The Adaptive Shuttlecock is larger than regular
and it moves more slowly through the air, in fact the
shuttlecock is an unpowered drone.
This is a tennis ball with three long eagle feathers
back of it, and a spring attached to it, that stores
The spring should be weighted correctly, shaped
in an adaptive sprial with the center being tight and a
gradual loosening, and tuned to perfection, in the
research stage, and then permanentized by making the
whole thing out of one material or adaptively fading one
material in the the next, so that the spring would be iron
and the feathers would be something lighter and the iron
can be printed to fade into the other material, so that
there are no articulations.
The spring will store energy imparted to the tennis ball
it is hit by the racket, and distribute the energy
the feathers which will be flapping back and forth at the
same resonance as the spring.