The following quotes are from a paper by Napier and Asher published in Astronomy & Geophysics.
We know that about one bright comet (of absolute magnitude as bright as 7, comparable to Halley’s Comet) arrives in the visibility zone (perihelion q<5AU, say) each year from the Oort cloud. Most designs that can be found online for a Faraday Cage are for something the size of a shoebox or similar.
An episode of Doomsday Preppers features Tim Ralston (the guy who shot his thumb off) who is using shipping containers to build a bunker (I hope he reinforces them!), partly as protection from an EMP attack. I would HIGHLY Recommend you also install some Ground Rods that will attach to the four corners of the shipping container into a confirmed earth grounding system. That will pass the EMP to the path of least resistance and eliminate any stray fields that may be present.
I had two 6 foot copper grounding rods left over from a construction job, I beat them into the ground with a sledge hammer and attached them to the shipping container with #2 copper wire. However you have to isolate the car (and any other contents) from the metal of the shipping container. All metal houses (shipping container houses) have to be grounded by code with at least (minimum) 2 copper ground spikes, each are at least (minimum) 8 foot long and have to be grounded using heavy gauge wire.
For a Faraday cage to work it has to completely surround the contained objects, sides, top and bottom. Even a thin aluminum skin say aluminum siding with metal screen over the windows will act like a Faraday cage as long is the whole thing is connected and grounded. You would have to do a better job of grounding the doors than just the hinges and also I would use 8 to 12 foot grounding rods to make sure it is properly grounded, but yes in theory these dudes would make a big Faraday Cage.
Instead of working on sealing up doors, maybe create a mesh wall just inside the door like those old hippie bead doors.


If you are really worried then I would put whatever electronic equipment in a steel trash can within the container. We use shipping containers exclusively in the ROV industry; we convert them to control vans for the vehicles.
I worked in a pulsed power lab for a while, and the most common thing we did for shielding was a combination of impedance matched instrument cable (teeeeeensy tiny coaxial cable) and either zinc or nickel spray paint inside our enclosures.
Note: Wrapping the cell phone in the foil, but WITHOUT placing on top of the cardboard box inside the cage, does NOT prevent the cell phone from ringing. Robert, a steel shipping container would be a very solid EMI shielding solution although a ground is not necessary.
Lastly, you mention expense being a huge factor because none exist for the consumer market. A Faraday cage can keep your in contact with the outside world during and after an emergency.
A Faraday cage (also called a Faraday box, or Faraday shield) uses a conductive metal, usually aluminum or copper, to reroute electrical charges.
Theoretically, if you happen to have your phone properly shielded during an EMP, and assuming of course that the nuclear bomb or solar flare responsible didna€™t vaporize you, the surrounding cell towers, and satellites (not to mention the person youa€™re trying to call), youa€™ll still be connected to the outside world, while others fumble in the dark.
It seems to be securely established that ~1–2% of these are captured into Halleytype (HT) orbits. A simple description is a tightly-closed metal box (like an ammo tin), covered in tin foil, grounded, with some form of simple insulation on the inside (like cardboard).
Still, what about one just sitting on the ground – would that be a cheap, effective means to having a Faraday Cage big enough to park a vehicle in? This is in case of an electrical short in the wall against the metal structure and to off set the potential lightening strike.


And yes, they provide a measure of shielding; cell phones, radios, and hand held VHF radios do not function inside without an external antenna.
Then close the cage up and call your cell phone.  If you can hear your cell phone ring, the your cage (or at least the item) is NOT EMP resistant. The positive and negative charges are re-distributed on opposite sides of the container thus nulling out internal fields, in fact, testing has shown that grounding a faraday cage can actually disrupt this re-distribution. Those living in an urban environment may be most susceptible to grid failures due to electronic terrorism or an EMP.While the above simple Faraday box may not protect electronics from the strongest of electromagnetic pulses, at the very least, it will prevent prying ears and eyes from eavesdropping on you.
Essentially, it is a barrier that neither lets electrical waves in or out.These cages block wireless satellite communications, radio and other electromagnetic waves, and heavy-duty versions can prevent damage to sensitive electronic equipment from lightning strikes to electromagnetic pulses (EMP).
Cut pieces of aluminum foil large enough to completely warp around the box and lid in one piece if possible. The dynamical lifetime of a body in such an orbit can be estimated, from which the expected number of HT comets is perhaps ~3000. Put anything electronic inside it and it will survive an EMP – because the cage will receive the energy and dissipate it via the grounding. Help protect your sensitive personal information and expensive electronic equipment with a simple, cheap and effective homemade survival prep. Simply, it protects sensitive electronic equipment like cell phones, tablets, laptops, computers, cameras, GPS, short wave and ham radios, etc. For instance, microwave ovens are designed to keep certain waves from escaping, which then cook your food and not you.



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First aid kits for work vehicles

Rubric: Business Emergency Preparedness



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