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(CNN) — In H.G. Wells’ 1897 science fiction novel, “The Invisible Man,” the protagonist invents a serum that makes the cells in his body transparent by controlling how they bend light. More than 100 ...

There are two FDA-approved synthetic dyes for the color yellow: Yellow No. 5 (tartrazine) and Yellow No. 6 (sunset yellow). Both are derived from the organic compounds in petroleum, as are all of the ...

In H.G. Wells’ 1897 science fiction novel, “The Invisible Man,” the protagonist invents a serum that makes the cells in his body transparent by controlling how they bend light. More than 100 years ...