Category: "Crystals on a capillary"

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 »

Some "Inexplicable" Snow-crystal Features: Applications of Lateral Growth

January 29th, 2020
Last October, I gave a talk at the University of Washington about our recent experiments and ideas about snow-crystal growth. My pitch was general and short, as few folks work in this area and I'd hate to bore them with a long lecture. So, I was… more »

Poster on corner pockets in snow crystals

February 18th, 2019
Last July, I attended the AMS (American Meteorological Society) 15th Conference on Cloud Physics, which was combined with a similar conference on atmospheric radiation. They have these about every four years, but I have missed all those going back to… more »

Akira's Corner Pockets

May 10th, 2016
The evanescent snow crystal appears out of nowhere The lines and boundaries on its faces tell a story a story of its birth and life But before it all vanishes does anyone hear the story?   A few years back, a correspondent of mine, Professor Akira… more »

Standard P1a Hexagonal Crystal, Front and Side

December 19th, 2014
It didn't start so symmetrical, but became so as it grew: This, the left crystal of the pair described two posts below, grew much more slowly on its basal faces (front & back in the left image). The way it grew, and its big difference with the crystal… more »

A Crystal Pair, Several Views, and a "Man on the Crystal"

December 19th, 2014
One advantage of the new apparatus is the capability to grow up to three crystals at a time, each on its own capillary. It is also very useful being able to move each capillary around. Having success with a single crystal, we tried it with two, and much… more »

New Capillary Crystal-Growth Device

December 11th, 2014
After several years of planning and several more years of construction, our new crystal-growth device is operational. We are now tuning the electronics, vacuum system, data collection method, and other aspects, but we can indeed produce ice crystals on… more »

The fun of shooting down your own theories

April 10th, 2014
Thomas H. Huxley once wrote the famous line: The great tragedy of Science: the slaying of a beautiful hypothesis by an ugly fact. Great man and a catchy phrase, but perhaps he was being a bit overdramatic. To me, the slaying of a “hypothesis” (i.e., pet… more »