zhangulei 干部。干是一种美德。 注册 2018-01-06 消息 6,841 荣誉分数 1,320 声望点数 223 2019-11-23 #1 The scientists were closely watching how an excited helium atom emitted light as it decayed. The particles split at an unusual angle, 115 degrees, which couldn't be explained by known physics.
The scientists were closely watching how an excited helium atom emitted light as it decayed. The particles split at an unusual angle, 115 degrees, which couldn't be explained by known physics.
