https://ej-physics.org/index.php/ejphysics/issue/feed European Journal of Applied Physics 2025-01-02T19:42:06+01:00 Editor-in-Chief editor@ej-physics.org Open Journal Systems European Journal of Applied Physics https://ej-physics.org/index.php/ejphysics/article/view/358 ChatGPT on the Patenting in Nuclear Physics 2024-11-14T03:04:52+01:00 Jirí Stávek stavek.jiri@seznam.cz <p><span class="fontstyle0">Question: “If an individual researcher were to discover a completely new road to fusion and fission reactions, should this road be patented or freely shared with other nuclear physicists?” ChatGPT answer: “If I were to discover a revolutionary new road to extract nuclear energy, I would prioritize open collaboration with safeguards to ensure the discovery benefits humanity and accelerates the transition to clean energy. A hybrid approach–combining open licensing with international oversight–would allow for the discovery to be shared, refined, and deployed responsibility. My decision would be driven by the goal of ensuring that this breakthrough serves the greater global good while preventing misuse and ensuring that the energy transition is equitable, safe, and sustainable.”</span> </p> 2024-12-29T00:00:00+01:00 Copyright (c) 2025 Jirí Stávek https://ej-physics.org/index.php/ejphysics/article/view/349 Exploiting a Built-In Simultaneity: Perhaps, the Simplest Way to Show that the One-Way Speed of Light is Measurable in Principle 2024-10-15T17:37:02+02:00 Gianfranco Spavieri gspavieri@gmail.com <p>We consider a physical system composed of a rod of length AB = L rotating uniformly. Two points on the rod cross-sections at A and B are connected in a way that reflects the simultaneity built-in into the system. This preset simultaneity can be exploited to synchronize two distant clocks, one at A and the other at B, with an internal procedure that, in principle, may differ from Einstein synchronization. The natural built-in simultaneity can be used for testing the one-way light speed and Lorentz invariance. PACS: 03.30.+p, 42.25.Bs, 45.50.−j.</p> 2024-11-23T00:00:00+01:00 Copyright (c) 2024 Gianfranco Spavieri https://ej-physics.org/index.php/ejphysics/article/view/346 Fluorescence of Atomic Hydrogen in Aqueous Media 2024-08-14T02:43:50+02:00 Yuri Pivovarenko y.pivovarenko@gmail.com <p>It is shown that aqueous solutions of atomic hydrogen fluoresce under the action of UV irradiation. It is also shown that the spectra of this fluorescence have peaks whose maxima are close to the 5<sup>th</sup> and 6<sup>th</sup> lines of the Balmer series. All this made it possible to propose using this fluorescence to determine the concentration of atomic hydrogen in aqueous media, which seems relevant for both hydrogen energy and medicine. In addition, the possible involvement of this fluorescence in such phenomena as the blueness of the daytime sky, Cherenkov radiation and the Kirlian aura is analyzed here.</p> 2024-09-08T00:00:00+02:00 Copyright (c) 2024 Yuri Pivovarenko https://ej-physics.org/index.php/ejphysics/article/view/344 The Effect of Decreasing Aperture Diameter on Signal Transmission from the Scintillator to the Photomultiplier Tube Over a Wide Energy Range 2024-08-02T01:45:06+02:00 Aleš Jančář ales.jancar@vfnuclear.com Zdeněk Matěj ales.jancar@vfnuclear.com Evžen Losa ales.jancar@vfnuclear.com Michal Košťál ales.jancar@vfnuclear.com Tomáš Czakoj ales.jancar@vfnuclear.com Michal Jelínek ales.jancar@vfnuclear.com Břetislav Mikel ales.jancar@vfnuclear.com Zdeněk Kopecký ales.jancar@vfnuclear.com Filip Mravec ales.jancar@vfnuclear.com Jan Král ales.jancar@vfnuclear.com <p>In this paper, we study the effect of decreasing aperture diameter on signal transmission from the scintillator to the PMT. The apertures have been inserted directly between the scintillator and the photomultiplier. Three different aperture diameters have been used over a wide energy range. A newly developed fast digital spectrometer has been utilized for experimental measurement in the radial channel of the VR-1 research reactor. The detector signals with and without inserted apertures have been measured and evaluated. The aim of our research was to determine the effect of the apertures on the spectral quality, energy range and the evaluated physical quantities.</p> 2024-10-02T00:00:00+02:00 Copyright (c) 2024 Aleš Jančář, Zdeněk Matěj, Evžen Losa, Michal Košťál, Tomáš Czakoj, Michal Jelínek, Břetislav Mikel, Zdeněk Kopecký, Filip Mravec, Jan Král https://ej-physics.org/index.php/ejphysics/article/view/340 On Quantum Operators as Statistical Random Variables Defined on a Spinning Roulette 2024-07-15T09:37:09+02:00 Gregory L. Light glight@providence.edu <p>A quantum operator is a classical physical variable except that it assumes values in a probability distribution, i.e., a random variable, solved by the Schrödinger equation in the form of a wavefunction. To date, the logical foundation of this construct remains an open question. This paper casts the basic components of quantum mechanics in the framework of general statistics. Our starting point is to define the domain of the wavefunction to be the complex unit circle, thus faithfully observing the periodicity of a wave. We seek to crystallize the meanings of the fundamental elements of quantum mechanics, which often are lost in its formalism, by certain common random variables in ordinary applications, such as random walks, inventory cycles, and human healthy temperatures, all defined on the sample space of a unit circle.</p> 2024-08-21T00:00:00+02:00 Copyright (c) 2024 Gregory L. Light