Panzer VIII Maus
Panzerkampfwagen VIII Maus ("Mouse") was a German World War II super-heavy tank completed in late 1944. It is the heaviest fully enclosed armoured fighting vehicle ever built. Five were ordered, but only two hulls and one turret were completed before the testing grounds were captured by advancing Soviet military forces.
History of the oil tanker
The solution was found by filling the cargo tanks with inert gas (IG), reducing the oxygen level such that the tank remains below the explosive limit. The use of IG is seen as the biggest step in increasing tanker safety. Ten years later however, fifty people were killed when the "Betelgeuse" exploded at Whiddy Island in Bantry Bay. The Total tanker was still not fitted with inert gas. The "Energy Concentration" did have this system, preventing an explosion when it broke in two on 21 July 1980 during discharge at Europoort. It has also saved many lives during the Tanker War.