During World War I soldiers used the wrist watch. The wrist watch was able to keep a 24 hour time period.
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Quartz Clock is modern clock that uses electricity. A quartz clock can keep track of seconds, minutes and hours. Over time scientists wanted to make keeping time more accurate. They did this by using crystal oscillator. Crystal Oscillator is a electronic oscillator that response by using electronic waves.
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Atomic clocks is the clock that is used to day. It is electric clock. The Atomic clock uses atomic physics meaning it uses electrons to give energy to the clock. It never stops working and only slows down to 1.41 seconds in 14.1 million years from when the clock was built.
Calendars
The first calendar was created by Babylonians who used the stars to set months and seasons for their people. The length of their calendar was 354 days. Later on the Egyptian's had their ideas and changed the calendars days to 365 days to one year. In BC the Julian and Mayan calendars were made. The Julian calendars months were named after the plants and gods from their faith. The Mayan calendar is also followed by their gods but their calendar ended in 2012. Lots of people freaked out because of the movie 2012 but its just like any other calendar, at the end of a year a new one is made.
"Don't be fooled by the calendar. There are only as many days in the year as you make use of."
-Charles Richards
Sources for Keeping Time:
"10 Ingenious Ancient Timekeeping Devices".Information about the first clocks. LISTVERSE. Web. Dec 11. 2014. Retrieved from http://listverse.com/2013/06/26/10-ingenious-ancient-time-keeping-devices/
Source for Calendars:
"History of the Calendar". Information about calendars. History World. Web. Dec 11. 2014. Retrieved from http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ac06
"10 Ingenious Ancient Timekeeping Devices".Information about the first clocks. LISTVERSE. Web. Dec 11. 2014. Retrieved from http://listverse.com/2013/06/26/10-ingenious-ancient-time-keeping-devices/
Source for Calendars:
"History of the Calendar". Information about calendars. History World. Web. Dec 11. 2014. Retrieved from http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ac06