A town centre's bedraggled Christmas tree is to be exchanged for a spruced-up pine after the local council branded it a ...

科学家们设计了一种只凭手腕运动就可以抓握物体的机械手。这只由英国剑桥大学研究团队研发的3D打印机械手中被放置了传感器，从而能够 “感知” 它所触摸的物体。 Researchers say their robotic hand can handle items that are currently too delicate for machines. The hand uses wrist ...

As Mexican families prepare for Day of the Dead celebrations, altars are set up to welcome back loved ones under the belief that they return home for one night each Nov. 2.