(Power line near a railway track in Poland. ) Electricity is the effect of the movement of charged particles inside a conductive material, under the effect of a potential difference at the ends thereof. This physical phenomenon is present in … Read More
(Diagram of a solenoid and its magnetic field lines. The shape of all lines was computed according to the laws of electrodynamics. ) Electromagnetism is the branch of physics that studies the interactions between electrically charged particles, whether at rest … Read More
Rio de Janeiro, the most visited destination in Brazil by foreign tourists for leisure trips, and second place for business travel. Brazil is the largest country in South America, famous for its football tradition, for its beaches and the Carnival … Read More
