[roer]

It seems that there is a pretty good explanation for the slipperiness of ice now: https://youtu.be/20zyW0qoSTE (referencing this article: https://www.nature.com/articles/s41586-024-07427-8)

Layman tl;dw: on the surface of ice the crystal structure isn't perfect, leaving some water molecules able to move around as if they were in a liquid.

[OldGuyInTheClub]

Thanks for this. Lots of familiar names in the references including, in a big surprise, my undergraduate research advisor and another colleague with whom I worked closely in his lab. My first published scientific paper was with both of them. My advisor is a legendary surface scientist but I had no idea he had studied ice formation on his beloved single-crystal surfaces! I look forward to reading the full paper.

[JumpCrisscross]

Does their work extend to snow and skiing?