In simple theory, a fifth dimension is a plane of spacetime that’s curved in on itself so tightly, that the entire dimension ...

Two-dimensional experiments in 2018 showed evidence of four-dimensional existence. Electrons moved in two dimensions when influenced by a magnetic field, hinting at how a similar effect would ...

for the first time, their insides). Armed with his new understanding, the square conceives the possibility of a fourth dimension. He even goes so far as to suggest that there may be no limit to ...

The Doctor’s arch foe, the Master, makes his first appearance in this adventure, played by Roger Delgado. It is clear from the start that the Doctor and the Master are fellow Time Lords and know ...