A Portable Device For Frying Electronics

Circuit Breaker: Microwaves cause a current surge that kills electronics.
Courtesy Texas Tech University

From Popular Science:

An enemy missile has no strategic value if its computer is down. A high-power-microwave emitter can disable a missile's electronics on the launchpad, leaving bystanders unharmed -- and now Texas Tech University engineers have a plan to scale down the truck-size tech.

To make strong microwaves, you need a lot of electricity, usually from a bulky generator. Instead the team packed small explosives into a five-foot-long, six-inch-wide tube. The detonation produces a burst of electrons, which power a microwave tube—similiar to the type in a microwave oven—that radiates microwaves.

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