LISBON, Jan. 20 (Xinhua) -- In a quiet university library in central Portugal, laptop screens glow late into the evening. Some students hesitantly type, while others scroll, copy, and paste. One ...

SYDNEY, Jan. 19 (Xinhua) -- Researchers in Australia have developed the world's first motor that spins using a droplet of liquid metal, a breakthrough that could transform soft robotics, flexible ...