To download a screensaver of balls, hoops, and other objects spinning in space, click the appropriate image. Once it is downloaded, simply unzip the file and click on it to run. In Windows, it will install automatically and your screensaver settings will appear so you can adjust the preferences.

Windows

Mac

The video below shows a part of one screensaver. I should be adding to/changing the screensaver fairly frequently, so check back for updates. Or just follow me on twitter.