Category: "Hair ice"

The Curious World of Ice and Snow: Part 3 of 3

February 8th, 2020
These 14 slides are the final (third) section of my Science Cafe talk. (Plus two slides added as an introduction.) As in the previous section (previous post), this section mostly has ice forms that come from the melt, but the ice shapes here are a… more »

The Curious World of Ice and Snow: Part 2 of 3

February 8th, 2020
As I mention in Part 1, these are slides I gave for a Science Cafe discussion session in 2012. This section focuses on ice that forms directly from the melt, that is, the liquid phase. Contrast these cases with those in part 1 in which the ice grew from… more »

Lots of Hair Ice

December 19th, 2014
My older sister sent me this photo on a recent morning. This is hair ice growing from an alder tree. All of it grew overnight, formed when liquid water near the outer trunk surface (beneath the bark) froze. This creates an ice front in each pore-like… more »

Hair Ice on Wood and Pavement

January 16th, 2013
The morning after a rapid cool-down, I found hair ice on an alder log. From a distance, it looked unnaturally white, like it was a bit of discarded cotton or white paper, but the closer I got to it, the more incredible it seemed. more »