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 Man's use of charcoal extends back as far as human history itself. It was first used more than 30,000 years ago to make some of the earliest cave paintings. Much later, charcoal played an important role in what might be considered mankind's first technology, the smelting and working of metals. In more recent times, charcoal has remained a technologically important material, primarily as a result of its adsorptive properties. The use of activated charcoal in gas masks during World War I saved many thousands of lives, and today charcoal is used on an enormous scale for the purification of air and water. From a scientific perspective, charcoal is also of great interest since we are beginning to achieve a detailed picture of its atomic structure for the first time. |
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