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Nautilus | by Surfactant
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Nautilus

Thin section of chambered nautilus shell x-ray using direct film technique. For those that know, this was a 40 kVp, 100 mA, 120 second exposure. I had to copy it with my camera, so unfortunately, the exquisite detail possible with direct film x-ray is not apparent here.

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Taken on September 14, 2007