Time Astronomy and Space Science
Time Astronomy and Space Science
Top: Kids and Teens: School Time: Science: Astronomy and Space: Time
See Also:
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Latitude and Longitude - Introduction to latitude and longitude, a way of calculating exactly where you are anyplace on earth and a way to tell time.
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The Hourglass - The University of Houston College of engineering, describes how an hourglass works and also provides interesting facts about this timekeeper.
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Industrious Clock - Clock using video of a hand drawing to display the time.
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Countdown - Calculate the exact time in days, hours, minutes and seconds from now until your birthday or any other event.
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National Geographic Kids Magazine: Water Clock Experiment - Demonstrates how water clocks can be used to keep time.
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World Time Converter - Provides online times converter and brief information about GMT/UTC.
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Discover Magazine: Time Machine - Article explores a clock designed to keep accurate time for 10,000 years.
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Local Times Around the World - Find out what time it is anywhere in the world.
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On Time - Learn about the history of time measuring devices in this online Smithsonian Institute exhibit. Page discusses how the accuracy of watches and clocks affected people's perception and usage of time.
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A History of Time - A two-part article that discusses physicist's evolving view of time.
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How Stuff Works: Time - Complete five-part explanation of time and how it is measured, including information about clocks, time zones, and calendars.
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Making a Horizontal Sundial - Learn how to make a sundial. Instructions are for beginners, intermediate, or advanced, and work for either the northern or southern hemispheres.
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International Standard Date and Time Notation - International Standard ISO 8601 specifies numeric representations of date and time. It helps to avoid confusion caused by the many different national notations.
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The Galileo Project - Pendulum Clock - Describes Galileo's work on pendulums and the pendulum clock.
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Daylight Saving Time - Why do we use daylight savings time and who invented it?
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Time - Just how do we measure time and what has Greenwich England got to do with it?
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A Walk Through Time - An illustrated history of timekeeping from ancient times to the present.
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Making a Sun Clock - Before there were clocks, people used shadows to tell time. Learn how to make your own sun clock!
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Time Travel - Is time travel possible? See what Carl Sagan and Einstein had to say about time travel in this NOVA special.
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NPR : 'Seize the Daylight' - Talks about the complicated politics and curious history of daylight standard time.
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US Library of Congress - How does an hourglass measure time? - Answers questions about how an hourglass keeps time and what are the contributing factors determining how long an hourglass lasts.
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Science Museum - Atomic Clocks - Talks about how different types of atomic clocks work, and the history of their invention.
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When Does Daylight Savings Time Occur - Explanation of when and why we have daylight savings time.
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What Time Is It! - Gives the current time, synchronized by NIST. Close to 100 different time zones supported, as well as the ability to select the default time zone.
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