1) British invention
Found on
https://www.crosswordclues.com/clue/torpex
Torpex is a secondary explosive 50% more powerful than TNT by mass. Torpex comprises 42% RDX, 40% TNT and 18% powdered aluminium. It was used in the Second World War from late 1942. The name is short for `Torpedo Explosive`, having been originally developed for use in torpedoes. Torpex proved to be particularly useful in underwater munitions bec.....
Found on
http://en.wikipedia.org/wiki/Torpex
(from the article `explosive`) ...ednatol, were used only to a limited extent and for special purposes. Probably the most powerful of all nonatomic military explosives are the cast ...
Found on
http://www.britannica.com/eb/a-z/t/63
No exact match found.
