HIS NAME LIVES ON
Sir John McLennan, the Scots Canadian man of science, has left a name behind him which will always be linked with two of the outstanding achievements of twentieth-century science, the collection of helium and its application to the production of low temperatures. At the beginning of the century samples of helium gas had only lately been shown in tubes by Sir William Ramsay. McLennan was able to separate it from the natural gas which escapes in Canada, collect it in sufficient quantity to fill airships, and so avoid the risk of ex- , plosion when hydrogen is used. • _
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Bibliographic details
Evening Post, Volume CXX, Issue 144, 14 December 1935, Page 12
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101HIS NAME LIVES ON Evening Post, Volume CXX, Issue 144, 14 December 1935, Page 12
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