Time travel is a familiar subject of science fiction and fantasy stories, from H.G. Wells to Rod Serling to Hot Tub Time Machine. But could time travel ever be ......

心血管疾病是最少见的丧命因素之一，通过监控心电、心音、脉搏等信号可超过疾病防治目的。...

This time last year, Uber’s chief executive Travis Kalanick was on the road raising money for Uber China, seeking to conquer a market that he called “one of the......

据外媒报导，加拿大滑铁卢大学LindaNazar教授宣告，其研究团队首次构建四电子切换（four－electronconversion），该技术将构建锂－氧电池（lithium－oxygen，Li－O2）的电子存储容量翻番。...

科技快报网·2月24日，今晚九点，华为终端“5G全场景”系列发布会在巴塞罗那在线开会，陆续公布了手机、PC、平板、5G工业模组等新品。...