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Making a simple astrolabe
Making a Simple Astrolabe
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Figure Out Where You Are With Nothing But a Watch and Protractor
survival folder
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Make Your Own Quadrant (Astrolabe) Used For Early Navigation
Kid Activities
Make Your Own Quadrant (Astrolabe) Used For Early Navigation
School time
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4 Ways to Make a Clinometer
Scienza della terra
How to Find Your Latitude Using Polaris
off the wall
Celestial Navigation Math
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Printable Sundial Collection
Relojes
Applet: Gunter's Quadrant
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HELIOS Solar Ring - a 400 year success story
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Reference Card - Declination & Compass Rose
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Objekt des Monats, Juli 2008
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