It was a real-time animation showing a red-and-white spinning ball (about 1/4 screen size) bouncing up and down and casting a shadow on a wall behind it.

Nobody had any blueprints or diagrams or schematics to follow, so Keller became the hub of a scandalous spinning ball.

A spinning ball will weigh more than a ball that is not spinning.

A spinning ball, right?

A spinning ball rolling on wet grass that kicks up a line or tail of water behind it.

It was a real-time animation showing a red-and-white spinning ball bouncing and casting a shadow.