Saddle-Tile Letterpress
Operate a curved mathematical press to measure Poincaré distance, classify regular inlays, and discover why the disk rim is unreachable.
More geometry creations

Solstice Courtyard
Walk a geometric year through four stone season gates and measure axial tilt, ideal daylight and solar-noon shadows.

Geocentric Sighting Rostrum
Turn two synthetic circular orbits and pin an apparent retrograde sightline sequence.

Chromatic Reflection Drum
Hinge a 1968 optical drum, place a chiral acetate seed, and develop nine exact reflection-group contact sheets.

Fold Kinematics Conservatory
Operate eight tactile paper-geometry instruments, fold one exact degree-4 vertex in 3D, and sort necessary checks from stronger theorems.

Registration Screen Atelier
Overlay measured ideal line gratings and pull proofs of their geometric moiré spacing.

Curvarium — A Museum of Living Curves
An interactive gallery where mathematics becomes art. Ten living exhibits — roses, Lissajous knots, the golden-angle sunflower, Fourier's square, Ulam's prime spiral and more — each drawn live, each with sliders to bend the math and a Morph tour that animates the whole family of curves. For students, teachers, and anyone who suspects equations might be beautiful.