Electrons moved in two dimensions when influenced by a magnetic field, hinting at how a similar effect would occur in the fourth dimension.

The Ice Warriors make their fourth appearance in Doctor Who before ... a first for the aliens from the Red Planet. The Monster of Peladon sees the Doctor visiting the planet Peladon fifty years ...

When the fourth dimension is finally seen ... Read more: The 50 Scariest Horror Movie Monsters Ranked Matheson was a prolific "Twilight Zone" writer, also responsible for other classic episodes ...

The Time Monster presents the mind bending idea of the Doctor’s TARDIS and the Master’s TARDIS being inside each other at the same time. This concept was repeated in the Fourth Doctor’s ...