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Elke Stangl (elkement) @elkement.art · 17/03/2026

"Circles to Lines", work in progress. Via stereographic projection, circles on a sphere containing the North Pole are projected onto lines in the equatorial plane. Gessoed and sanded canvas - a difficult surface to use with watercolors as the water is not absorbed. #SciArt #MathSky

Photo of a canvas a geometric drawing, work in progress, traditional descriptive geometry, coloring the tesselation generated by the projection rays with watercolors: Six circles on a sphere containing the North Pole are projected onto lines. By elkement 2024/2026.

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Elke Stangl (elkement) @elkement.art · 17/03/2026

This is a photo of the construction stage - traditional descriptive geometry: I am using the top view and side view to construct the "3D" view from a different perspective. So, technically this is "orthographic projection of stereographic projection".

Photo of a canvas a geometric drawing, work in progress, graphite pencil construction, traditional descriptive geometry: Six circles on a sphere containing the North Pole are projected onto lines. By elkement 2024/2026.

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