The History of Clocks and the Impact of the Discovery of Electricity on Them.
History of Clocks and the Impact of Electricity on them.
Introduction:
In this poster we are going to show you the history and the development of the clock through time and how it has impacted society. We will also show how electricity has affected the development and effectiveness of clocks.
Sun clock:
One of the first clocks on record is the sun clock. Sun clocks basically work on the principle that the position of a stationary object’s shadow will be in the same place at a certain time of day. The ancient people could put a scale on the shadow of an object like the obelisk in such a way that at dawn it is at one end and at dusk it is at the other. So that the people can have an estimate of how much daylight there is left. Also they could set a point to show when it is the middle of the day because at the middle of the day the sun will be highest in the sky so the shadow will be at its shortest. When the shadow is at its shortest they can put a mark at where it was on the scale. In some places they even made sun clocks that account for the different seasons because in different seasons the sun comes up and goes down at different times of day.
The sun clock was very useful to the ancient people because it helped the people of the ancient world to plan better for the rest of the day, which made the economy more effective.
There are some problems with sun clocks. For example they only work if it is daytime and the sun is not obstructed by anything, like a cloud. If one did not account for the change of season then the clock would only be accurate in the season that it was made. The main problem was that it was not very accurate. It was just about enough accurate to estimate time to within plus or minus 1 hour during daytime.
Water clock:
Another one of the early types of clocks is the water clock. It is defined by any time keeping device that has a regulated flow of water in or out of a container. The change in depth of the water in the
Introduction:
In this poster we are going to show you the history and the development of the clock through time and how it has impacted society. We will also show how electricity has affected the development and effectiveness of clocks.
Sun clock:
One of the first clocks on record is the sun clock. Sun clocks basically work on the principle that the position of a stationary object’s shadow will be in the same place at a certain time of day. The ancient people could put a scale on the shadow of an object like the obelisk in such a way that at dawn it is at one end and at dusk it is at the other. So that the people can have an estimate of how much daylight there is left. Also they could set a point to show when it is the middle of the day because at the middle of the day the sun will be highest in the sky so the shadow will be at its shortest. When the shadow is at its shortest they can put a mark at where it was on the scale. In some places they even made sun clocks that account for the different seasons because in different seasons the sun comes up and goes down at different times of day.
The sun clock was very useful to the ancient people because it helped the people of the ancient world to plan better for the rest of the day, which made the economy more effective.
There are some problems with sun clocks. For example they only work if it is daytime and the sun is not obstructed by anything, like a cloud. If one did not account for the change of season then the clock would only be accurate in the season that it was made. The main problem was that it was not very accurate. It was just about enough accurate to estimate time to within plus or minus 1 hour during daytime.
Water clock:
Another one of the early types of clocks is the water clock. It is defined by any time keeping device that has a regulated flow of water in or out of a container. The change in depth of the water in the
Bibliography: • Tim, H. (), Nigel, M. (), & Elizabeth, Q. () (2009, 08 04). The secret life of machines-the quartz watch part-1. [0]. Retrieved from http://www.youtube.com/watch?v=vCEQ5J97pO4 • Tim, H • Cycloid. In (2012). Wikipedia Retrieved from http://en.wikipedia.org/wiki/Cycloid • www.wikipedia.org • Lienhard, J. (1986). uh.edu/engines/epi120.htm. Retrieved from http://www.uh.edu/engines/epi120.htm • Su song • Wikipedia. In (2011). Retrieved from http://en.wikipedia.org/wiki/Christiaan_Huygens • WikiPedia • Anonymous. (2011, November 20). Irrigation. Retrieved from http://en.wikipedia.org/wiki/Irrigation By Nico Stirling