https://insight.piscomed.com/index.php/IP <table> <tbody> <tr> <td style="vertical-align: top;" align="justify"><em>Insight - Physics</em> &nbsp;publishes important advances in various branches in physics,focus on the study of matter, energy, space, time, and in particular their respective properties and interrelationships with each other. Physics is a knowledge of the laws of nature; More broadly, physics explores the phenomena that occur in nature to understand its rules.</td> <td width="150px"> <p><img src="/public/site/images/reviewer/Insight_-_Physics_150.png" alt=""></p> <p>&nbsp;</p> <p>&nbsp; &nbsp; &nbsp;ISSN: &nbsp;2661-3069</p> <p>&nbsp; &nbsp; &nbsp;<img src="/public/site/Open_Access.png" alt="" height="20px"></p> </td> </tr> </tbody> </table> PiscoMed Publishing Pte Ltd en-US Insight - Physics 2661-3069 <p>Authors contributing to the journal agree to publish their articles under the <a href="http://creativecommons.org/licenses/by-nc/4.0">Creative Commons Attribution-Noncommercial 4.0 International License</a>, allowing third parties to share their work (copy, distribute, transmit) and to adapt it, under the condition that the authors are given credit, that the work is not used for commercial purposes, and that in the event of reuse or distribution, the terms of this license are made clear.</p><p><img src="/public/site/by-nc.png" alt="" height="30px" /></p> https://insight.piscomed.com/index.php/IP/article/view/648 <p>One of the most widespread interpretations of mass-energy equivalence establishes that not only can mass be transformed into energy (e.g., through nuclear fission, fusion, or annihilation), but that every type of energy also has mass (via the mass-energy equivalence formula). Here, we show that this is not always the case. With the help of a few thought experiments, we show that, for instance, the electric potential energy of a charged capacitor should not contribute to the capacitor’s gravitational rest mass (while still contributing to its linear momentum). That result is in agreement with the fact that light (ultimately, an electromagnetic phenomenon) has momentum but not rest mass.</p> Germano D’Abramo Copyright (c) 2024 Germano D’Abramo https://creativecommons.org/licenses/by/4.0/ 2024-07-27 2024-07-27 7 1 648 648 10.18282/ip.v7i1.648 https://insight.piscomed.com/index.php/IP/article/view/641 <p>This study investigates the differential cross-section (DCS) of electrons scattered by a hydrogen molecule (H₂) under varying conditions, including temperature, momentum, laser intensity, and polarization. The objective was to understand how these parameters affect electron scattering and to compare the effects of linear and circular polarizations. Methodologically, theoretical model was developed using strong-field nondipole approximation with linear and circular polarized laser fields, examining DCS as a function of thermal electron temperature, momentum, and laser intensity. The study utilized a modified Volkov wave function model to account for thermal electron effects and analyzed DCS variations across different orbitals (<em>n</em> = 1, <em>n</em> = 2, and <em>n</em> = 3). Findings reveal that DCS increases with temperature due to enhanced electron oscillations, with higher orbitals (<em>n</em> = 3) showing greater DCS compared to lower orbitals (<em>n</em> = 1). Increased momentum results in decreased DCS, with higher orbitals exhibiting higher DCS values under circular polarization, contrary to linear polarization. Laser intensity decreases DCS for both polarizations, with circular polarization providing a narrower range of DCS values and generally higher DCS compared to linear polarization. This research further exploration of polarization effects on DCS in different atomic systems and extending studies to higher energy regions for a comprehensive understanding of electron scattering dynamics.</p> Chiranjibi Shrestha Saddam Husain Dhobi Narayan Babu Shrestha Copyright (c) 2024 Chiranjibi Shrestha, Saddam Husain Dhobi, Narayan Babu Shrestha https://creativecommons.org/licenses/by/4.0/ 2024-11-20 2024-11-20 7 1 641 641 10.18282/ip641