The Fifth Doctor, when using the Ionograph to detect the ion trail of a spaceship or spacepod, likened this trail to that of an eddy, and indeed dubbed their iono-trail a "space eddy". (AUDIO: Hexagora)
The Fifth Doctor, when using the Ionograph to detect the ion trail of a spaceship or spacepod, likened this trail to that of an eddy, and indeed dubbed their iono-trail a "space eddy". (AUDIO: Hexagora)