Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.
Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...
北京时间2025年1月26日晚上八点,一群人跃跃欲试,摩拳擦掌。ta们有男有女,肤色各异,身处八个时区的十六个城市,这一刻对ta们来说是凌晨、早上、中午、深夜;ta们手中的乐器加起来有20多种:吉他、长笛、钢琴、二胡、琵琶、萨克斯、架子鼓、爱尔兰低音 ...