Internet archive to the rescue! This is not a particular capture by the way, only one that still had content on the page:

https://web.archive.org/web/20190216145020/http://my.ilstu.e...

this is one of the most common causes of damage and failure for low-cost small radio towers (such as a 60' to 80' that a ham radio enthusiast might erect in their yard). Usually because the hollow tubular legs of a triangular lattice tower aren't set into gravel at the bottom of the foundation concrete block, and there's no way for water to drain out. Then you have not only rust issues to be concerned about for corrosion, but also freeze/thaw cycles.

Any tower type with hollow legs can see this problem if not installed right.

Seen with small Rohn 45G class towers that are put up by amateurs.

https://www.rohnnet.com/rohn-45g-tower

A link to some more pictures: https://www.kosmosjournal.org/news/frost-flowers-natures-exq...

A natural, sub-zero, 3D printer. Neat.

Wonder if one could print a massive space telescope lens this way

Almost certainly not.

Search for "ice ribbons" on Google images.

Was coming in to say the same thing.

Super cool though.