that+can+be+disturbed

  • 131Inverted pendulum — An inverted pendulum is a pendulum which has its mass above its pivot point. It is often implemented with the pivot point mounted on a cart that can move horizontally and may be called a cart and pole. Whereas a normal pendulum is stable when… …

    Wikipedia

  • 132Invasion biology terminology — The terminology in this page contains definitions for invasion biology terms in common usage today, taken from accessible publications. References for each definition are included. Terminology relates primarily to invasion biology terms with some …

    Wikipedia