SlideShare uma empresa Scribd logo
1 de 11
Baixar para ler offline
The Evolution of The Clock,[object Object],PowerPoint Created By Kevin Kubis and SidathWanigasinghe,[object Object]
The evolution of_the_clock
The Sundial,[object Object],The sundial was created in 3500 BC and was the first instrument to measure time. It was also the oldest scientific device. The sun creates the shadow on the sundial that can be used to tell what time it is.,[object Object]
The Hourglass,[object Object],The was created some time in the 14th century. The sand falls through at a certain rate so people can be able to know how much time is passing. Different sized hourglasses are used for different amounts of time.,[object Object]
The Waterclock,[object Object],The water clock was created in 325 BC and one of the first clocks that was ever made. Water would drip down at a constant pace and collect at the bottom of a bowl that had markings on it to tell what time it was.,[object Object]
The First Spring Powered Clock,[object Object],The spring-powered clocks were invented in 1500. At the time it was a revelation because it was small and portable. It was a large improvement, but it still did not even have a minute hand.,[object Object]
The Pendulum Clock,[object Object],A pendulum clock uses a swinging pendulum to keep track of time. The pendulum clock was developed in 1656. This type of clock needs to be stationary in order to work properly because motion causes time inaccuracy. ,[object Object]
Digital Clock,[object Object],The digital clock shows a numerical representation of the current time. It was developed in 1972 by a watch company named Hamilton. There are two display formats used for this kind of clock. 24 hour notation which range from 0-23 and 12 hour notation, with the AM and PM indicator.,[object Object]
Harmful Effects,[object Object],Some clocks are coated in radium, which is a radioactive chemical. This material can harm you if it comes into contact with your body.,[object Object]
The Manufacturing Process of a Clock ,[object Object]
Sources Cited,[object Object],http://www.wisegeek.com/what-is-an-hourglass.htm,[object Object],http://www.chaddsfordhistory.org/history/clocks.htm,[object Object],http://en.wikipedia.org/wiki/Pendulum_clock,[object Object],http://wiki.answers.com/Q/The_history_of_digital_clock,[object Object],http://www.google.com/images?q=pendulum%20clock&rls=com.microsoft:en-us&oe=UTF-8&startIndex=&startPage=1&safe=active&um=1&ie=UTF-8&source=og&sa=N&hl=en&tab=wi&biw=1419&bih=690,[object Object],http://answers.yahoo.com/question/index?qid=20091219141804AA43jR7,[object Object],http://www.crunchgear.com/wp-content/pbucket/sonystyle.jpg,[object Object],http://www.bing.com/images/search?q=bedside+clock&form=QBIR&qs=n&sk=&sc=3-13&adlt=strict#focal=f1d9e439129a42cf60266fb95645af8a&furl=http%3A%2F%2Fwww.apartmenttherapy.com%2Fuimages%2Fchicago%2Fclockq031010.jpg,[object Object],http://gallery.riskaka.com/albums/album734/00859_radioactive_1920x1200.sized.jpg,[object Object]

Mais conteúdo relacionado

Mais de kubis7124

Reverse engineering p1
Reverse engineering p1Reverse engineering p1
Reverse engineering p1kubis7124
 
Reverse engineering
Reverse engineeringReverse engineering
Reverse engineeringkubis7124
 
Bottom half tb
Bottom half tbBottom half tb
Bottom half tbkubis7124
 
New train exploded tb
New train exploded tbNew train exploded tb
New train exploded tbkubis7124
 
Presentation7
Presentation7Presentation7
Presentation7kubis7124
 
All solutions 2
All solutions 2All solutions 2
All solutions 2kubis7124
 
All solutions
All solutionsAll solutions
All solutionskubis7124
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!kubis7124
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!kubis7124
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!kubis7124
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!kubis7124
 
The evolution of_the_clock
The evolution of_the_clockThe evolution of_the_clock
The evolution of_the_clockkubis7124
 
The evolution of_the_clock
The evolution of_the_clockThe evolution of_the_clock
The evolution of_the_clockkubis7124
 

Mais de kubis7124 (14)

Reverse engineering p1
Reverse engineering p1Reverse engineering p1
Reverse engineering p1
 
Reverse engineering
Reverse engineeringReverse engineering
Reverse engineering
 
Bottom half tb
Bottom half tbBottom half tb
Bottom half tb
 
New train exploded tb
New train exploded tbNew train exploded tb
New train exploded tb
 
Generator
GeneratorGenerator
Generator
 
Presentation7
Presentation7Presentation7
Presentation7
 
All solutions 2
All solutions 2All solutions 2
All solutions 2
 
All solutions
All solutionsAll solutions
All solutions
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!
 
Beyond the average cup!
Beyond the average cup!Beyond the average cup!
Beyond the average cup!
 
The evolution of_the_clock
The evolution of_the_clockThe evolution of_the_clock
The evolution of_the_clock
 
The evolution of_the_clock
The evolution of_the_clockThe evolution of_the_clock
The evolution of_the_clock
 

The evolution of_the_clock

  • 1.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.