Bradley's Streamers:

This space curve was produced using the following Maple commands:

> x:=rho*sin(t);
> y:=rho*cos(t);
> z:=sin(Pi*t)/2;
> rho:=sin(t)*(cos(Pi*t))^2;

                           x := rho sin(t)


                           y := rho cos(t)


                          z := 1/2 sin(t Pi)


                                              2
                       rho := sin(t) cos(t Pi)

> with(plots):
> spacecurve([x,y,z],t=0..40*Pi,numpoints=1000,
>   axes=normal,orientation=[45,75]);