A fire brigade training visit down into the station's ice tunnels netted a few nice photos. I'll post more when I have a chance later. For now, the ice crystals on a light fixture adjacent to the new rodwell (i.e. a big cavity of ice melted out to liquid water to supply the station) will have to suffice. I have only really seen these in cold, protected places where the wind cannot break them. Even sound does not carry well with floor, walls, and ceiling of firn (compacted snow not yet turned to ice).
“Iced drinks are deadly...The ice is usually full of microbes, all the more spiteful for their temporary imprisonment.”~Rev. Frank Tatchell, ”The Happy Traveller” (1923)
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