Lava, steam... and a little lesson in physics. Exploring the Leidenfrost effect in volcanic eruptions
Over the last few days, impressive images of Etna erupting have once again captured the world's attention. Columns of ash, lava fountains, incandescent flows: the Sicilian volcano, one of the most active in Europe, reminds us of its power. But watching lobes of lava rush down the snow-covered slopes of the Valle del Bove, generating lahars (mudflows of volcanic origin composed of water and volcanic debris) and producing intense clouds of steam upon contact, an unexpected question came to mind: What connection could there be between a volcanic eruption and a water droplet “dancing” on a hot plate? Read more
