Why do mobile signals vanish in lifts? The science behind the 'Faraday Cage' effect

• Lifts act as a 'Faraday Cage' due to their construction from thick stainless steel, which blocks electromagnetic waves.
• Additional layers like tiles, laminate, and wallpaper further reinforce the signal-blocking effect.
• The lift shaft, made of concrete, cement, and iron rebar, absorbs mobile tower signals before they even reach the lift.
• If stuck in a lift with no signal, use the alarm button or intercom instead of relying on your mobile.
• Finish important calls before entering a lift, as signal loss is a technical limitation based on scientific principles.