Detailed view of weathered terracotta roof tiles showcasing patterns and textures.

Roof tiles as thermometers

Scientists used magnetism in roof tiles and rocks to read the heat of the surges.

Mount Vesuvius 79 AD: Reading Heat with Magnetism

Infrared lamp illuminating test samples in a laboratory setting, highlighting experimental research.

Unblocking the past

Heating past the Curie point “unblocks” old magnetism. By reheating samples in 40 °C steps, they found each deposit’s equilibrium temperature.

Mount Vesuvius 79 AD: Reading Heat with Magnetism

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Mount Vesuvius 79 AD: Reading Heat with Magnetism | DeepSwipe