Movies of Math Horizon

The "Math Horizon" image shows the projection of a sphere in four-space that has a single point of self-intersection at the center of the image. Bands on the surface are removed to help see the structure of the projection. Here, the image is being rotated in three-space around a vertical axis.

• MPEG version (692K)
• QuickTime version (945K)
• Animated GIF (1008K)

The "Math Horizon" image shows the projection of a sphere in four-space that has a single point of self-intersection at the center of the image. Bands on the surface are removed to help see the structure of the projection. Here, the image is being rotated in three-space around a horizontal axis.

• MPEG version (1.2M)
• QuickTime version (1.9M)
• Animated GIF (2.1M)