Pyramid, Funnel & Golden Limit — Interstellar Lighthouse

Surface View

Funnel & pyramidDrag to rotate · scroll to zoom

Shown: z = 0.5–12 units · positive z points down

Cut viewed straight on

L / W —

Infinite-depth limit —

Surface Pyramid face = cutting plane Actual cut Golden ellipse, same length

Pyramid & cut position 3.20 units Face angle from horizontal 51.83° · locked

Go to radius level

Length L

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Along the tilted plane · units

Width W

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Across the plane · units

Vertical span H

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Top to bottom of cut · units

Ratio calculations & comparisons

Target ratio