ElectroMagneticPulse
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Spray-on conductive concrete will shield us from EMP attacks
While the threat of an EMP attack knocking out electronics and sending the world into an apocalyptic spiral seems far off, it's good to know that someone is working to protect us from it anyway. University of Nebraska engineers Christopher Tuan and Lim Nguyen have successfully created a cost-effective concrete mix that acts as a shield against "intense pulses of electromagnetic energy" and protects any electronic devices inside.
Visualized: Sandia National Laboratories' Z machine erupts in a web of lightning
Sandia National Laboratories' Z machine sounds like it belongs in a James Bond movie more than it does an Alberquerque research facility. Based on what it can do, that's not as far-fetched as it seems. What you see isn't the handiwork of some electric spider -- it's what you witness in the immediate fraction of a second after the Z's electromagnetic pulse kicks in and forks of lightning burst across the 108-foot distance inside. The pulse in question is key to Sandia's studies of fusion and the effect of very intense magnetic pressures on materials that normally refuse to change states. Even in 2006, the Z was putting out pressure more than 10 million times that of the atmosphere, and it successfully melted diamond at roughly half that strength. It goes without saying that we don't want to be anywhere near this kind of energy when scientists flick the switch, but we're glad to see that something so pretty and deadly can help us understand physics. [Image credit: Randy Montoya, Sandia National Laboratories]
US government contractor developing 'microwave gun,' Hot Pockets tremble
Ah, the beloved "electronic bomb," able to disable all technology in its vicinity: variations on the concept go way back, but useful prototypes remain tantalizingly out of reach. Into the breach steps defense contractor BAE Systems, taking a fresh crack with a High-Powered Microwave (HPM) gun intended to disable small boat engines – if successful, the technology may also target ships, UAVs, and missile payloads. The secret-shrouded weapon sounds similar to Boeing's planned airborne EMP weapon, but lacking the missile delivery systems. BAE seems to be betting big on electromagnetic warfare as a future battlefield tactic, with a manager pitching the sci-fi scene to Aviation Week: "Unlike lasers, HPM beams don't need a lot of accuracy. With a fan [of HPM energy] you can target 10-30 small boats. If you can knock out 50-75% of the engines in a swarm, you can then concentrate on the remainder with lasers or kinetic [cannons]." To develop better defenses against such attacks, the contractor received $150,000 from the Air Force to test-fire microwaves at military computers. No word on whether said defenses involve generous use of tin foil.
Eureka's EMP cannon destined for the Marines? (video)
Marines serving overseas have a low-tech, time-tested way of stopping cars that ignore checkpoints -- namely, a .50-caliber slug to the engine block. Still, that hasn't prevented companies like Boeing and Eureka Aerospace from pouring tons of money into EMP research. The cannon (whether mounted on aircraft or a squad car) is nowhere near ready for prime time -- but when has that stopped the Pentagon from sinking tons of money into something? And the USAF isn't the only organization getting involved: according to Flightglobal, the Marine Corps is getting its own demo of the 55lb device (which can disable cars up to 200 meters away) next month at Dahlgren naval warfare center. Vintage autos (really anything manufactured before the mid-1970s) won't be harmed by the weapon, meaning that there still may be a place for lead slugs in modern peacekeeping missions after all. Video after the break.
Boeing to develop microwave-based airborne EMP weapon
Boeing's been busy with the high-tech death lately -- just a week after the company announced the Phantom Ray fighter UAV, it's back in the news with a high-powered airborne microwave weapon designed to knock out enemy electronics. The goal is to more or less destroy the enemy's tech with out having to set off one of those pesky nuclear explosions necessary for an EMP, and Boeing plans to test the tech out both in the air and on the ground several times over the next three years as part of the Air Force's Counter-electronics High power microwave Advanced Missile Project (CHAMP) project. We'll be ready with the popcorn. [Via The Register]
