When Mount Vesuvius erupted in 79 AD, some citizens were vaporized, some escaped, and many were killed and then buried under rock, ash, and lava. Over the years, the soft tissues rotted away, leaving human-shaped voids in the rock. In the 19th century, Giuseppe Fiorelli developed a method of preserving those voids by filling them with plaster, giving us at least the shape of the victims. But what's inside the plaster? A recent discovery revealed that one man may have been a doctor, because he was killed carrying a bag. CT scans and X-rays found a locking device inside the plaster, coins, and metal instruments of the kind that Roman doctors used.
But even more interesting is the discovery of how the plaster casts have been messed with over the more than hundred years since they were made. Scientists used the same type of scans to check whether there are bones present in the plaster. They discovered that some of the plaster casts had been reinforced with steel rods for stability, and bones have been removed! Some even had artistic work done to make them more interesting. Read about these discoveries at Ars Technica. -via Boing Boing


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