Spacecraft

[Xiao li]

Imagine a carbon fiber rod ejected sideways from a spacecraft (especially small satellites), controlled by electromagnetic coils or springs for speed and angle, with a micro-motor adjusting direction and dampers reducing vibration, to tweak attitude. Based on momentum and angular momentum conservation, it slightly adjusts velocity and induces rotation—useful for initial despin or rough alignment. Not a full replacement for RCS or gyroscopes, but a low-cost auxiliary option.