How to Make a Faraday Cage

 How to Make a Faraday Cage

The Faraday was first demonstrated by Michael Faraday in which it was shown that a hollow conducting shell shields the area inside from external electric fields. We know these shells today as Faraday cages. They can be made to any size or shape, from any conducting material and have many practical applications.

A Faraday cage is a container that has been made of a conducting material such as wire mesh, that shields what it inside the container from external electric fields.

There are ready-made Faraday cages available but this post is going to share how you can make your very own at a fraction of the cost.

It seems to be common belief that a refrigerator or a freezer can be used as a Faraday cage. This could work but would only do so if the seal is really tight. Another appliance that won’t work in this situation is a microwave.

I am sure our readers know about the tinfoil hat joke that often gets thrown our way and it actually comes from the Faraday cage. Aluminum foil can be used to protect against electromagnetic fields. Shoplifters use this to their advantage by coating the inside of bags to prevent detection.

Trash Can Faraday Cage

You can test out your newly made Faraday cage by placing a small radio inside and switching it on. If the radio stops then it has worked. Also try placing a mobile phone inside and seeing if you can call that phone, you shouldn’t be able to.

Whilst writing this post I came across an article over at that shows you how to make 10 different styles of Faraday cages. Check out their link below:

Why not learn How to Make a Swedish Torch next?

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