📡 Here’s Why You Should Place Aluminum Foil Behind Your Router

Is your Wi-Fi connection slow or unstable in certain rooms of your home? Before investing in expensive equipment, there’s a simple, low-cost, and surprisingly effective trick: placing aluminum foil behind your router.

This technique is based on basic principles of radio wave physics and has been confirmed by researchers at Dartmouth College, a well-known American university.

🔍 How Does This Trick Work?

Aluminum foil acts as a Wi-Fi signal reflector. By placing a curved piece of foil behind your router, you redirect the waves in a desired direction instead of letting them scatter in all directions, including into walls or unused spaces.

📚 What Science Says

In 2017, a team of researchers at Dartmouth College conducted a study demonstrating that 3D-printed reflectors covered with aluminum foil could improve the range and direction of Wi-Fi signals.

🔗 Source: Dartmouth College Research

The results showed that by properly placing a metallic reflector behind a router, you could:

  • Enhance the range of the Wi-Fi signal.
  • Reduce dead zones in the house.
  • Protect certain areas from interference.

🛠️ How to Do It at Home

Materials:

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