This header plots the critical line of the Riemann Zeta Function.  A complete understanding wins a $1,000,000 prize.
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Other applets include Peg7col, Bigermaz, crosswords, point, quad8, tangent, and test.
Here is the Zome Ball.  You can spin it around.

The following image is a Pickover inspired strange attractor.
xn+1 = sin(yn*b) + c*sin(xn*b)
yn+1 = sin(xn*a) + d*sin(yn*a)
xn+2 = sin(yn+1*b) + c*sin(xn+1*b)*(-1)
yn+2 = sin(xn+1*a) + d*sin(yn+1*a)
As you can see, two symmetrical overlapping attractors are produced.  I'll try to modify the code to make this more interactive.  Source code for this image.  A lot of points (a,b,c,d) provide degenerate images.  I haven't figured out why, yet.  Perhaps someone will tell me.  Would you like to see more items like this?  Send opinions.