うちゅうせん
宇宙線
1. cosmic ray
2. Cosmic rayCosmic rays are energetic charged subatomic particles, originating in outer space. They may produce secondary particles that penetrate the Earth's atmosphere and surface. The term ray is historical as cosmic rays were thought to be electromagnetic radiation. Most primary cosmic rays (those that enter the atmosphere from deep space) are composed of familiar stable subatomic particles that normally occur on Earth, such as protons, atomic nuclei, or electrons.
Read “Cosmic ray” on English Wikipedia
Read “宇宙線” on Japanese Wikipedia
Read “Cosmic ray” on DBpedia
Read “Cosmic ray” on English Wikipedia
Read “宇宙線” on Japanese Wikipedia
Read “Cosmic ray” on DBpedia
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