Cyclorama: A Mobile Architecture Spectacle

A bicycle. A gear train. A tub of soap solution. A revolving wand. That is the entire parts list. Cyclorama, designed by Namira Budhwani, is a lightweight device that clips onto a bicycle and, when the rider pedals, produces a continuous stream of giant soap bubbles that trail behind through the street. No motor. No battery. No electricity. The spectacle runs on legs.

Shortlisted in the Madrid Art Bioscope competition on uni.xyz, Cyclorama treats the bicycle as a performance platform. The competition asked entrants to design a mobile art device for Madrid's streets. Most entries proposed screens, projectors, or speakers. Cyclorama proposed soap. The simplicity is the argument.

The Mechanism: How Pedalling Makes Bubbles

The mechanism diagram is the project's key drawing. Every component is labelled, from the bicycle-mounted frame at the top to the revolving bubble wand at the bottom. The pedalling motion drives a reducing gear train, which slows the rotation to a speed that produces large, stable bubbles rather than a fast spray. An actuating armature dips a wand into a liquid dispenser. The wand rises, catches air, and releases a bubble. The cycle repeats with every revolution.

This level of mechanical specificity is rare in an art competition entry. Most conceptual projects stop at the render. Cyclorama draws the gear ratios, the wand geometry, and the reservoir position. The project is buildable from the diagram alone, with standard bicycle parts and a hardware-store wand. That buildability is the design's strongest claim: anyone with a bike and a toolbox can produce the spectacle.

The Device: Fold It, Carry It, Ride It

The use-case collage shows the three states of the device. Folded, it is a compact package a pedestrian can carry in one hand, small enough to fit into a bag or strap to a backpack. Unfolded and mounted, it clips to the rear of any standard bicycle. In motion, it trails a cloud of bubbles. A parent and child ride together on a tandem with the device producing bubbles behind them. A woman rides solo through a street.

The folding matters because it makes the project truly mobile. A device that only works mounted on a bike is limited to the ride. A device that folds into a carry-on is a performance you can take on the metro, check at a hotel, or ship to a festival. Cyclorama is designed to travel the way a street musician's guitar travels: always with you, ready to perform in any city.

The Street: Perform Anywhere

The Madrid street scene is the project's proof of concept. A cyclist rides down a narrow lane in what appears to be the Malasaña or Lavapiés quarter. Overhead, a cloud of iridescent soap bubbles drifts above the buildings. Pedestrians look up. The tagline at the bottom reads PERFORM ANYWHERE. The image is a photomontage, but the claim is real: the device works on any street wide enough for a bicycle, and the audience is anyone who happens to be there.

This is the project's most important insight. Public art usually requires a venue: a gallery, a plaza, a stage, a permit. Cyclorama requires a bicycle lane. The performance starts when you start pedalling and ends when you stop. The audience gathers spontaneously, drawn by the visual of hundreds of soap bubbles drifting above a city street. No ticket, no schedule, no curator. Just soap and motion.

The Spectacle: A Guitar Inside a Bubble

The spectacle collage is the project's most joyful image. A guitarist is shown suspended inside a giant soap bubble above the Cyclorama bicycle, playing to a cheering crowd. A child runs through smaller bubbles in the foreground. The image is deliberately surreal, part physics, part circus, part street art. It communicates what the experience feels like rather than what it literally is. The bubble is not really large enough to hold a guitarist. But the emotion of seeing hundreds of bubbles released into a city plaza is real, and this collage captures it.

The crowd in the background is the real subject. Cyclorama is not designed for the rider. It is designed for the people who see the rider pass. The project turns every street into a potential audience and every cyclist into a potential performer. That inversion, where the spectator is unplanned and the performer is moving, is what makes the project an art piece rather than a toy.

Why This Project Matters

The Madrid Art Bioscope competition asked for mobile art devices. Cyclorama answered with the simplest possible machine: a gear, a wand, and a soap reservoir mounted on a bicycle. The elegance is in the reduction. No electronics. No screens. No sound system. Just human power and the physics of soap film. The result is a spectacle that can be fabricated at home, carried on public transport, and performed on any street in any city.

For anyone studying mobile architecture, human-powered devices, or the design of public spectacle, Cyclorama is a useful reference. It proves that the most effective public art does not need a budget or a building. It needs a mechanism, a material, and a street. The rest is physics and delight.

View the Full Project

About the Designer

Designer: Namira Budhwani

Enter a Design Competition on uni.xyz

If mobile art, human-powered devices, or public performance architecture is the kind of work you want to explore, uni.xyz runs competitions year-round that reward proposals where the invention is as compelling as the drawing.

Project credits: Cyclorama by Namira Budhwani. Shortlisted, Madrid Art Bioscope (uni.xyz).