IT is sometimes stated that the blue flame which is seen when common salt is thrown on to a coal fire is due to traces of copper in the coal. It is much more likely that this flame is that of ...

FOX31's Ashley Michels reports on an underground coal fire burning more ... a last resort A retro blue VW van miraculously survives deadly Los Angeles fire The richest comedian in the world ...

And, hopefully, a 100-year-old underground fire will breathe its last because the coal will be busted apart and smothered with dirt, reducing the potential for combustion. “It’s really ...

THE blue flame produced by sprinkling salt on a glowing coal fire is a good example of common knowledge, which, not finding a niche and an explanation in text-books, becomes a recurrent topic of ...