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Armin Lässer
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Armin Lässer's resources
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Grundriss Aufriss Kreuzriss
Activity
Kundt'sche Röhre
Activity
Sonnenuntergangswinkel
Activity
Frontalriss
Activity
Armin Lässer's favorite resources
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Schuß um die Erde nach Newton (Newton's cannon)
Activity
Interferenz zweier Kreiswellen mit Zeigern
Activity
Bahn der Sonne
Activity
Sonnenuhr
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