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The following video documents the sample after 30 days. The transformation remained gradual. The image was still visible through the water and glass, while sediment and prolonged contact with the water continued to affect the paper. As in the earlier stage, there was little clearly visible biological activity; the changes appeared to result mainly from immersion and material degradation. | The following video documents the sample after 30 days. The transformation remained gradual. The image was still visible through the water and glass, while sediment and prolonged contact with the water continued to affect the paper. As in the earlier stage, there was little clearly visible biological activity; the changes appeared to result mainly from immersion and material degradation. | ||
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