DNA Spiral.

Try it.

Start the animation to watch the red and green strands build up. Pause to look closer, or reset the drawing.

Animation follows the site’s Motion control. You can pause the drawing at any time.

From the original sketch.

Two colours turn around each other, leaving a memory of each movement. The strands suggest a double helix, but this is a study in rhythm and repetition: simple gestures weaving a shape that feels alive.