Quantum Foam Manipulators
Every time a TARDIS materializes microscopic elements (such as bacteria) from each destination will become embedded in its exo-shell. While the External Decontamination Function (EDF) can be used to sterilize the exterior of the shell leaving it appearing pristine and clean it doesn't affect those molecular or atomic spatial elements that have become embedded inside the shell. While this contamination does not weaken the Shell, it does create a time thickening effect on the underlying cosmological quantum foam structures of space. In most cases the effect of this thickening on a time zone is minimal - usually resulting in nothing more then a slight change to the fashions by the natives. However, the slight gravitational change can be measured and used to detect the materialization coordinates of a TARDIS. During the Time War both the Time Lords and their enemies used this to detect the appearance of each other's timeships.
While the Daleks were manipulated into developing Zero Time to cleanse each DARDIS before materialization the Time Lords installed Quantum Foam Manipulators on their TARDISes. Six of these were installed in a TARDIS Console at the joins between each panel. They could manipulate the cosmological foam to cancel out the time thickening, allowing the timeship to arrive undetected.
The following color code is used:
- Black: For information from the TV Series, including Dimensions in Time, and 1996 TV Movie.
- Blue: For information from the Novels and Audios including Target, Virgin, BCC, and Big Finish.
- Green: For information from 'licensed' reference sources such as the Technical Manual, Doctor Who Magazine, and the Role Playing Games.
- Red: For information from unofficial sources -The Faction Paradox series, behind the scenes interviews, author's speculation, and popular fan belief.
The TARDIS Technical Index is copyright Will B Swift.