Aerogel

(redirected from Blue smoke)
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Aerogel

An ultralight substance composed of silica, aluminium oxide, chromium oxide, zirconia, carbon and other substances, which is transparent, has significant insulating and sound-attenuating properties, and may have currency as a replacement for ozone layer-depleting CFCs.
References in classic literature ?
Fentolin had lit a cigarette and was watching the blue smoke curl upwards to the ceiling.
On the hill-top above me sat the rising moon; pale yet as a cloud, but brightening momentarily, she looked over Hay, which, half lost in trees, sent up a blue smoke from its few chimneys: it was yet a mile distant, but in the absolute hush I could hear plainly its thin murmurs of life.
McCay sucked his cigar in silence for a while, watching with dreamy eyes the blue smoke as it curled ceiling-ward.
But the fact was so, for at the next bend in the lane Maggie actually saw the little semicircular black tent with the blue smoke rising before it, which was to be her refuge from all the blighting obloquy that had pursued her in civilized life.
They were all thrown a little off their balance, and the more fanciful Fanshaw had even some difficulty in recovering his, as they saw a long, thin stream of blue smoke ascending silently into the end of the evening light.
As they crept up the hill the tops of a few birch-trees came in sight, and blue smoke curling up through their delicate light boughs; and then the little white thatched home and inclosed ground of Farmer Ives, lying cradled in the dingle, with the gay gorse common rising behind and on both sides; while in front, after traversing a gentle slope, the eye might travel for miles and miles over the rich vale.
A wreath of blue smoke floated up through a hole in the thatch, and was the only sign of life in the place, save a great black hound which lay sleeping chained to the door-post.
A blue smoke went curling up from the chimney, and was almost the pleasantest part of the spectacle to Ulysses.
Raffles merely produced a perfect oval of blue smoke before replying.
Totally marvellous George and his medicine Capture George's excitement as he stirs his incredible mixture, watching the bubbling blue smoke waft across the bedding.
Supply of Red and Blue Smoke Dye solutions in accordance with DEFENCE STANDARD 68-272 (Issue 1 Amendment 1) for use in the RAF Aerobatic displays.
If you are behind an old car and see blue smoke coming out, be warned that you are breathing in tiny droplets of nasty oil, he added.