Yes I checked out some of the posts. Thanks for the information.
I live about 250 miles south of you, and do not recall seeing one of these until about 2 years ago.Yes I checked out some of the posts. Thanks for the information.
Interestingly, the phenomenon appears fairly often here in Brish Columbia- we live on the east coast of Vancouver Island so it can be quite wet all winter, but we don't usually see low temperatures. Certainly the first time I have seen this happen.
That is a neat shot! Unless you see one in person, I gather some people will declare the phenomenon to be impossible.I live about 250 miles south of you, and do not recall seeing one of these until about 2 years ago.
I've been living here for 56 years, so that's a long time not to have noticed something like that.
In a thread predating my presence here at the forum, Strange Ice cube behavior, two members at similar latitudes(40°-48°) also were not familiar with the process.
A third, in Toronto, was able to identify the phenomenon.
Here's a picture of mine, taken January of 2014.
I was very proud of it.
I have no idea how those other shapes form, and wiki's "Mechanism of formation" explanation is a bit too long and story-problem-ish for me to follow.That is a neat shot! Unless you see one in person, I gather some people will declare the phenomenon to be impossible.
Some food for thought going on here. While I haven't been able to get a measurement on the angles, I found that in the case I photographed, there were two related objects: one was a triangular stalagmite shape, the other larger object is a hollow triangular "vase" shape. The angles of the triangles seem to be very similar whether a solid or vase-like structure. I also note that the structures appear to have a distinctive lean, again apparently the same whether solid or hollow.
Whilst researching ice, I read that ice takes on cubic or trapezoidal crystal forms. I wonder now if there is some relationship whereby the typical hexagonal shape adopted by ice crystals in the air-i.e. snowflakes and the trapezoidal form we see influence each other. The triangles are suggestive!