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Gracie's Page(;

Page history last edited by Neil 13 years ago

Glogster account

Nickname: sqqbqh9
Password: same as your wiki
First login link: http://edu.glogster.com/go/sj0neh

 

Good Information On These Websites:

 

http://www.antique-collectable-clock.com/who-invented-the-clock.html 

Notes for "Clock Research"

In the 13th Century a clock was devised that used weights to drive a drum containing mercury. The mercury passed into each segment of the drum and slowly filtered through holes in the separating pieces, thereby controlling the rate at which the drum turned. This is of course a similar escapement to the one devised by Su Sung in 1092.

Nobody actually knows the reason why the day was split into 12 hours and each hour split into 60 minutes and then each minute into 60 seconds. The best guess is that it was the Babylonians who worked out that there were 12 full moons in a year which gave them a 360 day year. They also knew the relationship between the radius of a circle and its circumference, which split the circle into six segments. Dividing this by two gave them 12 segments, which also fitted well with their religious beliefs that the number 12 had some kind of special significance.

Clock Questions:

#1-Who invented the first clock?

**#2-What year was the clock invented?

**#3-Did people believe clocks were useful?

#4-Where were clocks invented?

#5-Why did the person who invented clocks invent them?

#6-Were clocks used for anything else besides telling time?

#7-why does the clock turn clockwise?

#8-why is it called clockwise?

#9-why is it called a clock?

Clock Question Answers:

#1-
Who Invented The Clock ?

The etymology of The Clock 
Origin of the word Clock
Horology

Historians do not know who or when mankind "invented" a time-keeping device or "clock". Probably thousands of years ago when someone stuck a stick in the ground and saw the shadow of the sun move across the ground, known as a 
Sundial.







In ancient Egypt 
Water Clocks were used te.

#2-

Not until somewhat recently (that is, in terms of human history) did people find a need for knowing the time of day. As best we know, 5000 to 6000 years ago great civilizations in the Middle East and North Africa began to make clocks to augment their calendars. With their attendant bureaucracies, formal religions, and other burgeoning societal activities, these cultures apparently found a need to organize their time more efficiently. The first mechanical alarm clock was invented by Levi Hutchins of Concord, New Hampshire, in 1787

#4-

"Early mechanical clocks
There is a record that in 1176 Sens Cathedral installed a ‘horologe’—the word still used in French for large clocks. (from Greek hora, hour, and legein, to tell). This word has led scholars to believe that these tower clocks did not employ hands or dials, but “told” the time with audible signals such as bells.

By 1280 mechanical clock-making began in England, Italy, and France. In 1283 a large clock was installed at Dunstable Priory; its location above the rood screensuggests that it was not a water clock. In 1292, Canterbury Cathedral installs a 'great horloge'. Over the next 30 years there are brief mentions of clocks at a number of ecclesiastical institutions in England, Italy, and France. In 1322 a new clock was installed in Norwich, an expensive replacement for an earlier clock installed in 1273. This had a large 2 metre astronomical dial with automata and bells. The costs of the installation included the full-time employment of two technicians for two years.

#9- The word 'clock' comes from the French word "cloche" meaning bell. The Latin for bell is glocio, the Saxon is clugga and the German is glocke.

Comments (9)

virginiam said

at 2:59 pm on Mar 1, 2011

WOW! you have a lot of good stuff!! i didnt know about any of this!

kristens said

at 3:00 pm on Mar 1, 2011

Wow Grace you wrote a lot! I did not know about all of that!

mayav said

at 3:15 pm on Mar 1, 2011

Interesting. Didn't know all of that.

jessicam said

at 5:22 pm on Mar 1, 2011

Your topic is very good. I didn't know all of the information.

charnip said

at 6:00 pm on Mar 2, 2011

amazing topic are you having a great time.

kristens said

at 1:26 pm on Mar 3, 2011

Grace you have an amazing topic I can't wait till you do more!!!!!!

nihitt said

at 7:21 pm on Mar 6, 2011

Nice!I really like the topic!

Neil said

at 11:19 pm on Mar 7, 2011

Dear G.,
The comments by your classmates is very encouraging. They are obviously very interested in what you are discovering. I suggest you create some essential questions to focus your investigation into areas in which you are interested.
Your Teacher

charnip said

at 5:02 pm on Mar 15, 2011

your doing great. keep working.

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