John F. Williams/U.S. Navy
The US Army is building a laser weapon more than a million times more powerful than any used before – although because it delivers short pulses, the overall energy involved is low.
Existing laser weapons produce a continuous beam that is held on a target, such as a drone or missile, until it melts – the first was deployed by the US Navy in 2014. The new weapon, known as the Tactical Ultrashort Pulsed Laser for Army Platforms, would be more like science-fiction movie lasers, firing bullet-like pulses of light. …
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