 | 1896 - 644 pages
...eighth of November." " And what was the discovery ? " " I was working with a Crookes tube covered by a shield of black cardboard. A piece of barium platino-cyanide..." What of that ?" "The effect was one which could onlv tion was made with a deeply hidden pur- be produced, in ordinary parlance, by the pose. The rays... | |
 | Ray Eldon Hiebert, Roselyn Hiebert - 1971 - 100 pages
...black paper. Later on he wrote this about his discovery: "I was working with a Crookes' tube covered by a shield of black cardboard. A piece of barium platino-cyanide paper lay on the bench and I noticed a peculiar line across the paper. ... In a few minutes there was no doubt about it, rays... | |
 | Michael T. Ryan, John W. Poston, Sr. - 2006 - 274 pages
...it, Roentgen stated that on the eighth of November 1895 "I was working with a Crookes tube covered by a shield of black cardboard. A piece of barium platinocyanide...and I noticed a peculiar black line across the paper Fig. 12. Two glow transfer tubes (ca. 1960). Fig. 13. Nixie tube (1960's). Which numbers can you make... | |
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I was working with a Crookes tube covered hy a shield of black cardboard. A. piece of barium platino-cyanide paper lay on the bench there. I had been passing a current through the tube, and I noticed a peculiar black line across the paper. 