读报
登录注册网站首页
 

SCIENCE STUDY

‘Magic’ of blue fire

作者:TEENS
Aa
  • -   
  •    +


Fireworks come in many bright colors. TUCHONG

Fireworks are a blast (乐事) – literally. But have you ever noticed that you don’t see blue fireworks very often? It turns out that blue fireworks are a challenge.

点击阅读全文
联系我们  |  应用下载  |  版权声明
© i21st.cn   京ICP备13028878号-12
 
选择报纸
选择报纸
关闭