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Wed 09 Sep 2007Russia tests huge non-nuclear bombRussia's military has successfully tested what it described as the world's most powerful non-nuclear air-delivered bomb, Russia's state television reported, the latest show of the nation's military muscle amid chilly relations with the United States.The bomb explodes in an intense fireball combined with a devastating blast. It explodes in a nuclear bomb-like  mushroom cloud and creates a massive shockwave.