Showing posts with label water. Show all posts
Showing posts with label water. Show all posts
Sunday, 3 January 2021
Friday, 8 December 2017
Tuesday, 17 January 2017
Sunday, 1 January 2017
Thursday, 13 August 2015
Saturday, 24 January 2015
chalk stream
http://www.fishpal.com/England/ChalkStreams/Map.asp?dom=Pal
Chalk streams are streams that flow through chalk hills towards the sea. They are typically wide, shallow, and due to the filtering effect of the chalk they are alkaline and clear. There are 210 chalk streams in the world, and 160 of those are in England.[1] Chalk streams are popular with fly fishermen who fish for trout on these rivers.
Chalk geology is porous, and rain falling onto chalk hills percolate directly into the ground, where the chalk acts as an aquifer. The water filters through the chalk, re-emerging lower down the slope in springs. The chalk acts as a temporary reservoir by regulating the amount of water supplied to the springs. This is why many chalk streams in the UK have stable flow regimes that vary only slightly over time. The temperature of the emerging surface water is fairly stable and rarely deviates from 10°C (50°F). On cold winter mornings, it can look as though steam is rising above the relatively warm river.
Chalk is a soluble geology in rainwater because rain is naturally slightly acidic. The products of chalk weathering are dissolved in rainwater and are transported in stream flow. Chalk streams transport little suspended material (unlike most rivers), but are uniquely mineral-rich. The surface water of chalk streams is commonly described as 'gin clear'. The channel bed consists of angular flint gravel derived from the natural flint deposits found embedded within the chalk geology that is characteristically free from fine sediment deposits.
The unique characteristics of chalk stream ecology are due to stable temperature and flow regimes combined with highly transparent water and lack of sand grade sediment particles.
The chalk streams have been intensively managed for many generations
wikipedia
Chalk streams are streams that flow through chalk hills towards the sea. They are typically wide, shallow, and due to the filtering effect of the chalk they are alkaline and clear. There are 210 chalk streams in the world, and 160 of those are in England.[1] Chalk streams are popular with fly fishermen who fish for trout on these rivers.
Chalk geology is porous, and rain falling onto chalk hills percolate directly into the ground, where the chalk acts as an aquifer. The water filters through the chalk, re-emerging lower down the slope in springs. The chalk acts as a temporary reservoir by regulating the amount of water supplied to the springs. This is why many chalk streams in the UK have stable flow regimes that vary only slightly over time. The temperature of the emerging surface water is fairly stable and rarely deviates from 10°C (50°F). On cold winter mornings, it can look as though steam is rising above the relatively warm river.
Chalk is a soluble geology in rainwater because rain is naturally slightly acidic. The products of chalk weathering are dissolved in rainwater and are transported in stream flow. Chalk streams transport little suspended material (unlike most rivers), but are uniquely mineral-rich. The surface water of chalk streams is commonly described as 'gin clear'. The channel bed consists of angular flint gravel derived from the natural flint deposits found embedded within the chalk geology that is characteristically free from fine sediment deposits.
The unique characteristics of chalk stream ecology are due to stable temperature and flow regimes combined with highly transparent water and lack of sand grade sediment particles.
The chalk streams have been intensively managed for many generations
wikipedia
Monday, 29 September 2014
benito juarez internatonal
The earliest maps of Mexico city are the 1524 Nuremberg Map and the Uppsala Plan from 1555 ....They consist of very few features - main streets, large rectangular areas, a few scattered houses, boats and fish.On close inspection, the first maps of the city are nothing more than Cartesian reduction of space, diagrams imposed upon a territory which was, to a great extent, only water.....
....Those tears are a simple moist tribute to landing on that great desert lake fed by rivers that have dried up or been channelled underground, and which today seem like little more than empty, arid words ; Churubusco, Hondo, Magdalena, Chico, Colmena, Piedad, Mixcoac, Tacubaya.
Luiselli
Saturday, 17 May 2014
Wednesday, 15 May 2013
Saturday, 26 November 2011
Monday, 14 March 2011
The Phenomenon of the Future
The sky above the port was the color of television, tuned to a dead channel.
Gibson / Neuromancer
Over the world as it ends in decrepitude is a pale sky that may perhaps dissipate with the clouds - streaks of used sunsets that bleed into the dormant waters of a river, submerged beneath rays and drops. The trees are bored, and beneath their whitened foliage [whitened by the dust of time, not by the dust of roads], rises the tent of the Revealer of Things Past…
Mallarme / Divagations / 11
The sky is thin as paper here.
Burroughs / Cities of the Red Night
The narrow staircase pushes me into the attic where the wall paper is loose. There are no images because the room is itself an image.
The yellow-orange cloth wrapping the skylight seems to hold a fallen sun; a softly illuminating sun of about one meter diameter, flat like a coin. I sweat and dream, washed up on a cold beach at midday.
A screaming comes across the sky. It has happened before, but there is nothing to compare it to now.
Pynchon / Gravity's RAINBOW
‘The sea had receded and the ground was grey and brownish like the sky. Abstraction grey. Calmly, intensely, hopelessly, the ultimate abstraction took hold of me.’ It seems to me that the ‘abstraction grey’, which recalls Hegel’s ‘grey on grey’ of theory, is the place to begin not so much thinking the ‘future’ as thinking the present.
noys/ beradi
"When philosophy paints its grey on grey, then has a shape of life grown old. By philosophy's grey on grey it cannot be rejuvenated but only understood. The owl of Minerva spreads its wings only with the falling of the dusk." Philosophy of Right ( (1821), translated by T. M. Knox, (1952)) p. 13
The sky had lifted at least thirty feet.
I sat there, not moving. The shock must have cracked the
pavement, my right hand fumbled in the rubble. As I breathed,
the silence stilled the explosion of stars whose sparks still
crackled in my head. The white lines in the pavement showed
dimly in the darkness: my hand left the ground, felt up my left
arm, up to my shoulder, back down my ribs to my hips: noth-
ing, I was intact, I could go on.
I stood up. Falling flat on my face, sprawled out like a cross, I
remembered that I had forgotten to check over my legs as well.
ASTRAGAL /sarrazin
Wednesday, 13 October 2010
Monday, 11 October 2010
weißer Papierfläche
Muybridge, The First Fall, 1867
Muybridge/ Pi-Wi-Ack (Shower of Stars), Vernal Falls, 400 Feet, Valley of Yosemite 1872 photograph | albumen print
The identity of the background of a drawing is quite different from that of the white surface (weißer Papierfläche) on which it is inscribed. We might even deny it that identity by thinking of it as surge of white waves (though these might not even be distinguishable to the naked eye.) (eventuell mit bloßem Auge nicht unterscheidbarer) (604/83).
Framing Pictures, Transcending Marks: Walter Benjamin’s ‘On Paintings, Signs
and Marks’
Andrew Benjamin
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