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A Few Irregulars
I hear the birds sing in the morning - the Cardinal with his 'bomb drop' song, the slurry scrabbly song of starlings at first light, and the 'To-hee to-hee chickachickadeedeedee' of Chickadees - the only bird that sings in deep winter, and gets all the more enthusiastic as spring starts to show.
Snow crystal season is coming to an end - another year.
Photographing snow crystals is a funny thing. I tend to select the best and the brightest, the most symmetrical, the most regular, the most ... extraordinary. It is a biased selection process, for sure. I wipe away thousand of snow crystals in an evening, and take photos of only a few dozen. There is a huge selection bias in play in the photos of snow crystals that are presented...
Of course - no one wants to see photos of the imperfect, the unsymmetrical, the broken or worn. That would be like walking down the street and looking at those passing by... Show us Hollywood Celebrities - the paragons of glamour - and not the ordinary dust of creation.
What can I say? It would be dishonest to ignore the vast numbers of irregular and flawed snow crystals. They outnumber the perfect ones one an incredible scale. So here are a few imperfect crystals - I have to say, they are more perfect than not, in that the truly disorganized have been ignored.
So - how many arms are on this crystal? I vote for ten, but it looks like nine or eleven are possible answers as well. And I thought snow crystals grew in multiples of six - but maybe not when they break up, fracture, grow and re-grow again.
Here's a crystal that is a little asymmetrical. It also has an interesting feature in that one pair of arms have grown across the center.
Here's another show showing a similar center band - the crystal was not laying flat on the glass, so the edges of the arms are visually soft.
A snow crystal grows with a lack of symmetry when it lingers near a source of water on one side - lie passing by a big rain drop in the clouds - that creates a different in the relative humidity between one end of the crystal and the other. Here are three snow crystals showing this lack of symmetry -
Here's a simple snow crystal that is a composite of three individual snow crystals - or were they really ever individual, or did it just start growing from three nearby nuclei?
And lastly - here is one that is not irregular at all. I think this is a Magono-Lee P6d - stellar with spatial dendrites.