IN BRIEF Uncertainty principle stated by Heisenberg in 1927 Inverse relationship between position and momentum The more the position is known, the less the momentum can be known, and vice versa Observation of a particle modifies its state Impacts on quantum physics and understanding of the universe Engenders reflections in philosophy and psychology Used as … Read more
IN BRIEF Definition of acoustics: science of sound and study of mechanical waves. Acoustic comfort: Importance of reducing noise for well-being. Industrial applications: Use of sound in various sectors, including telecommunications. Acoustic waves: Daily usage such as sonar in boats. Environmental acoustics: Improvement of sound comfort in our living spaces. Physiological acoustics: Relationship between hearing … Read more
IN BRIEF Theory of Everything: quest for unification of fundamental interactions. Bringing together general relativity and quantum mechanics: major challenge of modern physics. History: the search for a unitary theory started by giants like Einstein. Four forces of nature: ultimate goal of physics. Contemporary theories: at the forefront, string theory and unified fields. Philosophical issues: … Read more
IN BRIEF Particle accelerators: essential devices for exploring nuclear physics and particle physics. CERN: houses the largest circular accelerator in the world. Use in various fields: fundamental research and science outreach. Current limitations: high cost, insufficient power, and fragility of existing accelerators. Past and ongoing experiments: exploring elementary particles. Operation: acceleration of particle beams for … Read more
IN BRIEF Types of forces acting on bridges: gravitational, compressive, tensile, etc. Stability of structures essential for safety Symmetrical design for better force distribution Importance of material strength in construction Falls of loads and soil reinforcement to prevent sinking Assessment of allowable deformations and financial costs Dynamics of bridges to ensure resistance to natural and … Read more
IN BRIEF Gravitational singularity: region of spacetime where the laws of physics become vague. Has mathematical boundaries according to Einstein’s theory. References to Penrose and Hawking theorems regarding black holes. Singularities are points where certain physical parameters reach infinity. Veiled singularity implies that physical laws break down. Interest of cosmology in understanding time and space. … Read more
IN BRIEF Essential scientific documentaries on physics. Discovery of 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 … Read more
IN BRIEF Medical Physics: intersection between physics and medicine. Use of ionizing radiation for diagnosis and therapy. Medical Imaging: techniques that transform diagnostics through various modalities. Role of the medical physicist in the development and application of imaging technologies. Ultrasound: use of ultrasound waves for non-invasive imaging. Advances in radiotherapy for the treatment of diseases. … Read more
IN BRIEF Definition of semiconductors: materials with intermediate electrical properties. Types of semiconductors: intrinsic and doped. Applications: found in smartphones, computers, and vehicles. Impact on power electronics: control and conversion of electrical energy. Key role in artificial intelligence: processing speed and energy efficiency. Recent innovations: evolution towards nano-technologies and reduction in energy consumption. Essential for … Read more
IN BRIEF Chimiephysique.free.fr: Free courses and exercises for all levels from middle school to high school. PCCL: Site dedicated to chemistry physics for middle school and high school. Labolycée: Access to a variety of educational resources. Physique-chimie.fr: Content adapted for autonomous learning. Physics 2000: Resources in English to deepen concepts. Éduscol: Information on the use … Read more