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ProCon
Daylight Savings Time
An entomologist named Geroge Vernon Hudson is credited with proposing Daylight Saving Time (DST) so he could better study his insects. Using the informative website, scholars read a brief introduction to the topic and then explore the...
Curated OER
The Preterite Tense
Focus on how to conjugate Spanish verbs in the preterite. You can use this webpage to inform your own lesson on the preterite, take a day in the computer lab, or flip your classroom and have pupils examine the page for homework. There is...
Curated OER
Telling Time
In this time telling worksheet, students discover how to tell time on a clock after discovering all the parts of a clock and the purposes of the little and big hands.
National Institute of Standards and Technology (NIST)
Nist Physics Laboratory: A Walk Through Time
An illustrated history of timekeeping from ancient times to the present. Includes information on ancient calendars, early clocks, a revolution in timekeeping, world time scales and time zones, and the NIST standards.
Science Museum, London
Science Museum: Atomic Clocks
The first atomic clock was designed by Louis Essen in 1955. Find out about how it works and how atomic clock technology has developed.
Fourmilab Switzerland
John Walker: C Ship: The Dilation of Time
A good mathematical account of what happens to time as you approach c: the speed of light. Also provides a rather a fascinating video (fly through the Lattice) - don't miss it. Take some time and explore this site.
Government of Alberta
Learn alberta.ca: Mathematics Glossary: Analog Clock
Get a visual and animated definition of the analog clock and how to use it from LearnAlberta.ca's Mathematics Glossary.
US Navy
U.s. Navy: Atomic Clocks
This site from the U.S. Navy provides a great description of the history and workings of cesium based atomic clocks. Very interesting.
Ducksters
Ducksters: Basketball for Kids: The Clock and Timing
Kids learn about the timing and the clock in basketball. How long is a basketball game.
Extreme Science
Extreme Science: What Is the Time?
Take a walk through time as Extreme Science explains time starting with ancient calendars and early clocks to how the National Institute of Standards and Technology uses time today.
Florida State University
Florida State University: Magnet Lab: Electric Meter 1872
The invention of the light bulb quickly created the need to track people's electricity usage. In 1872, Samuel Gardiner built the first simple power meter: a lamp with an attached clock that recorded the time the light was on.
Other
The Astrolabe: Home Page
This site provides a very general overview of astrolabe principles with links to other pages for more detailed information.