Faraday cages shield their contents from electromagnetic fields. The Ri Demo Team shows us how they work through a couple of experiments sure to spark your interest ⚡ In 2025, we're celebrating the 200th year of the Christmas Lectures, and other landmark moments in science history. Find out more about our #Discover200 year: rigb.org/discover200-ri | Royal Institution of Great Britain

On this day in 1836, Michael Faraday constructed the first Faraday cage ⚡ A Faraday cage shields the interior from external electromagnetic radiation and electrical fields by channelling electricity through the cage, providing constant voltage on all sides of the enclosure. Since the difference in voltage is the measure of electrical potential, no current flows through the interior space of the cage. In our daily lives we are surrounded by this invention. Faraday cages can be found in microwave