Dynastreem
From Tardis Wiki, the free Doctor Who reference
Dynastreem or Dynastream was a material used on Earth in the second half of the 20th century. It was believed indestructible, until the robot K1, built by Professor J. P. Kettlewell, managed to disintegrate a safe made from it. (TV: Robot [+]Loading...["Robot (TV story)"])
When UNIT HQ was put under lockdown by Liz Shaw, the Brigadier noted that there were seven doors of case-hardened Dynastreem between them and the outside world. (AUDIO: The Unzal Incursion [+]Loading...["The Unzal Incursion (audio story)"])
The Genetrix's balloon was made of dynastream. (PROSE: Sunset Over Venus [+]Loading...["Sunset Over Venus (short story)"])