"This is a very real threat," he said. "EMP is generated when a small nuclear weapon, 40 to 60 kilotons or about three times the size of a Hiroshima bomb, is detonated 200 miles out in space above ...

TASS/. The range of Russia’s prospective EMP (electromagnetic pulse) cannons, which use a powerful beam of electromagnetic energy to destroy enemy targets, has been increased to 10 km ...