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How a retractable plasma blade pushed engineering past its limits

The dream of a real lightsaber has always sounded like a physics joke, not an engineering brief. Yet a retractable plasma ...
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PyroGenesis Signs Agreement with U.S. Defense Contractor to Jointly Pursue Chemical Weapon ...

PyroGenesis Inc. (“PyroGenesis”) (TSX: PYR) (OTCQX: PYRGF) (FRA: 8PY1), the leader in ultra-high temperature processes and ...