It hit the building far lower than the first plane had, and appeared to make a far bigger explosion.
Security officials told Associated Press the attacker had seemingly hoped to cause a far bigger explosion with his actions, believing the canisters were more combustible than they proved.
On October 5, 1966, the Fermi I fast breeder reactor nearly delivered a far worse explosion.
But the alternative was worse: wait too long, and an explosion would release a far larger burst of radiation.
With its monsters, zombies, axes and explosions – a far cry from Enid Blyton's Famous Five or Louisa M Alcott's Little Women – it was frowned upon by teachers, middle-class parents, politicians, newspapers and churches.
He says: "One of the key effects of the dams raid of May 1943 was that it proved Barnes Wallis's "earthquake" theory - that a big bomb exploding underground, or underwater, had a far larger effect than an explosion on the surface.
The hydrogen explosions that shattered the tops of two reactor buildings at the Fukushima 1 nuclear complex followed the venting of hydrogen and steam by plant operators desperate to prevent a far greater disaster: a high-pressure explosion of the primary reactor containment shell and radioactivity release, a former senior U.S. nuclear official concludes.
Should all other cooling systems fail during an accident, such vents would allow operators to relieve pressure inside a reactor building by exhaling gases into the environment, thereby preventing an explosion and perhaps a far more dangerous dispersal of radioactivity.
In October of that year he was sent to the Somme, only to die six weeks later in a German explosion far below No Man's Land.
So far, the explosion has killed two and injured an estimated 150.
Some long-distance lorry drivers and prospectors, virtually the only people out in that lonely expanse, reported seeing a sudden flash in the sky and hearing or feeling the boom of a mighty but far-off explosion.
