Download Essays 1958-1962 on Atomic Physics and Human Knowledge by Niels Bohr PDF

By Niels Bohr

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Essays 1958-1962 on Atomic Physics and Human Knowledge

Used hardcover ebook, no pen/pencil or excessive liner marks. no longer Library booklet! No DJ, conceal express shelf and garage put on. textual content is in Like New situation with out folds or put on, a few colour fading to edges outdoors of textual content quarter.

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Bethe. Although Rutherford just at that time was c o ncentrating on the pre­ paration of his gr eat book, Radioactive Substances and Their Radiations, he nev erthe l es s followed my work with a co nstant interest, which gave me the opp ortunity to learn about the care which he always took in the publications of his p u p ils . After my return to Denmark I was married in mid-summer r 9 r 2 and , on our we dd i ng trip in August to Englan d and Scotland, my wife and I passed thr o ugh Manchester to visit Rutherford and deliver the co mpl et e d manu s crip t of my paper on th e stop ping p robl ems.

Thus, in or dinary electrodynamics, the composition of the radiation an electro n system should be det ermined by the fre­ quencies an d ampl itu de s of the harmonic oscillations into which the motion of the system can be resolved. Of course, no su ch simpl e rela­ tion holds between the Kepl eria n motion of an ele ctron aroun d a h eavy nucleus and the r a diation emitted by transitions between the stat io n ary states of the system. However, in the l i miting case of tra nsiti ons between states for which th e values of th e quantum number n are large comp ar ed with thei r difference, it could be shown that the fr equ en ci es of the components of the radiation , appe a ri ng as the result of the r an dom individual transition processes, coincide as ymp t ot ically with those of the harmonic com po nent s of the electron motion.

In Rutherford's laboratory, I met on that occasion Hevesy and Paneth, who told me of the success of the first systematic investigations by the tracer method of the solubility of lead sulphide and chromate, which at the beginning of that year they had carried out together in Vienna. In every way, these repeated visits to Manchester were a great stimulation and gave me the welcome opportunity to keep abreast of the work in the laboratory. At that time, assisted by Robinson, Rutherford was busily engaged in the analysis of �-ray emission and, in cooperation with Andrade, studied y-ray spectra.

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