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Spiegelwet. Zo weerkaatsen spiegels een smalle lichtbundel Transferred from org nl Ischa at org nl Released into the public domain by the author nl Ischa original upload log page nl Spiegelwet Ischa bytes no Ischa bytes no Zo weerkaatsen spiegels een smalle lichtbundel Zelfgemaakte media zelfgemaakt Reflection