What a magnificent sight! 
Chess Daily News from Susan Polgar
BIG Alaskan Glacier
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What a magnificent sight!
What is that blue stuff on the glacier?
BTW, Alexy Root was good on chess.fm last night, promoting her book?
Her most interesting info was that if you teach someone something too easy they get bored, if you teach them something too hard they get anxious. So you have to learn something just barely above your current level to maintain interest to get better. Apparently , that is a main poin tin Csikszentmihaly’s book “Flow”.
[So I should have bought that first instead of his book “Evolving self” that I have had and I probably would have gotten a lot more out of both.] 🙂
The “blue stuff” is a trick of the light.
Glaciers are blue for roughly the same reason that pure ocean water is blue- that is, water and ice tend to absorb red and yellow light and preferentially allow blue light to pass. When light hits the top of the glacier, all colors are “allowed in” but, when the ice is thick, the red end of the spectrum is preferentially absorbed. More blue light makes it back to the surface of the ice and makes it appear blue.
Brad H.
By the way, enjoy this view of the glacier now, in 50 years or so, there won’t be many of them left. 🙂
Brad H.