A Faraday cage, also known as a Faraday bag, is a protective shield designed to block electromagnetic waves, such as Wi-Fi or radio signals, from getting through. This is done by using conductive materials like metal to create a barrier that prevents the signals from entering or exiting. The term “Faraday” comes from Michael Faraday, a 19th-century scientist who discovered how to shield areas from electric fields by creating a conductive enclosure. His work led to the development of this protect

From microwave ovens to MRI scanners, Faraday cages have a myriad of uses in today's world. On 15 January 1836, Michael Faraday built the first one right here in the Ri theatre.⚡ To mark the occasion, Harvard University's David Ricketts and our Demo team got together to show how it works. | Royal Institution of Great Britain