Bennet Oscillator
From Tardis Wiki, the free Doctor Who reference
The Bennett oscillator was a device used in spacecraft and space stations.
A space shuttle in 2049 had a prototype version of the Bennett oscillator. (TV: Kill the Moon')
The First Doctor wondered if Bennett was related to the inventor of the Bennett oscillator. (PROSE: The Rescue)
Nerva Beacon was built with a modified version of the Bennett oscillator in the late 29th or early 30th century. (TV: The Ark in Space)