1 / 11

Ancient Clocks

Ancient Clocks. Their History and Making. 9/24/10. By: Madison Maynard. Think Tank Factory 3 rd Period. Introduction.

deacon
Download Presentation

Ancient Clocks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ancient Clocks Their History and Making 9/24/10 By: Madison Maynard Think Tank Factory 3rd Period

  2. Introduction • The History and making of ancient clocks is unique and unrepeatable. The ancient Romans, Greeks, Babylonians, Egyptians, and Chinese were the first to identify time and invent clocks. The three main clocks were the water clock, the sundial, and the hourglass. They were all called different things, but they did relate to our clocks today, and helped in making them.

  3. Sundial Basic Information • The sundial is a circle with a stick in the middle, and numbers around the side. • When the stick’s shadow falls at a number, it is that time. • They only work during daylight. • The Egyptian sundial dates back to around 1500 B.C.

  4. Sundial Details The sundial’s history and making is quite interesting. No one knows where the sundial originated. It dates back to 1500 B.C. It was usually made on stone or wood. They were usually in a flat bar or a circle. Today it is most commonly made in a circle. The time of day was figured out by the shadow cast by a stick that was put at a certain angle in the middle of it. The major problem found by everyone is that it cannot be used at night.

  5. Water Clocks Basic Information The water clock was made to work at night. It is not very complicated , but was improved many times over the years. It was made with two pots – One on top, and one on bottom. The top one had a hole in the side and was then filled with water. The water would flow out into the bottom one, which was marked with lines. The main disadvantage was that you had to keep refilling it.

  6. Water Clocks Details The history and making the water clock is intriguing and was different than that of the other ancient clocks. The water clock was invented in Ancient Egypt by Prince Amenemhet. He invented it for the king of Egypt , Amenophis the 2nd. The original water clock was very simple. In later years it was improved. The main improvement was that they added a wheel, so that when an hour had past the wheel would turn. It was a very important time piece because it was used within three important countries (Greece, Egypt, and Rome) in the 3rd century.

  7. Hourglass Basic Information • The Inventor of the hourglass a.k.a. sand clock is unknown • It was and still is one of the most common timepieces in history • The hourglass can be made to suit almost any design or fashion • It was the most accurate of any of the others • It was first used in the 8th century and its usage declined in the 16th and 17th century

  8. Hourglass Details The hourglass’ history and making is very unique. It was invented because of the faults of the water clock. Sand was something that wasn’t affected by weather, water vapor, and other variables--especially sealed in a glass container. It was first made by two bowls tied together with cord, then sealed with wax. Later on the glass container was molded as one piece. Hourglasses are still used for fashion, design, games, and just as timers or souvenirs. They can be made with all sorts of things for frames including bamboo, wood, and various metals.

  9. Relation The clocks of today and the ancient clocks are related in many ways: • They both tell time • They were all made for the purpose of being able to communicate at a certain point in the day with other people • They are used all around the world • There are different types • They are both very important in daily life and history

  10. * * Conclusion There were three simple clocks from the ancient times, but they all helped contribute to the progression of our modern clocks today. * * *

  11. References GRAPHICS http://ccphysics.us/henriques/a105l/Sundial.htm picture on slides 3-4 http://www.mcwdn.org/Time/TimeMain.html Picture on slide 5 http://www.reachoutmichigan.org/funexperiments/agesubject/lessons/newton/clocks10.html picture on slide 1 http://www.waynecountyschools.org/334/site/default.asp picture on slide 2 http://www.the-romans.co.uk/calendar.htm picture on slide 5 INFORMATION http://www.tkyoung.com/history.html Hourglass http://www.madehow.com/Volume-5/Hourglass.html Hourglass http://www.the-sundial-store.com/sundial-text/home-page-sundial-development.htm Sundial http://www.kwintessential.co.uk/articles/article/Egypt/Ancient-Egyptian-Water-Clock-/3235 Water Clock http://library.thinkquest.org/J002046F/technology.htm Water Clocks; Sundials http://library.thinkquest.org/C008179/historical/basichistory.html Summary of time

More Related