See what wonderful and unique patterns you can make ...
Or you can try the old Flash version
Click the "expert" popup for more options. Each circle has these values:
- radiusAdd +value
- radiusMultiply ×(1+value)
- speedAdd +value
- speedMultiply ×(1+value)
Negative values are allowed.
Here are some examples made by playing with settings such as circle size, speed and line width, color and transparency: