A 30-year practice bridging fluid dynamics, wearable fountains, sustainability, and STEAM education — by Yuki Sugihara / ATELIER OPA
From an immersive 8-metre Water Dome to a medal worn around a child's neck, the same four values have guided 30 years of fountain design.
Water is the world's most urgent shared resource. Designing with water — not against it — cultivates affective connection that no classroom lecture achieves. Future editions: recycled filament & wood CNC.
The water bell (Savart, 1833) remains a poorly understood phenomenon. Sugihara has systematically produced butterfly wings, solar twists, and spiral splashes — discovering a new torsion behavior in laminar sheets.
A 6-year-old and an MIT researcher can play the same Fountain Medal. No electricity, no screen — only tap water, gravity, and surface tension. Age, nationality, and ability become irrelevant.
Science + Technology + Engineering + Art + Mathematics — all present in one object that fits in your palm. The ideal 45-minute classroom tool: make it, measure it, draw it, explain it.
A Japanese instinct: fold flat material into form, then let water complete the sculpture.
The Drinking Fountain · Lexus Design Award 2013 Winner
Cut and bend a transparent plastic sheet into a small nozzle — hold it under a kitchen tap. Instantly, water forms itself into butterfly wings, a spider's web, or a perfect geometric membrane. No pump, no electricity. Just geometry, gravity, and surface tension.
This is 水の折り紙 — Water Origami. The folded sheet controls the flow; the water writes the shape. The same logic that governs origami governs the laminar water bell — a distinctly Japanese way of thinking about water as a medium to be shaped, not simply observed.
"Maximum poetic and impressive effect at minimum cost."
Winner, Lexus Design Award 2013. Cited by MIT MediaLab (HydroMorph, 2014).
Neither Western nor Eastern tradition places the visitor at the centre. Sugihara does.
Jets shoot upward. The fountain asserts civic authority. The crowd watches from outside. Bernini, Versailles, Las Vegas.
Suikinkutsu, shishi-odoshi, karesansui — water falling is impermanence meditated on, not spectacle performed. The self disappears into the sound.
The visitor holds the nozzle, tilts the medal, and makes the butterfly. The fountain exists only in the act of participation. You are the artist.
"水は方円の器に従う — Water takes the shape of its vessel."
The same hydrodynamic phenomenon — a laminar water bell — scales from a city-square dome to a ring on your finger. This scale invariance is the design breakthrough.
The Fountain Medal is a complete STEAM curriculum compressed into a single 3D-printed object. A 45-minute session can move from play to publishable observation.
Surface tension, laminar flow, hydraulic jump, Savart's water bell equation
3D printing, CAD/CFD simulation, parametric nozzle design
Fluid mechanics, pump selection, materials science (recycled filament, silver, wood)
Form follows phenomenon — butterfly, sun, koi — the water film is the canvas
Navier–Stokes, Bézier curves for nozzle geometry, flow velocity measurements
"A 6-year-old makes a butterfly. An MIT researcher models it with Navier–Stokes equations. The same toy, the same wonder."
Production cost for 3D-printed Fountain Medals is already approaching ¥100 per unit at consumer printer prices. Future iterations using recycled or bio-based materials can make this the world's most affordable STEAM tool for water science.
Hold the medal under a tap, tilt it gently, and watch water become art. No electricity. No screen. Just you, water, and gravity.
See the Fountain Medalists →
Every culture has something profound to say about water. The proverbs below — from the countries gathering at NEB — share a remarkable theme: still water runs deep.
A clear mirror, still water — a perfectly calm, undisturbed mind. The highest state of water wisdom.
Still water is deep. Quiet people — and quiet water — carry the greatest depth.
Still water has a deep bottom. Calm on the surface conceals great depth below.
Still water erodes the banks. The quiet force is the lasting one.
Still water turns the millstone. Patient, persistent, unstoppable.
Water flows to the lowest place. Humility, adaptability — the nature of water is the teacher.
The goal: a ¥100 STEAM tool, printed from recycled plastic or CNC-milled from local wood, that gives every child on earth a direct, beautiful, tactile relationship with water.
"People protect what they love. A child who spent an afternoon making butterflies with tap water has formed a relationship with water that no climate lecture can replicate."
Pioneer of water film art. Designer, engineer, and educator.
Since 1994, Yuki Sugihara (ATELIER OPA) has investigated the water bell phenomenon — the thin, laminar, self-organizing membrane produced when flowing water strikes a flat disc. Her work spans immersive architectural installation, fine jewellery, educational toys, and fluid dynamics research.
PhD (2001) for the 8-metre walk-in Water Dome. Lexus Design Award 2013. A'Design Award Silver 2016. Featured at Venice, France, and Los Angeles. Works cited by MIT MediaLab.