The fireside university of modern invention, discovery, industry and art for home circle study and entertainment . onium were found in 1899, in the spectroscope. The lineat has been named Aurorium. Nebulum is an element betrayed by its two lines and at In October, 1899, Professor Crookes discovered Actinium. Coronium, Aurorium and Nebulum are elements that approach to the ether, and willlead to a closer study of the present molecular theory. Theprogress of discovery in these early years of the first decade of the twentieth cen-tury was hastened by spectroscopic analysi
The fireside university of modern invention, discovery, industry and art for home circle study and entertainment . onium were found in 1899, in the spectroscope. The lineat has been named Aurorium. Nebulum is an element betrayed by its two lines and at In October, 1899, Professor Crookes discovered Actinium. Coronium, Aurorium and Nebulum are elements that approach to the ether, and willlead to a closer study of the present molecular theory. Theprogress of discovery in these early years of the first decade of the twentieth cen-tury was hastened by spectroscopic analysis of those features of Light or Radiation whichdo not appear in the visible spectrum, but rather in its infra-red and ultra-violet ends. M. Sagnec, of Paris, demonstrated that, when X rays can be deflected, they becomeS rays. When X ravs pass through perforated metal plates, they become Goldstein rays. The name of Becquerel rays is applied generally to the invisible radiations of certainelements. Prince Krapotkin suggests that this radiation is a characteristic of all matter,lee table of Elements on page Fig. 79. PROF. LIEBIG IN HIS LABORATORY.
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