By V.L. Ginzburg
In approximately technology, Myself and Others, Vitaly Lazarevich Ginzburg, co-recipient of the 2003 Nobel Prize in Physics and Editor of the assessment magazine Physics-Uspekhi, offers an perception into sleek physics, the lives and works of different trendy physicists he has identified, and perception into his personal lifestyles and perspectives on physics and past.
Divided into 3 elements, the booklet begins with a overview of the most important difficulties in modern physics, astrophysics, and cosmology, interpreting their historic improvement and why they pose one of these problem to present day physicists and for society. half One additionally contains information of a few of Professor Ginzburg's paintings, together with superconductivity and superfluidity. half encompasses a number of articles at the lives and works of a number of fashionable physicists, together with the writer. The 3rd half is a suite of articles that offer a private view of the writer, describing his own perspectives and memories on a number wider subject matters.
Taken jointly, this number of articles creates an relaxing overview of physics, its philosophy, and key gamers in its sleek improvement within the twentieth Century. definitely, will probably be an stress-free learn for pro physicists and non-scientists alike.
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Additional info for About Science, Myself and Others
12 The diﬃculty of making the measurements is connected with the necessity of controlling the energy given to the molecules of the surrounding medium. Incidentally, some of the theoretical estimates (see, e. , ) are as follows: mνe ∼ 10−5 eV mνµ ∼ 10−3 eV mντ ∼ 10 eV. 6∗ But the study of oscillations opens such possibilities. It is probably pertinent to clarify the very idea of oscillations. This is the assumption that neutrinos of one ﬂavor or another emitted upon decays or born under weak interactions are not eigenstates of the mass operator.
The observed ﬂux (the ﬁrst results were presented in 1968) makes up several SNU (solar neutrino units): for a ﬂux of 1 SNU, 1036 nuclei of 37 Cl or other nuclei capture one neutrino a second on average. According to calculations for diﬀerent solar models, the ﬂux should be (8–4) SNU (for neutrinos which can be registered by the chlorine detector). I did not try to ﬁnd more precise values now (at least for me, ﬂuxes are clearer in conventional units, i. e. the number of neutrinos reaching the Earth surface per 1 cm2 per second).
In his preceding work, Einstein did not introduce the Λ-term (i. e. formally speaking, he assumed Λ = 0). The physical meaning of the Λ-term (for Λ > 0) is a repulsion which is absent in Newton’s theory of gravity. Since, without the Λ-term, GR in a weak ﬁeld transforms into the Newton theory, a static solution is clearly impossible without the Λ-term. 7). However, after work by Friedmann (1922) and the discovery of the Universe expansion (provisionally in 1929), it became clear that the static model was far from reality and the Λ-term was no longer needed.