School and Science: Astronomy and Space: Time

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Home : School and Science : Astronomy and Space : Time
LINKS:
A Walk Through Time http://physics.nist.gov/GenInt/Time/time.html An illustrated history of timekeeping from ancient times to the present. Countdown http://www.spiders.com/countdown/ Calculate the exact time in days, hours, minutes and seconds from now until your birthday or any other event. Daylight Saving Time http://www.mrdowling.com/601-daylight.html Why do we use daylight savings time and who invented it? International Standard Date and Time Notation http://www.cl.cam.ac.uk/~mgk25/iso-time.html International Standard ISO 8601 specifies numeric representations of date and time. It helps to avoid confusion caused by the many different national notations. Latitude and Longitude http://www-spof.gsfc.nasa.gov/stargaze/Slatlong.htm Introduction to latitude and longitude, a way of calculating exactly where you are anyplace on earth and a way to tell time. Local Times Around the World http://www.timeanddate.com/worldclock/ Find out what time it is anywhere in the world. Make Your Own Star Clock http://www.lhs.berkeley.edu/StarClock/starclockprintout.html Learn how to tell time by finding constellations in the night sky. Making a Horizontal Sundial http://www.lmsal.com/YPOP/Classroom/Lessons/Sundials/sundials.html Learn how to make a sundial. Instructions are for beginners, intermediate, or advanced, and work for either the northern or southern hemispheres. Making a Sun Clock http://www.exploratorium.edu/science_explorer/sunclock.html Before there were clocks, people used shadows to tell time. Learn how to make your own sun clock! Time http://www.mrdowling.com/601-time.html Just how do we measure time and what has Greenwich England got to do with it? Time Travel http://www.pbs.org/wgbh/nova/time/ Is time travel possible? See what Carl Sagan and Einstein had to say about time travel in this NOVA special. What Time is it! http://www.whattimeisit.com/ 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. World Time Converter http://www.gkindia.com/bitsol_time/ Provides online times converter and brief information about GMT/UTC.

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