the.com/faraday cage
a metal box that tells electromagnetic waves they're not on the list.
means an enclosure of conductive material that blocks external electric fields by redistributing charge across its surface.
from named after michael faraday, who in 1836 built a room coated in metal foil, zapped it with a powerful electrostatic generator, and walked inside with an electroscope to prove no charge reached him.
doesn't needsolid walls, mesh works fine
everyday examplemicrowave oven door, elevators, car bodies
fails againstmagnetic fields and low-frequency signals mostly
faraday himselfhad no formal math training at all