Diatom
1878
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Lamprocyclas margatensis Shell fairly large, stout (approximately twice as long as maximum diameter), bell-shaped; apical hornhyaline, stout (10°… Read More
Lamprocyclas margatensis Shell fairly large, stout (approximately twice as long as maximum diameter), bell-shaped; apical hornhyaline, stout (10°), with four wide, triangular blades which run down sides of cephalis below it, its tip sharp; cephalis generally narrow conical (33°), sometimes decidedly asymmetrical and with cervix about 0.35 maximum diameter, length about same as diameter at base; thorax strongly (apically truncate) subhemispherical, thoracic maximum diameter only a little less than that of greatest width of shell, and length about 0.5 that amount; thoracic stricture marked by an internal transverse septum; abdomen laterally (and strongly) convex, maximum diameter reached at or near its middle, below this level shell contracts quickly to squarely truncated aperture; apertural margin about 0.82 maximum diameter in diameter, its margin with about a dozen, divergent, subequidistant, distally sharpened, strong, spikelike teeth; wall fairly thick save distally where it is thinner, dull gray; pores of cephalis 25 or more, fairly well defined in transverse rows, well separated, circular, quite large, of thorax somewhat larger but otherwise rather similar to those above, of abdomen larger again, perhaps 200, all subcircular and less deeply set than in thorax, otherwise pore characters similar to those above. Length, total, 240µm; diameter, maximum, 120µm, of largest pores, as much as 22µm. Calocyclas margatensis differs from rather similar C.Hannai, in being shorter with larger abdominal pores, and in very different apertural characters including larger spikelike radial apophyses. (Campbell and Clark) 1944. Read Less
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A task of the project was an analysis ofsiliceous skeletons of radiolarians, an extraction of logic of their structureand its application to creations of a new form.

Radiolaria belong to Actinopoda group –a subtype of water protozoans, comprising three groups: Acantharia, Heliozoaand Radiolaria. They include a few thousand of kinds, living exclusively inplankton of seas of full salinity, settling all layers of waters to the depthof 5 thousand metres. Not many small kinds are naked, remaining have a skeleton- built from siliceous needles which join in the centre of the body, or fromtiles of different shapes ( they form deposits of radiolarians) – covering bodyof these protozoans. They constitute an element of zooplankton, areheterotrophic and predatory. They have a size about 0.2 mm. A skeleton is theirextraordinary feature, which adopts various shapes and demonstratingfluorescent properties.

The process was divided in two stages.In the first radiolarians were analysed, which have a skeleton and their typeswere specified on account of geometrical properties supporting oneself withessential literature. In the second stage, one group was chosen (Lamprocyclasmargatensis*) and on its basis a digital model of its representative was built.Distinguishing a geometrical structure consisted on two-dimensional developingof the model of skeleton of radiolarian and recorded it in the simplest form aspossible, set of lines and points. Next such arisen model was administered to acomputer program so that on its base it was possible to create new forms. Thedesign process for a new geometrical formation was divided in two stages. Atfirst a two-dimensional model was modified, which next was processed to thethree-dimensional figure. In this way adesign loop came into existence letting for generating different variations tonew Radiolaria. Choice and production of one variation on the 3d printer wasthe last stage.

The received process as the product ofthis task is a way for searching and analysis of forms, and it can successfullybe applied at other targets with specification of the architecture or design.