The phenakistoscope: how little gaps made pictures move

A colorful paper disc from around 1840 reveals an animation secret: the pictures needed interruptions to come alive.

At rest, it could pass for an unusually lively plate design: circles around the rim, a pointed blue star in the center, and cheerful flashes of red and yellow. Then the rectangles cut through its edge give the game away. This is an image with missing pieces, and those missing pieces are essential.

The object is a phenakistoscope disc, a nineteenth-century optical toy. Cooper Hewitt’s example dates to about 1840 and is catalogued by the Smithsonian with Josef Bermann as its designer. It is a hand-colored lithograph on paperboard, made in Vienna. The materials are modest. The effect they were arranged to produce was not.

You looked at it from the wrong side

To use this kind of disc, a viewer mounted it on a spindle, faced the illustrated side toward a mirror, and spun it. The viewer looked through the slots from the back, watching the images reflected in the mirror. That apparently inconvenient arrangement made the mechanism work.

Each slot allowed a brief glimpse, followed by an interruption as the solid card passed in front of the eye. Instead of watching a continuous smear of turning pictures, the viewer received a succession of separated views. The slightly different drawings could then be perceived as stages of one movement. The holes were doing a job comparable to separating the pages of a flipbook into distinct moments.

The disc shown here has ten rectangular openings. In the outer ring, black circles change their position against red-and-white circles. Nearer the center, yellow and black circles accompany the layered star. The Smithsonian describes the resulting designs as moving geometric relationships rather than a story with characters. Before a screen, a soundtrack, or a camera, there could be the pleasure of watching a shape change.

Follow one mark around the circle

The still image lets you inspect something the moving illusion would conceal. Choose one black circle on the outside and compare it with its neighbors. Each arrangement is nearly familiar but not quite identical. The repetition gives the sequence stability; the small differences supply its event.

The red-and-white divisions are especially helpful. They give the eye a clear orientation to track. A perfectly plain circle can turn without showing much evidence of rotation. Divide it into contrasting sections and a change of angle becomes visible. Here, color is doing practical work as well as making the toy attractive.

There is also more than one place to look. The outer and inner patterns share the same disc, but they offer separate visual activities. Cooper Hewitt notes that some discs combined several animations, turning a single spinning object into a choice of small spectacles. Watching could be active: shift your attention and discover another loop.

Today, a digital animation normally hides its construction. The finished sequence plays, while the individual frames remain backstage. This disc puts the entire sequence on display at once. You can see the mechanism, count its stages, and still understand why its transformation would delight a viewer.

Its loveliest contradiction is simple. To make a picture seem continuous, the designer had to interrupt the view. The blank interval was part of the drawing.

Try it: Plan a loop on paper

Draw eight small boxes. In each, move a dot a little farther around the edge of a square, returning close to the starting position in the last box. Read the sequence slowly. Where does it need a smaller step? No spinning or flashing display is needed.

Artwork & sources

Phenakistoscope Disc with Geometric Shapes
Josef Bermann, designer (Smithsonian attribution) · ca. 1840
Hand-colored lithograph on paperboard
Cooper Hewitt, Smithsonian Design Museum. Museum purchase through gift of Mrs. John Innes Kane, 1948-124-4.

• Smithsonian: the geometric optical disc
• Cooper Hewitt: Optical Amusements
• Wikimedia Commons: collection photograph and original museum image link

Image: CC0; Smithsonian Open Access. Image-use terms.

Historical information is drawn from the linked collection and research records. Visual readings and creative prompts are original Storied Spark contributions. Storied Spark is independent and is not affiliated with the museums.