Time machine

A time machine is a device that allows its user to travel to different points in time.

Devices that could be considered time machines include:


 * Timeships - any ship that has traveled through time, whether or not it was designed for this purpose
 * Temporal conduits
 * Temporal transporters
 * Temporal vortices
 * Time portals (such as the Guardian of Forever)
 * The Orb of Time
 * The time-pod
 * The time travel pod (31st century)