<p>Interesting article. Years ago I shared a house with a USGS geologist (a volcano expert). He was an unusual character! I still remember his story about a visiting scientist who was jumping around in pain while walking accross a field of hot rock. Everyone else was ok in their work boots, but this guy in his heavy duty work boots was getting his feet roasted. Turned out he had steel plates in his boots that conducted the heat right to his feet!</p>