VIDEO: What happens when you step on lava
Stepping on molten lava may not seem like the greatest idea - especially when you're just wearing runners. But, according to the video's description, this guy is a professional (Volcanologist? Lava stepper?).
Whatever he is, he demonstrates what happens when you step on lava - your foot sinks slightly and then catches on fire.
Here's what's actually going on:
"This video shows how pressure applied to this dense material only causes a slight indentation. While this may not be surprising (it is liquid rock), I think that many people think of lava as more of a hot-watery-like substance. You would never fall into a lava lake the way you would a swimming pool, the molten rock is much more dense, so you would simply land on it, sink a little, and be burned."
The video description also carries a warning to not try this at home. So no stepping on that molten lava at home in the back garden.
Got it.
