Wednesday, January 14, 2009

Definitions of heavy metal

Anyone who wants to use the term “heavy metal” for any biological or chemical purpose, should consult this publication in Pure and Applied Chemistry first. It has great collection of useless definitions of this term and a conclusion:
The term “heavy metal” has never been defined by any authoritative body such as IUPAC. Over the 60 years or so in which it has been used in chemistry, it has been given such a wide range of meanings by different authors that it is effectively meaningless.
According to yet another definition (not included in the above paper),
Heavy metal is the 666th element in the periodic table of mixology. Heavy metal is the heaviest of the metals, even heavier than rocks.

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