Antimatter: myth or reality?

L'antimatière : mythe ou réalité ?

IN BRIEF Existence of antimatter: tiny quantities in the universe Particles and antiparticles: fundamental symmetry Question of matter-antimatter imbalance after the Big Bang Absence of antimatter: one of the greatest enigmas of the universe Production of antimatter in the laboratory, notably at CERN Exorbitant cost of antimatter: a precious and rare substance Properties of antimatter: … Read more

Microwaves: operation and impact in the kitchen

Les microondes : fonctionnement et impact dans la cuisine

IN BRIEF Operation: Emits high-frequency electromagnetic waves. Heating: Excites the water molecules in food. Nutrients: Potential reduction of certain vitamins (C, B9). Advantages: Quick cooking and preservation of nutrients. Health: No increased risk of carcinogenic compounds. Myths: Not harmful to health according to several studies. Usage: Convenient for reheating leftovers and prepared dishes. In modern … Read more

Quantum fluctuations and their role in the universe

Les fluctuations quantiques et leur rôle dans l'univers

IN BRIEF Quantum fluctuations: spontaneous energy variations in the quantum vacuum. Influence on the formation of structures in the universe. Elementary particles: rapid emergence and annihilation. Uncertainty principles: impact on quantum theory. Primordial universe: crucial role in cosmic inflation. Quantum vacuums: concepts of fluctuating energy zones. Applications in cosmology and particle physics. Quantum fluctuations represent … Read more

Simple experiments to learn physics at home

Expériences simples pour apprendre la physique à la maison

IN BRIEF Rainbow in a Bottle: Create light with water and oil. Traveling Water: Observe the properties of water through a simple siphon. Disappearing Eggshell: Experiment with vinegar to dissolve an egg. Making an Iceberg: Understand the degradation of ice. Leaking Pepper: Study surface tension with soap. Floating Egg: Learn about the density of liquids. … Read more

Educational games to understand physics

Les jeux éducatifs pour comprendre la physique

IN SHORT Educational games adapted to all school levels More than 12,000 resources available including videos and games Physics toys for children promoting exploration Memory games to learn electricity and chemistry Scientific experiments to be done at home Electronic circuit kits to understand electricity Games that make science fun and fascinating Teaching materials incorporating games … Read more

Maglev trains and the physics of magnetic fields

Les trains maglev et la physique des champs magnétiques

IN BRIEF Maglev trains: transforming rail transport. Operation based on electromagnetic fields to propel and levitate the train. No friction with the tracks, allowing for high speeds. Ability to reach over 600 km/h thanks to modern technology. Advantages: increased safety, optimal comfort, and low maintenance needs. Levitation achieved by electromagnets rather than permanent magnets. Émile … Read more

String theory: an introduction

La théorie des cordes : une introduction

IN BRIEF String theory: fundamental theoretical framework in physics. Fundamental objects are vibrating strings. Elementary particles correspond to the different vibrations of strings. Famous for its ambition to be the “theory of everything”, unifying the forces of nature. Involves 11 dimensions in certain formulations. A necessary popularization to make science accessible. Exploration of local symmetries … Read more

Robotics and the underlying physical principles

La robotique et les principes physiques sousjacents

IN BRIEF Fundamental physical principles of robotics Exploration of simple machines and pneumatics Smart materials for cohabitation with humans Introduction to the concept of digital twin Anthropological challenges related to robot efficiency Interaction between humanoid robotics and social interaction Sensory controls and actuation mechanisms Bio-inspired approach in robotic design Originating from work and laws of … Read more

The role of numerical simulations in modern physics

Le rôle des simulations numériques en physique moderne

IN BRIEF Numerical simulation: Modern method of modeling on a computer. Facilitates understanding and prediction of real phenomena. Reduces physical prototypes, resulting in savings of time and money. Supports the analysis of experimental results. Broker for scenarios impossible to realize physically. Used in materials science and plasma physics. New challenges for simulation tools. Integrates physical … Read more

Physics behind lasers: operation and uses

La physique derrière les lasers : fonctionnement et usages

IN BRIEF Fundamental principle: stimulated emission, discovered by Albert Einstein. Structure: a laser includes a material medium and a pumping system. Light coherence: the produced photons have identical characteristics. Diverse applications: fundamental research, industry, telecommunications, medicine. Beam properties: confinement of the wave by reflecting mirrors. The physics behind lasers constitutes a fascinating and complex field … Read more