Carrier command 2 sonic pulse generator2/19/2023 ![]() ![]() The last generation of CRT monitors, which were what most desktop computers used before LCD/LED displays took over, had built-in degaussers to eliminate color aberrations caused by stray fields. Ships in WWII were degaussed to make them less vulnerable to magnetic mines. Weapons aren't even needed to create an EMP, though a gamma ray burst or supernova far enough away to not fry the Earth with enough ionizing radiation to actually pose a threat to human life itself could also accomplish creating a global disaster from an EMP.Ī more docile variant of EMP is "degaussing", which uses a varying magnetic field to remove magnetism from a metal object. It is also possible to build a portable EMP jammer on your own with a disposable point-and-shot camera's electrolytic capacitor, a generator and a coil. Getting a city-sized EMP without a nuclear bomb is not feasible with current technology as to reusable variants, if we had the capacitors necessary to do that, we could also build practical railguns and laser rifles. In case you wonder why the same explosive charge alone couldn't do it, a range can be extended by rigging up a generator to get a directional emission of microwaves instead of a plain magnetic surge. The pulse is far weaker, and can kill maybe an office full of computers. Such a thing is usually a kind of single-use electric generator, which sends out its pulse when crushed by a conventional explosive. If you want to do this zapping without the nuclear fallout, there are a few smaller weapons that can generate an EMP. Also, it's possible that early transistors, which were made of germanium rather than silicon, might be able to withstand an EMP if the device is powered down. Interestingly, ancient computers from the 1950s would also be resistant they were built with vacuum tubes, which can take the pulse a lot better than modern transistors, especially if they were powered down at the time. Military hardware has to be specially shielded to withstand most of the effects. Also, it is theorized that a high-intensity EMP burst could destroy silicon transistor circuitry even if the device is turned off. They are so sensitive, in fact, it has been theorized that a single nuke, detonated in the right part of the upper atmosphere, could take out most of the unprotected computers in the United States. The induced current burns and destroys them. In particular, silicon transistors the building block of modern electronics are very sensitive to these power surges. And since the current is going from zero to huge in a very short amount of time, this means a large portion of the atmosphere becomes a HUGE radio transmitter, broadcasting noise at full power. Any change in current produces radio waves. This means those stripped-off electrons, energized by the gamma rays, are free to move around in an electric current. Because those photons are so very energetic, they do it over a very long distance and make a huge volume of ionized air. ![]() When these photons travel through air, they strip electrons off the air molecules as they zoom past. When a nuclear warhead explodes, it releases a LOT of gamma rays, which are photons with tons of energy. ![]() Sometimes shown to be a temporary effect (especially when the Rule of Fun applies in games), it usually results in the permanent disabling of electronic systems. EMP, short for electromagnetic pulse, is often used in stories to take out anything electronic. ![]()
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