Gravitation

3
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Identifying Particles and their Properties in Detectors

3
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Our Solar System

3
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Dagens längd

3
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Kartläggning av stjärnorna III - Stjärnbilder

3
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Kartläggning av stjärnorna IV - Stjärnhimlen

3
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Manufacturing Simple Astronomy Measuring Tools

3
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Measurement of solar system's objects in human units

3
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Olympic Games on the Moon

3
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Planetsystemet III - Planeternas relativa avstånd

3
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