Citation: http://www.guardian.co.uk/science/2013/may/11/international-space-station-spacewalk-ammonia
Hmm, it is interesting that the International Space Station uses ammonia for cooling systems, instead of liquid nitrogen or helium.
Diary of a rail fan in Kansai,Japan(Ver.2)
About world's rail news, general news, my train pictures, and travel diary)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. クリエイティブ・コモンズ 表示 - 非営利 - 改変禁止 4.0 国際 ライセンスの下に提供されています。
| List of my travel diary | My train photoes | The other contents |
