Bras bunsen burner, c 1865. The Bunsen burner is a gas burner used in laboratories, consisiting of a vertical metal tube through which a fine jet of fuel gas is directed. Air is drawn in through airholes near the base of the tube and the mixture is ignited and burns at the tube's upper opening. It was invented by the German chemist Robert Wilhelm Bunsen (1811-1899) in 1855.
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