Force fields are the stuff of science fiction, but directed energy systems to fry drones, or stop people, already exist. Here's what's real about the tech—and what's more fantastical.
The Active Denial System, or ADS, uses a type of directed energy. It uses radio waves at a frequency of 95 gigahertz.The best armor, if it could be devised, would weigh absolutely nothing. It would surround its wearer in an impenetrable aura of pure protection, holding all threats at bay. This idealized defensive system could come in the form of a force field, and it would be useful for stopping everything from nuclear missiles to small drones.
As defined by the report, “directed energy” is any focused beam of electro-magnetic energy used for a military purpose. This can be the burning destruction of a drone from a high powered laser, jamming radio frequencies, or it can even be as simple as using a low-powered laser to illuminate a target for a laser-guidance system.
“Although a concept often associated with science fiction, in fact ground and ship-based DE [directed energy] defense systems effectively act like point-localized force fields against small and relatively soft targets today,” the report says, before suggesting that sufficiently advanced directed energy could solve the
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