By Kellene Bishop

If you’re a regular reader of this blog, then you have figured out by now that I’m not one of the gloom and doomers. In fact, I try diligently to simply take a situation, examine it, and try to determine how I can best avoid an undesirable consequence and vulnerability to it simply by being better prepared. If I’ve said it once, I’ve said it a hundred times, “preparedness is about peace, not panic.”

I still stand by that belief and I’d like you to remember that as I direct you towards an interesting article I read today.  True to the typical brainless “preppers” hype  the article was posted on someone else’s “emergency preparedness” site as an incentive for everyone to dig nuclear bomb shelters or create full-sized Faraday cages “asap”. But when I read the article I felt that it simply gave us a nice, gentle reminder that we are indeed vulnerable to a loss of the electrical or computerized power which keeps our nation civilized.  On April 20, 2010, the Sacramento Press reported that the CIA Director conveyed the reality of our vulnerability to international hacker terrorists and admitted that it’s a full-time job preventing them from collapsing our nation financially, physically, and throwing our society back to the early 1900’s.  (See full article here: http://www.sacramentopress.com/headline/25185/CIA_Director_tells_CaptoCap_delegates_Cyber_attack_could_be_next_Pearl_Harbor)

For those of you who have not participated in my “Lights Out, Now What?” webinar, I want to remind everyone that there’s a speedy and unavoidable domino effect when and if our financial or electrical system is interrupted.  Because our financial doings are so heavily reliant on all of our modes of communication—to the point that even a mere hour without electricity can cost our economy billions of dollars—if our communication lines are downed for more than 72 hours nationally, it would cause a financial collapse. If a financial collapse occurs, then a national blackout is a natural consequence which will follow quickly on the heels of such a disaster.  If a significant power outage occurs in just one regional grid in the U.S. then that will also cause a financial collapse. A cluster of hard copy research which I read last year suggested the due to the present regional power grids not being strong enough to carry their respective areas on their own, rather are intended to carry the weight as a nationally collective whole, then if our entire nation were to go black at the same time, the task of bringing everything back online is estimated to take a mere 36 months. Apparently no single grid on its own can handle the weight of supporting the surrounding grids long enough to power up the next ones.  (Remember the blackouts that occurred throughout the Western States a couple of years ago simply because a part of the California grid wasn’t functioning well?) With over 250,000 trucking companies in the U.S. and the fact that our economic system relies heavily on such systems, then it is also intimated that if our fuel costs were to exceed $4.00 a gallon, at least 17 % of the trucking companies would have to shut down. Very few transportation companies have the capital to take such a cost increase in a “must have” category of running their businesses.  (Apparently even the trucking companies run their business with a thin margin of profit just like our very own households have done for decades.) Keep in mind that the airlines just got hit with billions of dollars of losses from the recent “volcano black out”—this after they had already opted for the cannibalization pricing practice of taxing their customers for essentials such as luggage, in-flight entertainment, 1 ounce of padding known as a pillow, and 2 ounces of mysteriously colored air known as a blanket. Imagine what even a short-term power outage could do to that industry, especially if it is coupled with a sharp increase in fuel costs.

 So, once again, don’t panic.  Instead, calmly determine how you are able to insulate yourself now from as little vulnerability as possible.  How can you make yourself more independent when it comes to providing environmental control, security, cooking, heat, light, medical aid, and necessary commerce transactions in your life? To answer that, look at what has been done in past history when the luxury of electricity and the internet was not so abundant. Look at what some third world and even European countries do today in order to mitigate the high cost of fuel and sporadic accessibility to power.  Solar power, alternative fuels, butane stoves, pressure cookers, kerosene lanterns. These items aren’t “emergency preparedness” tools for many areas of the world. These are tools of wisdom used in everyday living for real people like you and me. So, take a moment to review the posted article. Ask yourself how you may be vulnerable to the “what ifs” and then determine what you can do today with the control and freedom that you now have to alter those vulnerabilities into strengths of independence.

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Faraday Cages

By Kellene Bishop

Faraday Cage c/o jeddaniels.com

We’ve established that an EMP incident will fry all electronics.  This occurs whether or not they are plugged in or turned on. This also affects automobiles, batteries, computers, medical equipment, etc.  Needless to say, in such an instance, life as we know it will change dramatically.   Even more distressing is the fact that the strike of an EMP is not likely to give any warning. You don’t see it. You don’t feel it. You are simply left with the sudden consequences and whatever preparedness you have on hand.  So, other than your preparedness supplies, your new best friend may be a Faraday cage. In fact, with the knowledge of the protection that a Faraday cage can provide you, you may be able to enjoy nearly as comfortable a lifestyle as you did prior to any electromagnetic pulse.

While being mentally prepared to live in the Stone Age may be helpful, it’s not necessary. Aren’t you glad?

First of all, allow me to dispel some myths about Faraday cages—and boy, howdy, there are a LOT of them.

• Whether or not your electronics are plugged in, how long of an antenna you’ve got on something, what voltage it is, or whether or not they operate with batteries—all non-protected electronics will be affected by an EMP. 
• Batteries will be affected, usually in the form of “shorting” as well.
• Electronic phone systems will also be damaged. 
• Surge protectors are useless in the event of an EMP exposure. 
• Just because your car has rubber tires, it will not be impervious to the effects of an EMP.  Rubber containers are insufficient protection against an EMP.
• And oh yeah—yes, your Faraday cages DO need to be grounded.  If it’s NOT grounded, then the Faraday cage merely becomes a reflector or an amplifier.
• Yes, a microwave can act as a Faraday cage, but why in the world would you want to use it for that?  That’s just silly when you can make one simply.
• Faraday cages do not have to be solid, thus the name “cage” instead of the oft misused term—“box.”  In fact, many of them that you can build yourself or will see on the internet will resemble a bird cage or a very finely meshed chicken coop wire. 
  

  Copper Mesh photo c/o twpinc.com

• Also, contrary to what you may see on the internet, a sheet of foil on a box will not protect you.  It’s not thick enough to withstand the pulse. However, you CAN protect your items if they are buried a couple of feet underground in every direction (up and sideways.)
• Last, but not least, a car is NOT a Faraday cage sufficient to withstand an EMP incident. It has some similar components, yes.  Most cars made today consist of fiberglass and disjointed parts, not a continuous metal material.  In addition to that, they are on tires.  Tires on a car do NOT serve as grounding.  Folks are simply getting an EMP strike confused with a lightening strike.  Now, IF you had an old fashioned car that was made of metal, that had its tires removed, that was also attached to an Iron or copper pole and that was ALSO on dirt—not  gravel—then  yes, you may have a car that doubles as a Faraday cage. (Kind of like the old clunker my dad has out in his “back forty.”  
• The cages do not have to be solid, but they do have to be constructed continuously without gaps between the protective material.

There. Now that we’ve discredited 90% of the internet information out there, let’s continue.

Michael Farady oil, by Thomas Phillips. photo c/o commons.wikimedia.org

Faraday cages are named after Michael Faraday who invented them in 1836. They block out external electrostatic fields and electromagnetic radiation.  One mistake many people make when it comes to an EMP is to compare it to a lighting bolt.  The effects of an EMP and a direct lightening bolt are very similar, but they are not at all similar in terms of their visibility, and affect on the body. An EMP is more like a radio wave, not a visible bolt of light or electric current.   

It’s the substrate layers of the diodes and transistors that make them susceptible to a magnetic pulse attack. Electronics are made up of diodes and transistors and substrate layers. A computer, car, television, and cell phones are made up of tons of transistors. When hit with a powerful magnetic pulse, the substrate layers are destroyed. However, early 1960’s and before electronics did not use substrate layers. They used vacuum tubes.  This is why older electronics are less susceptible to damage. This is why a human or animal body will not be affected.  Yes, our bodies consist of an electric volt. But understand there’s a difference between electricity and electronics. 

I just want to reiterate this again.  It’s important that any Faraday cage that you plan to use is grounded.  It has to be grounded in order to disperse the energy. 

What you should know though is that a Faraday cage is not fool proof.  The higher the frequency of the magnetic pulse, the faster it is. This is what causes the burn out.  The cages must be grounded, continuously connecting, and the openings of them cannot be too large. Chicken coop wire would work, but only if you double or even triple layered it as the opening are too large. For a reference of opening size, look at the front of your microwave door.  It’s a small mesh.  Just a like a snake can slither its way through the right sized hole, so can an electronic wave.  

Galvanized Trash Can photo c/o housewares.hardwarestore.com

You can have an instant Faraday cage with a galvanized trash can or a large stock pot like they use in restaurants. (Be sure to clamp the lid down. Remember—continuous connection is key. Since Faraday cages are not fool proof, depending on the strength of the pulse, I would recommend burying such containers 2 feet under the ground, storing survival electrical and battery items. (Including batteries). 

An easy way to make a Faraday cage would be to acquire some 2 x 4 brass mesh sheets. (Mythbusters on the Discovery Channel did a couple of experiments using this successfully.)  Make a box frame with the 2 x 4′s and staple the brass mesh to the outside. Create a securely attached/connected access entry within the frame. Solder a ground wire to one of the corners and ground the cage.  Scrap metal and mesh wires can easily be obtained in junk yards, on E-bay, the clay modeling section of a craft store, or at your local hardware or  “farm and feed” store.  The important aspect of this to remember though is that mesh or sheet metal only shields magnetic fields if the frequency is up in the RF range. To properly stop the wave, you need some iron, steel, or some slabs of thick copper.  Most electronics are useful in the VHF/UHF/SHF range today and will need more substantial protection.  Remember when you’re browsing the internet.  Protecting against sparks is not the same as protecting against a strong magnetic pulse.  

You can make your “cage” as small or as large as you’d like.  It wouldn’t be out of the question to continuously line a basement storage room or hole in the ground with copper mesh wire and a grounding rod.

Bottom line, with an appropriately constructed Faraday cage, you can likely protect that which is inside from the electromagnetic attack of an EMP incident or solar flare, thus preserving the function of all that is contained therein.   Here is a very simple example of how Faraday cages work.  (DO NOT try this at home, please)

Note that the Peeps are put into a mesh bowl and covered with a mesh cover. They are then put in the microwave.  The one Peep that wasn’t put in the microwave met his untimely death, while the others were still intact.

For a little bit of a science lesson on the workings of a Faraday cage, check out this YouTube link. The science professor is EXCELLENT.  Note though that he does say that a car is a Faraday cage, however, I want to reiterate that it is NOT sufficient to extinguish the effects of an EMP attack. 

Photo c/o physics.umd.edu/

Be selective in what you protect. It makes no sense to protect a cell phone, for example, as the cell towers will be useless.  If it were me, I would protect radios, communication devices (such as a HAM radio), batteries and all of their respective tools, thumb drives loaded with all of my vital information, and a laptop.  Keep in mind that a Faraday cage should be your LAST concern in terms of protecting every electronic that you enjoy presently.  It’s not like if you preserve your television you’re going to have any “juice” to plug it into.  Don’t focus on a Faraday cage and its time, effort, and expense at the risk of neglecting food, water, and medical supplies. It would be better for you to read up on solar power, wind and steam energy instead.

EMP 101 Series

• EMP 101: Part I–The Likelihood.
• EMP 101: Part II–The Aftermath.
• EMP 101: Part III–Prepare Medically.
• EMP 101: Part IV–Faraday Cages.
  
  Copyright 2009 Preparedness Pro & Kellene Bishop.  All rights reserved.  You are welcome to repost this information so long as it is credited to Preparedness Pro & Kellene Bishop.

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