blog postsHow pyroclastic flows seem to defy frictionApr 9, 2019 10:30 am by news@illinois.eduIllinois in the NewsShare on FacebookTweetEmailImagesVolcanologists have long been baffled by the way pyroclastic flows seem to defy friction. But in a study published in the journal Nature Geoscience, a team of scientists has finally pulled back the curtain on these catastrophic currents.Share on FacebookTweetEmail