- LeapSecond.com
Dedicated to precise time and frequency - one man's quest for the most accurate clock.
www.leapsecond.com
- AResearchGuide.com: Measuring Time
Links for research on ancient and modern methods of measuring time.
www.aresearchguide.com/time.html
- History of Clocks, The
Sundials, water, pendulum, and quartz clocks to measure time.
www.arcytech.org/java/clock/clock_history.html
- Time and History of its Measurement
About clepsydras, sundials, and more.
www.zetnet.co.uk/sea.jnp/earth.4/time.htm
- A History of Time: Classical Time
Conceptualization of time across the ages and inventors.
www-groups.dcs.st-and.ac.uk/~history/HistTopics/Time_1.html
- History of Time, The
Brief note on the concept of time.
library.thinkquest.org/C008179/historical/basichistory.html
- Clocks and Time: The alt.horology Newsgroup
Description of the Usenet newsgroup that is interested in all aspects of horology.
www.ubr.com/clocks/newsgrp/althor.html
- Astral Clock in Ardekan, The
Describes the operation and structure of Ardakaan's astral clock which is considered a vestige of the Yazdgirdian calendar.
essenes.net/astralclock.html
- Visualizing Video Streams Using Sand Glass Metaphor
Ancient and modern methods like water, candle, incense, and sand clocks for visualizing spatio-temporal relationships.
www-db.stanford.edu/~echang/Class/public/report.html
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