28 Critical Reflections: random 1 t0 7

Carving is interrelated masses conveying an emotion; a perfect relationship between the mind and the colour, light and weight which is the stone, made by the hand which feels. It must be so essentially sculpture that it can exist in no other way, something completely the right size but which has growth, something still and yet having movement, so very quiet and yet with a real vitality.[7]

Shiny, and streamlined. With fairings, you know? And fins. All around them, people flying on their own, individually, with some kind of back-pack... jet, I think. No noise. Even the birds weren't disturbed, darting and swooping amid the human flocks.[2]

The singularity of specular reflections is demanded by the fact that if one tries to apply to them the schema of communicational process many puzzling questions arise: source and addressee coincide (at least in cases where a human looks at him or herself in the mirror); receiver and transmitter coincide; expression and content coincide since the content of the reflected image is just the image of a body, not the body itself; as a matter of fact the referent of a mirror image is pure visual matter.[3]

In between the towers and under the ramps you could see what looked like parks, or gardens, but some of them had wilderness areas, and there were tigers. At least they looked like tigers, but maybe that was...[2]

This can be explained by the existence of microfacets. We assume that surfaces that are not perfectly smooth are composed of many very tiny facets, each of which is a perfect specular reflector. These microfacets have normals that are distributed about the normal of the approximating smooth surface. The degree to which microfacet normals differ from the smooth surface normal is determined by the roughness of the surface. At points on the object where the smooth normal is close to the half-angle direction, many of the microfacets point in the half-angle direction and so the specular highlight is bright. As one moves away from the center of the highlight, the smooth normal and the half-angle direction get farther apart; the number of microfacets oriented in the half-angle direction falls, and so the intensity of the highlight falls off to zero.[6]

This can be explained by the existence of microfacets. We assume that surfaces that are not perfectly smooth are composed of many very tiny facets, each of which is a perfect specular reflector. These microfacets have normals that are distributed about the normal of the approximating smooth surface. The degree to which microfacet normals differ from the smooth surface normal is determined by the roughness of the surface. At points on the object where the smooth normal is close to the half-angle direction, many of the microfacets point in the half-angle direction and so the specular highlight is bright. As one moves away from the center of the highlight, the smooth normal and the half-angle direction get farther apart; the number of microfacets oriented in the half-angle direction falls, and so the intensity of the highlight falls off to zero.[6]

Oh yes, there were birds, but not like the birds you see today. Big as eagles and coloured like kingfishers. They roosted on the ledges of the towers, and under the ramps. Long curving ribbon ramps, with... Obviously these were too heavy to fly, so they had to go on the roads. Very fast. Automated, of course.[2]

28 Critical Reflections random 8 to 14
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Sources

[1] http://www.neworleanspast.com/art/id62.html

[2] Ken MacLeod, Reflective Surfaces, New Scientist, 2009.

[3] Umberto Eco, A Theory of Semiotics, Indiana University Press, 1979.

[4] Clive Fencott, Reflections on seeing River Form in Barbra Hepworth's garden in St. Ives.

[5] http://www.flickr.com/photos/nigelhomer/316548379/

[6] http://en.wikipedia.org/wiki/Specular_highlight

[7] http://www.barbarahepworth.org.uk/texts/

[8] tripadvisor.co.uk