IN SHORT Gravitational singularity: region of spacetime where the laws of physics become imprecise. Contains mathematical limits according to the theory of Einstein. References to Penrose and Hawking theorems regarding black holes. Singularities are points where certain physical parameters reach infinity. The naked singularity implies that the physical laws break down. Interest of cosmology to … Read more
IN BRIEF Essential scientific documentaries on physics. Exploring the universe through captivating films. Diverse themes: from quantum to elementary particles. Best platforms to watch: Netflix, YouTube, and others. Recent films: Oppenheimer, The James Webb Telescope. Series to follow for cultural enrichment: Rick and Morty, The Big Bang Theory. Impact of science on our daily lives … Read more
IN BRIEF Chimiephysique.free.fr: Free courses and exercises for all levels from middle school to high school. PCCL: Site dedicated to physics and chemistry for middle and high school. Labolycée: Access to a variety of educational resources. Physique-chimie.fr: Content tailored for self-directed learning. Physics 2000: English resources to deepen understanding of concepts. Éduscol: Information on the … Read more
IN BRIEF Multiverse: Concept of multiple coexisting universes. Hypotheses: Emerging from theoretical physics, notably string theory. Parallel dimensions: Possibility of dimensions beyond our classical understanding. Cosmic inflation: Rapid expansion of the early universe suggesting other universes. Evidence: Difficulty in testing the multiverse hypothesis. Scientific speculations: Variety of possible scenarios surrounding the multiverse. Time travel: Connection … Read more
IN BRIEF Natural phenomenon of electrostatic discharge. Occurs during thunderstorms in clouds called cumulonimbus. Accumulation of electric charges causing enormous voltages. Occurs between clouds or between a cloud and the ground. Can reach temperatures of 30,000 °C. The speed of the discharge can exceed 200,000 km/h. Lightning is a common natural electric arc. Potential impacts … Read more
IN BRIEF Nature of light: form of visible electromagnetic energy. Visible spectrum: red (longest wavelength) to violet (shortest wavelength). White light: polychromatic, containing different radiations. Propagation: movement of energy without transportation of matter. Physical phenomenon: behaviors of waves and particles. Thermal exchanges: objects emit according to their temperature. Light is a fascinating phenomenon that plays … Read more
IN BRIEF Scientific culture: Appropriation of fundamental knowledge. Circulation of knowledge: Exchanges between disciplines and experimental practices. Future developments: Reasoning and innovation for the next 50 years. Mental training: Importance of physics in critical reasoning. Fluid science: Understanding natural phenomena and environmental issues. Interdisciplinarity: Role of physics in other disciplines and fields of study. Digital … Read more
IN BRIEF Sensors present in smartphones: accelerometers, magnetometers, gyroscopes, etc. Use of physical laws to measure speed, acceleration, and other parameters. Smartphones as mini-laboratories for scientific experiments. Application of quantum physics in smartphone technology. Impact of mobile technology on our understanding of physical phenomena. Possibility of scientific outreach through educational applications. Smartphones, these ubiquitous devices … Read more
IN BRIEF Holographic principle: central concept in theoretical physics. Suggests that the information of a system can be represented on its surface rather than within its volume. Related to the study of black holes and their event horizon. Indicates a relationship between gravity and quantum. Suggests that our universe could be similar to a hologram. … Read more
IN SHORT Definition: State of a material at very low temperature capable of conducting an electric current without resistance. Meissner effect: Expulsion of magnetic fields when transitioning to the superconducting state. Applications: Lossless electricity transmission, magnetic levitation, magnetic resonance imaging. Fascinating properties: Indefinite circulation of a current in a superconducting ring. Challenges: Understanding the mechanisms … Read more