Device small enough to be mounted on trucks, aircraft, or even satellites Sign up to our free weekly IndyTech newsletter delivered straight to your inbox Sign up to our free IndyTech newsletter Sign up to our free IndyTech newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Chinese scientists have developed a compact ultra-powerful energy generator, paving the way for next-generation weapons that could one day be