Dust Causes Explosions, And Apparently Nanodust Causes Mega-Explosions -- Popular Science
Along with annoyingly adhering to your TV screen and tabletops, dust can be a deadly material, exploding with enormously destructive force in places like coal mines, sugar refineries and grain silos. The explosive properties of normal dust are pretty well known, but what about non-traditional dust? Not all dusts are created equal — and dust derived from the materials of the future could present a very different type of danger.
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My Comment: One more worry to worry about.