Computer Sciences

Imaginary numbers protect AI from very real threats

Computer engineers at Duke University have demonstrated that using complex numbers—numbers with both real and imaginary components—can play an integral part in securing artificial intelligence algorithms against malicious ...

Energy & Green Tech

Arctic cold 'no sweat' for electric cars in Norway

Norwegian electric car owners have a word for the way they feel when they look nervously at their battery indicators while driving in subfreezing weather: "rekkevideangst", or "range anxiety".

Energy & Green Tech

Video: Steering drones for power generation

What if you could generate wind power without needing to build wind turbine towers? Dutch company Ampyx Power is developing flying kite-like tethered drones to harness energy directly from high-altitude wind. ESA's NAVISP ...