Helium Which Means
His letter of congratulations to Ramsay gives an exciting case of discovery, and near-discovery, in science. As one of the noble gases, Helium was chosen by the Instrumentation Center. The display box attributes a discharge tube in the shape of the element’s symbol. The tube is filled with Helium and powered by a transformer. When an electric charge excites the Helium gas in the tube, the Helium emits a pale yellow glow. It is also applied to condense hydrogen and…