Aluminum foil is commonly used for food packaging, baking, and grilling. Its insulating properties make it ideal for keeping ...

Another pointed out: 'It may increase signal strength in the forward direction - like a weak DIY directional antenna.' Although this might seem odd, research has shown aluminium foil really can ...

Tin Foil Can Help When: You're trying to focus the Wi-Fi signal in one direction (like toward a room with weak signal). You build a simple DIY parabolic reflector behind your router's antennas.