Before diving in the most amazing and interesting DIY project you ever heard of, we should talk a bit about the inventor: Michael Faraday.
Now that we’ve talked a bit about the inventor, let’s spend more time on the invention and see what a faraday cage actually is. For example, thanks to Faraday and his cage we now know how to protect electric appliances from lightning and electrical discharges by letting the extra energy flow on the exterior and keeping the sensible interior mechanisms safe. The car we drive each day is a Faraday cage protecting us from lightning when we have to go through a storm. Microwave ovens are a sort of reversed faraday cages, as they trap the microwave energy inside and use it to cook (or heat) the food.
Telecommunication systems of vital importance are kept safe from electrical charges using faraday cages. Hospitals have their own faraday rooms: the MRI rooms where they need to isolate any external electric disturbances in order to get a clear picture. Important state and business affairs are discussed in faraday rooms where no eavesdropping device works. That’s why Faraday’s invention is so important: electronics will be protected in a faraday cage in case of an electromagnetic pulse. You don’t have to be a rocket scientist in physics in order to make a DIY faraday cage project with your family or friends.
Moisture absorbent to create a safe and moisture free environment for the devices inside the cage. Take the container you are using as the walls of the faraday cage and add a protection layer on the inside. Now, you have your own homemade faraday cage ready to protect your electronic devices from and EMP.


You can’t produce an EMP to test the faraday cage you just built, but there are other ways to see if it really works. If you can still hear the radio and your phone rings while inside the sealed cage, look for holes in the container or in the aluminum foil used to wrap the items. Now that we know how to protect our electronics it’s time to learn a few hacks on how to do the cage with materials at our disposal; for example, how to eliminate the moisture without Desiccant Packs.
You could embed a solar panel in your faraday cage to keep your electronics running even if the power lines are down. In case you didn’t get the chance to make a faraday cage and stash everything you want safe inside, there is an emergency solution: your microwave. If we try and figure it out by name, we have a cage that was built by someone named Faraday, which is pretty accurate. A faraday cage can have holes in its walls as long as they are not too big to let the electromagnetic wave in. Microwave ovens are little faraday cages in reverse, meaning they keep the energy inside to cook the food. No one actually got to test one of these homemade faraday cages against an electromagnetic pulse attack (artificial or natural). We don’t even realize how much we depend on small electronic devices like tablets, laptops, GPS system, radios and others. If you want to learn how to build a faraday cage, stick with us for the following pages and see how easy it is! The cage can take many shapes but the principle is simple: it distributes an electric charge around its exterior, without letting it inside.
It may seem a like a small paranoia crisis, as there were no such attacks but you never know.


If you have your electronics, safe you will be able to communicate with governmental departments (military also uses faraday cages to protect their assets) and get valuable information in time. Now, it’s time to actually learn how to construct a faraday cage using materials you already have in our home.
If you decide to go with the classic rectangular shape that’s just as fine, as long as you know that the shape doesn’t affect the cage’s effectiveness. This should be a simple decision as the material doesn’t influence the cage’s activity (as long as it is capable to conduct electricity). In case something goes wrong the cage could become electrified and it can electrocute anyone touching it. The cushion will be a better protective layer but if you’re not going to bang the cage to the walls, you should be fine with the cardboard box too.
The cage exterior acts like a conductor, allowing the electrical charge to flow through while the inside is protected. Sheets of heavy duty aluminum are the cheapest materials for an efficient DIY faraday cage. If the EMP is coming and you are not prepared, put your small electronics inside the microwave.
If you make more than one faraday cage you should label them so you know what’s inside without opening the cages. The wonderfulness of Faraday’s discovery is that the cage’s interior is also shielded by electromagnetic fields and microwaves.



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