(n) German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846), Syn.Friedrich Wilhelm Bessel
(n) an industrial process for making steel using a Bessemer converter to blast air through molten iron and thus burning the excess carbon and impurities; the first successful method of making steel in quantity at low cost
Steel made directly from cast iron, by burning out a portion of the carbon and other impurities that the latter contains, through the agency of a blast of air which is forced through the molten metal; -- so called from Sir Henry Bessemer, an English engineer, the inventor of the process. [ 1913 Webster ]
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