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== Physical energy barriers == | == Physical energy barriers == | ||
Physical energy barriers blocked solid matter and could be used defensively as [[force field]]s. A physical energy barrier was used by the [[Silurian]]s to trap the occupants of [[Cwmtaff]] within itself. It was invisible to the naked eye, but could be seen if it was hit, or when excited by the Doctor's | Physical energy barriers blocked solid matter and could be used defensively as [[force field]]s. A physical energy barrier was used by the [[Silurian]]s to trap the occupants of [[Cwmtaff]] within itself. It was invisible to the naked eye, but could be seen if it was hit, or when excited by [[the Doctor's sonic screwdriver]]. The barrier was [[red]] in colour and did not allow people to pass through it. It did, however, allow [[rain]] to pass through. It could also block out [[light]], making it seem as though it was night. ([[TV]]: ''[[The Hungry Earth]]'') | ||
== Holographic energy barriers == | == Holographic energy barriers == |