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Faraday cages cannot block static and slowly varying magnetic fields, such as Earth's magnetic field (a compass will still work inside). To a large degree though, they also shield the interior from external electromagnetic radiation if the conductor is thick enough and any holes are significantly smaller than the radiation's wavelength. For example, certain computer forensic test procedures of electronic components or systems that require an environment devoid of electromagnetic interference may be conducted within a screen room. These screen rooms are essentially work areas that are completely enclosed by one or more layers of fine metal mesh or perforated sheet metal. The metal layers are grounded to dissipate any electric currents generated from the external electromagnetic fields and thus block a large amount of the electromagnetic interference. See also electromagnetic shielding.
Originally posted by camaro68ss
whats it worth saving your electronics when the power grid is wiped out????
Is a cell phone loosing the signal while inside an anti-static bag? no ! You need to rather use a Faraday cage, and the most handy I can think about , is a microwave oven. It is designed to protect you while the chicken is being cooked inside by the microwaves , it also woks the other way around, protecting your items inside the microwave oven while you are cooked outside
Originally posted by Mianeye
Am i wrong if i say that it only affects overhanging electrical wires, and not directly electronics like dvd, radio's and such?
Originally posted by Romanian
reply to post by Phage
eh, it depends. Microprocessors do have wires (golden ones! ) , on a micro local level it can act like a generator, enough to create added electrostatic load within the processor and knock it down.. micro-waving and RFID is a good example (exaggerated hehe)
On September 1–2, 1859, the largest recorded geomagnetic storm occurred. Aurorae were seen around the world, most notably over the Caribbean; also noteworthy were those over the Rocky Mountains that were so bright that their glow awoke gold miners, who began preparing breakfast because they thought it was morning. People who happened to be awake in the northeastern US could read a newspaper by the aurora's light.