![]() Per saperne di più segui le pagine in italiano dell'Istituto dei Sistemi Complessi. |
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By research in pure science I mean research made without any idea of application to industrial matters but solely with the view of extending our knowledge of the Laws of Nature. I will give just one example of the ‘utility’ of this kind of research, one that has been brought into great prominence by the War - I mean the use of x-rays in surgery. Now, how was this method discovered ? It was not the result of a research in applied science starting to find an improved method of locating bullet wounds. This might have led to improved probes, but we cannot imagine it leading to the discovery of x-rays. No, this method is due to an investigation in pure science, made with the object of discovering what is the nature of Electricity. The experiments which led to this discovery seemed to be as remote from ‘humanistic interest’ - to use a much misappropriated word - as anything that could well be imagined. The apparatus consisted of glass vessels from which the last drops of air had been sucked, and which emitted a weird greenish light when stimulated by formidable looking instruments called induction coils. Near by, perhaps, were great coils of wire and iron built up into electro-magnets. I know well the impression it made on the average spectator, for I have been occupied in experiments of this kind nearly all my life, notwithstanding the advice, given in perfect good faith, by non-scientific visitors to the laboratory, to put that aside and spend my time on something useful. From a speech of Sir J. J. Thomson made on behalf of a delegation from the Conjoint Board of Scientific Studies in 1916 to Lord Crewe, then Lord President of the Council (from "J J Thomson and the Cavendish Laborarory in His Day" by G P Thomson (New York: Doubleday) 1965 pp 167-8) |
Tesi magistrale sperimentale: siamo alla ricerca di studenti che siano interessati a esperimenti sugli spermatozoi (ispirati alla fisica statistica del non-equilibrio) | ![]() |
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![]() ![]() | Fluctuating hydrodynamics and mesoscopic effects of spatial correlations in dissipative systems with conserved momentum [N. J. Phys. 17, 083039 (2015)] Lattice models for granular-like velocity fields: Hydrodynamic limit [J. Stat. Phys. 164, 810 (2016)] Lattice models for granular-like velocity fields: Finite-size effects [J. Stat. Mech. 093203 (2016)] |
![]() | A kinetic model for the finite-time thermodynamics of small heat engines [Phys. Rev. E 91, 032128 (2015)] Linear and nonlinear thermodynamics of a kinetic heat engine with fast transformations [Phys. Rev. E 93, 042116 (2016)] Consistent description of fluctuations requires negative temperatures [J. Stat. Mech. (2015) P12002] Entropy production for macroscopic velocity-dependent forces: the problem of dissipation without fluctuations [Europhys. Lett. 111, 40012 (2015)] |
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I | Attachment | History | Action | Size | Date | Who | Comment |
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download.jpeg | r1 | manage | 1.6 K | 2022-09-20 - 14:53 | AndreaPuglisi | |
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xkcd.jpg | r1 | manage | 38.7 K | 2020-11-11 - 10:35 | AndreaPuglisi |