"Teleportation device"@en . . . . . . . . . "Doomsday"@en . "This new version, unlike the original, was handheld and could travel to different parts in space, but needed to recharge for thirty minutes after each use. The dimension cannon could also measure timelines. Mickey and Jackie also used it to help save Sarah Jane Smith from a pair of Daleks following their invasion of Earth. Following the invasion and Davros being prevented from using the reality bomb in the Doctor's universe, the walls of the universe eventually started closing themselves, a process that the DoctorDonna called a dimensional retroclosure. (TV: Journey's End)"@en . "Dimension cannon"@en . . "This new version, unlike the original, was handheld and could travel to different parts in space, but needed to recharge for thirty minutes after each use. The dimension cannon could also measure timelines. Mickey and Jackie also used it to help save Sarah Jane Smith from a pair of Daleks following their invasion of Earth. Following the invasion and Davros being prevented from using the reality bomb in the Doctor's universe, the walls of the universe eventually started closing themselves, a process that the DoctorDonna called a dimensional retroclosure. (TV: Journey's End)"@en . "Dimension cannon"@en . .