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Video: How Hair Ice Forms

In 2013, American Scientist featured an article on odd ice formations on plant stems.

One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct.

We asked Christian Mätzler, a physicist at the University of Bern in Switzerland, and the lead author of the study, to provide an update on the hair ice formation mechanism.

See the associated blog for a full transcript of the video.


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