e quantities of barium salts. other when the plate is inserted. The direction and terminals B are so adjusted that the sparks just miss Prof. Rutherford and Mr. Soddy made the import- character of the potential of each gap are apparently fire, while the sparks of the micrometer are allowed ant… … of phosphorescence could be seen in any part of the and permeated with metallic vapor, all tending to in- Fig. 2. apparatus, unless from the pieces of radium bromide. crease its conductivity, and cleaves for itself a new The fine capillary tube was now immersed in liquid path apparently offering a…
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![An illustration from Cosmographia Francisci Mavrolyci Messanensis Sicvli : in tres dialogos distincta, in quibus de forma, situ numerʹoq[ue] tam coelorum q[uam] elementorum, alijsq[ue] rebus ad astronomica rudimenta spectantibus satis disseritur (1543)](https://img.insideoutlibrary.com/img/200/ia-cosmographiafran00maur-177-0.webp)
