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
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
