PROF. RUNGE, in your last issue, points out that the wave length of the bright green line of krypton is 5570˙4 (Rowland's scale), while that of the auroral line is about 5571. In the paper presented ...
__1898: __Two British researchers discover the element krypton. It's real, but it would inspire fantastic fiction. William Ramsay, a Scot, and his student Morris Travers, an Englishman, were searching ...
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