坚硬但可拉伸: 科学家创造出“牢不可破”的新材料 诸平 Researchers have created a new class of materials called “glassy gels” that are as hard as glassy polymers, but – if you apply enough force – can stretch up to five times their original length, rather than breaking. A key thing th ...
6.12世界气象组织(WMO)执行理事会第78次届会讨论并审议通过了“地球系统观测和预报”议题中的WMO空间天气活动(2024—2027)四年计划,并明确了通过WMO全球综合观测系统(WIGOS)优化地球系统观测数据的获取以及相关环境可持续性的战略目标。 空间天气:“space weather” - the physical and phenomenological state of th ...