Viral Stories ELI5: What are EMPs (electromagnetic pulses)? and how does an EMP jammer work? aeonsource 4 weeks ago 6 Comments Facebook Prev Article Next Article ELI5: What are EMPs (electromagnetic pulses)? and how does an EMP jammer work? View Reddit by OrdinaryChap – View Source Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Share on Skype (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Pinterest (Opens in new window) Facebook Prev Article Next Article About The Author aeonsource More from this Author 6 Comments [deleted] November 18, 2017 [removed] Reply Timpstar November 18, 2017 It’s, as the name implies, a quick, high-energy pulse of electromagnetism. It typically occurs when nuclear explosions happen, and the way it damages electronics is via it’s strong charge, which essentially crisps electronics (similar in effect to when a charge plug is fried if a house is struck by lightning) When a nuclear detonation occurs in high altitude, the EMP caused is then called HEMP (High-altitude Electromagnetic Pulse). It has no negative effects on humans though. An EMP jammer works by sending out weak EMP’s in intervals, not destroying but disrupting electronics in it’s effective radius. Magnets have the same effect on electronics, and this is why you don’t let a magnet near your phone for example. Reply choppercan November 18, 2017 They interupt capaciters and fry delicate electronics. Un-like Hollywood, they will not permanently destroy the power grid. Many high grade devices are grounded and electro-magnetically hardened to withstand such events. They happen quite often in nature. Have you ever lost power on a nice sun-shiney day? Reply thr0ws3xcept1on November 18, 2017 So imagine that people can communicate in a pond by making little ripples that go across the surface. Some use big, long ripples to go far, others with little short ripples that only go a short distance. Then, someone throws a big rock into the middle of the pond. Suddenly, there are so many ripples that no one can tell what messages are, and some people even get wet and don’t want to send ripples anymore! That’s a simple explanation for how EM works: the pond is the air, ripples are EM waves, people are the devices that send and received, and an EM pulse is that big rock. Reply robynflower November 18, 2017 An EMP is a pulse generated by an electric source which rapidly changes its output. Due to the link between magnetism and electricity an EMP can generate a surge of current in an electrical device. The longer wires are in a device the more current will be generated, anything that can reduce that surge will protect or “harden” a device against an EMP. Sometimes the effect of the EMP is indirect due to changes in the upper atmosphere rather than directly creating an EMP. For more details – https://www.youtube.com/watch?v=fMaAr9Febl8 Reply Angry_Grizzly_Bear November 19, 2017 You are pribably familiar with the antenna you may use for your radio, tv, etc. But you may not realize that nearly every piece of metal acts as am antenna. The ones you see in devices are specially made to be very sensitive, but with large electromagnetic fields even a regular wire or piece of steel can ve an antenna. An EMP works by detonating an electromagnetic field that is large enough to turn every wire in all your electronics into an antenna by ‘induced current’, which means the electromagnetic field is so large that conductive metal will act like an antenna and start to show electricity moving through it. Electronic devices are made to only have the electricity move in certain very specific ways, so when this happens it is usually very destructive. Military and important utilities have various protection schemes to make them resistant to these effects. The most common sources of EMP are solar flares and nuclear detonations. Reply Add Comment Cancel reply Notify me of follow-up comments by email. Notify me of new posts by email.