Electromagnetism: electric and magnetic field

L'électromagnétisme : champ électrique et magnétique

IN BRIEF Electromagnetism: study of interactions between charged particles. Electromagnetic field: combination of electric and magnetic fields. An electric field is related to a voltage. A magnetic field arises from moving electric charges. The two fields are inseparable and interact with each other. An electric current generates both an electric field and a magnetic field. … Read more

Recent discoveries on Mars

Recent discoveries on Mars

IN BRIEF The rover Curiosity discovered the presence of sulfates on Mars, indicating an environment conducive to life. Pure sulfur was identified for the first time, enriching our knowledge of the red planet. A study revealed fossilized witnesses of a cyclical climate, similar to that of Earth. Scientists discovered an impressive volcano with a height … Read more