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Time Keeping |
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| britannica.com | |||||
| The Time Museum | |||||
| Sundials - Wikipedia | Introduction to the Astrolabe | Throw Away Your Wristwatch | |||
| British Sundial Society | astrolabes.org | (Pennsic University Class) | (Pennsic University Class) | ||
| 10th Century Sundial | |||||
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Sundials.org |
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| Clepsydra | |||||
| Time Keeping Links | |||||
| Accurate Sundials (tm) | |||||
| Sun Dial Primer | |||||
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Scientific Instruments of Medieval & Renaissance Europe | 2007 Handout | 2011 Handout | ||
| >>shortcut to Astrolabes<< | |||||
| Throw Away Your Wristwatch | |||||
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