For decades, the image of a person wearing an aluminium foil hat has been closely linked to conspiracy theories about mind control, government surveillance and secret technologies. Many believers have claimed that a simple layer of aluminium foil can shield the brain from invisible electromagnetic waves and protect people from outside influence.
However, a widely discussed experiment by researchers at the Massachusetts Institute of Technology (MIT) reached a far more surprising conclusion. Rather than blocking all radio signals, the researchers found that aluminium foil helmets could actually strengthen certain radio frequencies under specific conditions.
