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Dichter op de Huid - O dubbel d

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On the skin<br />

The physics of the surface<br />

The snake that cannot shed its skin perishes. So do the spirits who<br />

are prevented from changing their <strong>op</strong>inions; they cease to be spirits<br />

Friedrich Nietzsche<br />

Surface area is one si<strong>de</strong> times the other si<strong>de</strong> –<br />

for a square or a rectangle. For a triangle, the<br />

surface area is half the base times the height.<br />

For a circle, the surface area is pi times the<br />

radius (half the diameter) squared. The surface<br />

conceals and betrays. Even though it may be<br />

an abstract, meaningless, formless sheet, the<br />

surface <strong>de</strong>termines the content. The relation of<br />

the surface area to the volume which it conceals<br />

can even be – as we will see later – a matter of life and <strong>de</strong>ath.<br />

The relation between the surface area and the volume has<br />

a huge impact on the biological life quality of an organism, or on the<br />

nature of matter. If you consi<strong>de</strong>r that the surface area of a cube has<br />

become six times the si<strong>de</strong> times the si<strong>de</strong> instead of one si<strong>de</strong> times<br />

the si<strong>de</strong>, or in the case of a circle, four pi times the radius squared,<br />

something essential has changed between the surface area and the<br />

volume. However, does the volume say anything about the content?<br />

Or is it in fact the content that is provi<strong>de</strong>d meaning by the surface<br />

area?<br />

If the diameter of a round single-celled organism, or a<br />

molecule, increases in relation to its content, eventually it has less<br />

surface area available on the outsi<strong>de</strong>. The ratio of surface area to<br />

volume has changed. An increase in the ratio of surface to volume<br />

has advantages and disadvantages, which affects <strong>de</strong>ad as well as living<br />

matter.<br />

About / On / IN / Un<strong>de</strong>r thE skin<br />

Essay The physics of the surface<br />

If you span the skin of a donkey over a piss pot<br />

you shall have a drum<br />

Gustave Flaubert<br />

The surface draws a vacuum around the volume as the skin does<br />

around the bones of a dying body. The surface spreads, as the si<strong>de</strong>s<br />

stretched over our thighs. The surface entices a reaction, agreeable<br />

or disagreeable. The surface is the misleading betrayer of the<br />

content. But then again it is not.<br />

The surface of the molecules of which the matter is built<br />

Skin Deep / <strong>Dichter</strong> <strong>op</strong> <strong>de</strong> huid<br />

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