Einstein the Searcher His Work Explained From Dialogues With Einstein
Einstein the Searcher His Work Explained From Dialogues With Einstein
Alexander Moszkowski
The book Einstein the Searcher His Work Explained From Dialogues With Einstein was written by author Alexander Moszkowski Here you can read free online of Einstein the Searcher His Work Explained From Dialogues With Einstein book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Einstein the Searcher His Work Explained From Dialogues With Einstein a good or bad book?
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The metal Gallium was discovered in 1875 by spectroscopic means. Its properties are the mean of those of Aluminium and Indium, and this places it in a position which had already been assigned to it in the periodic table before its discovery ; for, owing to a gap in the system, Mendelejew had asserted its existence five years previously, although he then knew nothing of its characteristic spectral signs, namely, two beautiful violet lines. Radium, too, which was discovered in 1900 and was found ...to have the atomic weight 226, completely satisfied this test and fitted exactly into the place which this number reserved for it in the table. Thus prediction and confirmatory discovery were fully congruent in this case ; the experiment followed on the visionary insight just as a Euclidean proof follows on a mathematical assertion, and we have every reason to say that the system of Mendelejew and Lothar Meyer has stood the crucial test. Future hypotheses will perhaps sup- plement the system or enlarge our knowledge of it, but will certainly not reduce it ad absurdum.
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