Whether it’s Home Alone’s booby-trapped icy steps, Bambi learning his legs have zero traction, or an Ice Age chase scene defying gravity, ice has been comedy gold for decades. In real life, the joke lands a little harder (sometimes literally).

We all know ice is slippery. The more surprising part is why it’s slippery and how long it took scientists to start agreeing on something closer to an answer. Researchers have long known the surface of ice behaves like it’s wearing a microscopic “wet” layer that lubricates motion. What they’ve argued about for nearly 200 years is what creates that layer in the first place (3,4).

So, let’s treat this like a mystery. Ice is the crime scene. Your dignity is the victim. Here are the main suspects.

Continue reading “The Science of Slipping… Blame the Molecules!”